面向对象原理与Java实践课程设计
一 、课程设计目的
通过一个数据库管理信息系统的设计与实现，掌握所学Java课程的相关知识和技术，包括：
（1）合理定义接口、类，以及软件的结构
（2）正确使用面向对象编程语言进行编程
（3）掌握图形用户界面应用软件的开发方法
（4）掌握网络编程方法
（5）掌握多线程的应用编程
（6）熟练操作数据库
（7）熟练使用开发工具
二 、课程设计内容
（一）设计题目：学生成绩管理信息系统设计与实现。
（二）系统功能：软件功能分为管理员用户管理功能、教师用户管理功能与学生用户操作功能三部分。
1、管理员通过用户或和密码登录系统进入管理员用户管理界面，能够进行如下操作：
(1) 建立课程、班级及成员信息，将这些信息保存在数据库中并可以对课程、班级及成员进行增、删 、改、查操作。数据库中包含如下信息：学生学号、姓名、班级，面向对象原理与Java实践、高等数学、大学英语等，数据至少要有5个班级且每个班级要有l0名以上学生。
(2) 对教师用户进行增、删 、改、查管理操作。
2、教师用户通过用户名和密码登录系统进入教师用户操作界面，能够进行如下操作：
(1) 录入某门课程各班学生的成绩。
(2) 修改某学生的某门课程成绩。
(3) 查询某学生和某门课程各班学生的成绩。
(4) 查询某个班级某门课程的最高分、最低分及相应学生姓名、班级和学号。
(5) 列表显示某个班级某门课程成绩不及格的学生。
3、学生用户通过用户名和密码登录系统进入学生用户操作界面，能够进行如下操作：
(1) 通过学号和密码登录系统。登录成功后可修改密码。
(2) 查询自己的各科成绩。
三、课程设计要求
1、根据设计题目写出用户基本需求（即需求分析）。
功能需求分析
该学生成绩管理系统具备三方面的功能：第一方面是学生用户，学生通过输入学号和密码进入系统后，可以进行一些基础查询（各科成绩查询）同时可以修改自己的密码，重新登录系统。第二方面是教师用户，老师通过输入工号和密码进入系统后，可以录入某门课程各班学生的成绩， 修改某学生的某门课程成绩，查询某学生和某门课程各班学生的成绩，查询某个班级某门课程的最高分、最低分及相应学生姓名、班级和学号，列表显示某个班级某门课程成绩不及格的学生，还可以修改自己的密码，和重新登录系统。第三方面是管理员，管理员通过用户或和密码登录系统进入管理员用户管理界面，建立课程、班级及成员信息，将这些信息保存在数据库中并可以对课程、班级及成员进行增、删 、改、查操作，对教师用户进行增、删 、改、查管理操作。
2、根据需求对系统进行分析与设计，并画出系统的结构图。
3、程序实现系统的功能。使用图形界面，按日常软件设计和使用习惯设计菜单和界面。
登录界面
package UI;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import bean.User;
import sql.Dao;
import UI.Admpanel;
import UI.Studentpanel;
import UI.Teacherpanel;
public class denglu {
// 登录界面
Dao jdbc=null;
JFrame frame;
ImageIcon logo;
JLabel jl1,Jl2,Jl3;
JTextField name;
JPasswordField password;
JRadioButton stu,tea,adm;
ButtonGroup group;
JButton b1;
JDialog d;
String loginType;
int screenWidth = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
int screenHeight = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();
public denglu(Dao jdbc) {
frame=new JFrame("学生成绩管理系统");
frame.setLayout(new FlowLayout());
//登录界面布局
logo=new ImageIcon("bin\\images.flower3.jpg");
jl1=new JLabel(logo);
frame.add(jl1);
frame.setLayout(null);
frame.setSize(500, 400);
frame.setResizable(false);
frame.setLocationRelativeTo(null);
// JPanel panel1=new JPanel();
// JPanel panel2=new JPanel();
// panel2.setLayout(new GridLayout(3,1));
Jl2=new JLabel("账号");
Jl2.setLocation(80, 180);
Jl2.setSize(80, 30);
frame.add(Jl2);
name=new JTextField(10);
name.setLocation(160, 180);
name.setSize(240, 30);
frame.add(name);
Jl3=new JLabel("密码");
Jl3.setLocation(80, 220);
Jl3.setSize(80, 30);
frame.add(Jl3);
password=new JPasswordField();
password.setLocation(160, 220);
password.setSize(240, 30);
frame.add(password);
//学生，教师，管理员单选框设置
group=new ButtonGroup();
stu=new JRadioButton("学生");
tea=new JRadioButton("教师");
adm=new JRadioButton("管理员");
stu.setBounds(150, 270, 80, 30);
tea.setBounds(230, 270, 80, 30);
adm.setBounds(310, 270, 80, 30);
JLabel a=new JLabel(getImageIcon("bin\\Studentsystem\\Images",500, 150));
int w=a.getWidth();
int h=a.getHeight();
a.setSize(500, 150);
a.setLocation(0, 0);
frame.add(stu);
group.add(stu);
frame.add(tea);
group.add(tea);
frame.add(adm);
group.add(adm);
b1=new JButton("登录");
b1.setLocation(80, 300);
b1.setSize(320, 30);
frame.add(b1);
frame.setVisible(true);
// 登录时选择用户学生，教师，管理员
b1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(adm.isSelected()) {
loginType="admin";
}
if(stu.isSelected()) {
loginType="student";
}
if(tea.isSelected()) {
loginType="teacher";
}
//向数据库发起查询，若账号密码匹配，则登陆成功，否则失败
User user=null;
if((user=jdbc.sendLogin(name.getText(), password.getText()))!=null) {
System.out.println("__________-"+loginType);
if(!loginType.equalsIgnoreCase(user.getType())) {
System.out.println("__________-user.getType()"+user.getType());
d=new JDialog(frame,"登录异常提示",true);
d.setLayout(null);
d.setLocation((screenWidth-400)/2, (screenHeight-300)/2);
JLabel tips=new JLabel("身份信息不匹配，请检查后再试！");
JButton ok=new JButton("确认");
tips.setBounds(100, 80 ,300, 30);
ok.setBounds(100, 150, 200, 30);
d.setSize(400,300);
ok.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// 关闭模态框
d.dispose();
System.out.println("触发关闭模态框");
d.setVisible(false);
}
});
d.add(tips);
d.add(ok);
d.setVisible(true);
}else {
System.out.println(user.toString());
frame.setVisible(false);
switch(user.getType()) {
case "teacher":
new Teacherpanel(user,frame,jdbc);
break;
case "student":
new Studentpanel(user,frame,jdbc);
break;
case "admin":
new Admpanel(user,frame,jdbc);
break;
}
}
}else {
d=new JDialog(frame,"登录异常提示",true);
d.setLayout(null);
d.setLocation((screenWidth-400)/2, (screenHeight-300)/2);
JLabel tips=new JLabel("账号或者密码错误，请检查后再试！！");
JButton ok=new JButton("确认");
tips.setBounds(100, 80 ,300, 30);
ok.setBounds(100, 150, 200, 30);
d.setSize(400,300);
ok.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// 关闭模态框
d.dispose();
System.out.println("触发关闭模态框");
d.setVisible(false);
}
});
d.add(tips);
d.add(ok);
d.setVisible(true);
}
}
});
}
public ImageIcon getImageIcon( String path, int width, int height) {
ImageIcon icon = new ImageIcon(path);
icon.setImage(icon.getImage().getScaledInstance(width, height,icon.getImage().SCALE_DEFAULT));
return icon;
}
}
管理员
package UI;
import java.awt.BorderLayout;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableCellRenderer;
import bean.SubjectInfo;
import bean.User;
import sql.Dao;
public class Admpanel implements ActionListener {
String[] columnTitle= {"课程名称","授课班级","教师编号"};
String[] stuTitle= {"账号","密码","姓名","班级"};
String[] teaTitle= {"账号","密码","姓名"};
String[] classTitle= {"班级名称"};
List<SubjectInfo> subInfo=null;//所有课程信息
JFrame login;
User user=null;
Dao jdbc=null;
JPanel d;
JFrame f=null;
int screenWidth = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
int screenHeight = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();
public Admpanel(User user,JFrame login,Dao jdbc) {
this.login=login;
this.user=user;
this.jdbc=jdbc;
f=new JFrame("管理员端："+user.getName()+"欢迎您的使用!");
f.setLocation((screenWidth-800)/2, (screenHeight-600)/2);
f.setLayout(new GridLayout(1,1));
f.setSize(800, 600);
d=new JPanel() ;
JLabel a=new JLabel(getImageIcon("F:/1/bin/Studentsystem/Images",800, 600));
d.add(a);
f.add(d,BorderLayout.CENTER);
JMenuBar menuBar = new JMenuBar();
JMenu m1 = new JMenu("课程管理");
JMenu m2 = new JMenu("班级管理");
JMenu m3 = new JMenu("学生管理");
JMenu m4 = new JMenu("教师管理");
JMenu m5 = new JMenu("更多选项");
menuBar.add(m1);
menuBar.add(m2);
menuBar.add(m3);
menuBar.add(m4);
menuBar.add(m5);
// m1
JMenuItem m11 = new JMenuItem("查看所有课程");
JMenuItem m12 = new JMenuItem("删除原有课程");
JMenuItem m13 = new JMenuItem("添加新的课程");
JMenuItem m14 = new JMenuItem("修改原有课程");
m1.add(m11);
m1.add(m12);
m1.add(m13);
m1.add(m14);
m11.addActionListener(this);
m12.addActionListener(this);
m13.addActionListener(this);
m14.addActionListener(this);
//m2
JMenuItem m21 = new JMenuItem("添加班级");
JMenuItem m22 = new JMenuItem("删除班级");
JMenuItem m23 = new JMenuItem("查看所有班级");
JMenuItem m24 = new JMenuItem("修改班级名称");
m2.add(m21);
m2.add(m22);
m2.add(m23);
m2.add(m24);
m21.addActionListener(this);
m22.addActionListener(this);
m23.addActionListener(this);
m24.addActionListener(this);
//m3
JMenuItem m31 = new JMenuItem("添加学生用户");
JMenuItem m32 = new JMenuItem("删除学生用户");
JMenuItem m33 = new JMenuItem("所有学生用户");
JMenuItem m34 = new JMenuItem("重置学生密码");
JMenuItem m35= new JMenuItem("修改学生姓名");
m3.add(m31);
m3.add(m32);
m3.add(m33);
m3.add(m34);
m3.add(m35);
m31.addActionListener(this);
m32.addActionListener(this);
m33.addActionListener(this);
m34.addActionListener(this);
m35.addActionListener(this);
//m4
JMenuItem m41 = new JMenuItem("添加教师用户");
JMenuItem m42 = new JMenuItem("删除教师用户");
JMenuItem m43 = new JMenuItem("所有教师用户");
JMenuItem m44 = new JMenuItem("重置教师密码");
JMenuItem m45 = new JMenuItem("修改教师姓名");
m4.add(m41);
m4.add(m42);
m4.add(m43);
m4.add(m44);
m4.add(m45);
m41.addActionListener(this);
m42.addActionListener(this);
m43.addActionListener(this);
m44.addActionListener(this);
m45.addActionListener(this);
//m5
JMenuItem m51 = new JMenuItem("切换用户");
JMenuItem m52 = new JMenuItem("退出系统");
m5.add(m51);
m5.add(m52);
m51.addActionListener(this);
m52.addActionListener(this);
f.setJMenuBar(menuBar);
f.setVisible(true);
}
public ImageIcon getImageIcon( String path, int width, int height) {
ImageIcon icon = new ImageIcon(path);
icon.setImage(icon.getImage().getScaledInstance(width, height,icon.getImage().SCALE_DEFAULT));
return icon;
}
@Override
public void actionPerformed(ActionEvent e) {
f.setResizable(true);
switch(e.getActionCommand()) {
case "添加新的课程":
d.removeAll();
JComboBox classes=new JComboBox();
JComboBox teaIds=new JComboBox();
List listClasses=jdbc.allClass();
List listTeaIds=jdbc.allTeacherId();
for(int i=0;i<listClasses.size();i++) {
classes.addItem(listClasses.get(i));
}
for(int i=0;i<listTeaIds.size();i++) {
teaIds.addItem(listTeaIds.get(i));
}
subInfo=jdbc.allSubInfo();
String[][] data=new String[subInfo.size()][];
for(int i=0;i<subInfo.size();i++) {
data[i]=subInfo.get(i).getStringArray();
}
JTable table=new JTable(data,columnTitle);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table.setDefaultRenderer(Object.class, cr);
table.setEnabled(false);
// d=new JDialog(f,"添加新的课程",true);
// JFrame d=new JFrame();
d.setLayout(new BorderLayout());
d.add(new JScrollPane(table),BorderLayout.CENTER);
//JPanel
JPanel p=new JPanel();
p.setLayout(new GridLayout(5,6,10,10));
JLabel tip1=new JLabel(" 课程名称:");
JTextField subName=new JTextField(10);
JLabel tip2=new JLabel(" 授课班级:");
JLabel tip3=new JLabel(" 教师编号:");
JButton submit=new JButton("添加");
p.add(tip1);
p.add(subName);
p.add(tip2);
p.add(classes);
p.add(tip3);
p.add(teaIds);
p.add(submit);
submit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jdbc.addSubject(subName.getText(), (String)classes.getSelectedItem(), (String)teaIds.getSelectedItem());
JLabel result=new JLabel(" 添加课程成功！！！ ");
p.add(result);
p.updateUI();
}});
JLabel tip4=new JLabel("所有课程信息如下： ");
d.add(tip4,BorderLayout.NORTH);
d.add(p,BorderLayout.SOUTH);
f.add(d,BorderLayout.CENTER);
d.updateUI();
break;
case "删除原有课程":
d.removeAll();
subInfo=jdbc.allSubInfo();
String[][] data1=new String[subInfo.size()][];
JComboBox choose=new JComboBox();
for(int i=0;i<subInfo.size();i++) {
choose.addItem(subInfo.get(i).getComboBoxString());
data1[i]=subInfo.get(i).getStringArray();
}
JTable table1=new JTable(data1,columnTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table1.setDefaultRenderer(Object.class, cr);
table1.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(table1),BorderLayout.CENTER);
JLabel result=new JLabel("所有课程信息如下： ");
d.add(result,BorderLayout.NORTH);
JPanel dp=new JPanel();
dp.setLayout(new GridLayout(5,1,10,10));
JLabel tip=new JLabel("请选择要删除的课程信息：（会将该课程的所有学生的成绩清空） ");
JButton submitDel=new JButton("删除");
submitDel.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String item=(String)choose.getSelectedItem();
String[] infor=item.split("----");
jdbc.delSubject(infor[1], infor[0]);
JLabel result=new JLabel("删除课程成功！");
dp.add( result);
dp.updateUI();
}
});
dp.add(tip);
dp.add(choose);
dp.add(submitDel);
d.add(dp,BorderLayout.SOUTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "修改原有课程":
d.removeAll();
JComboBox subs=new JComboBox();
JComboBox teaIds2=new JComboBox();
Set setSubs=jdbc.allSubject();
List listTeaIds1=jdbc.allTeacherId();
Iterator it=setSubs.iterator();
while(it.hasNext()) {
subs.addItem(it.next());
}
for(int i=0;i<listTeaIds1.size();i++) {
teaIds2.addItem(listTeaIds1.get(i));
}
subInfo=jdbc.allSubInfo();
String[][] data2=new String[subInfo.size()][];
for(int i=0;i<subInfo.size();i++) {
data2[i]=subInfo.get(i).getStringArray();
}
JTable table2=new JTable(data2,columnTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table2.setDefaultRenderer(Object.class, cr);
table2.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(table2),BorderLayout.CENTER);
//JPanel
JPanel p1=new JPanel();
p1.setLayout(new GridLayout(6,2,10,10));
JLabel t1=new JLabel(" 原课程名称:");
JLabel t2=new JLabel(" 修改后的课程名称:");
JTextField nSubName=new JTextField(10);
JLabel t4=new JLabel(" 修改后的教师编号:");
JButton submit1=new JButton("确认修改");
p1.add(t1);
p1.add(subs);
p1.add(t2);
p1.add(nSubName);
p1.add(t4);
p1.add(teaIds2);
p1.add(submit1);
JLabel result1=new JLabel();
submit1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(nSubName.getText().replaceAll(" ", "").equalsIgnoreCase("")) {
result1.setText("修改后的课程名称不能为空！！！ ");
p1.add(result1);
p1.updateUI();
return;
}
SubjectInfo old=new SubjectInfo();
old.setSubjectName((String)subs.getSelectedItem());
SubjectInfo snew=new SubjectInfo();
snew.setSubjectName(nSubName.getText());
snew.setTeacherId((String)teaIds2.getSelectedItem());
jdbc.updSubject(old, snew);
result1.setText(" 修改课程成功！！！ ");
p1.add(result1);
p1.updateUI();
}});
JLabel tis=new JLabel("所有课程信息如下： ");
d.add(tis,BorderLayout.NORTH);
d.add(p1,BorderLayout.SOUTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "查看所有课程":
d.removeAll();
subInfo=jdbc.allSubInfo();
String[][] dataSub=new String[subInfo.size()][];
for(int i=0;i<subInfo.size();i++) {
dataSub[i]=subInfo.get(i).getStringArray();
}
JTable table3=new JTable(dataSub,columnTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table3.setDefaultRenderer(Object.class, cr);
table3.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(table3),BorderLayout.CENTER);
JLabel tipDetial=new JLabel("所有课程详细信息如下： ");
tipDetial.setEnabled(false);
d.add(tipDetial,BorderLayout.NORTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "添加学生用户":
d.removeAll();
d.setLayout(null);
JLabel lab0=new JLabel("账号：");
JTextField id=new JTextField(5);
JLabel lab1=new JLabel("密码：");
JTextField password=new JTextField(5);
JLabel lab2=new JLabel("姓名");
JTextField name=new JTextField(5);
JLabel lab3=new JLabel("班级");
JTextField className=new JTextField(5);
JButton sub=new JButton("添加");
JLabel tipTop=new JLabel("请输入要添加的学生信息：");
tipTop.setBounds(275, 120, 200, 30);
JLabel res=new JLabel();
lab0.setBounds(275, 150, 50, 30);
id.setBounds(325, 150, 200, 30);
lab1.setBounds(275, 190, 50, 30);
password.setBounds(325, 190, 200, 30);
lab2.setBounds(275, 230, 50, 30);
name.setBounds(325, 230, 200, 30);
lab3.setBounds(275, 270, 50, 30);
className.setBounds(325, 270, 200, 30);
sub.setBounds(275, 310, 250, 30);
res.setBounds(360, 350, 250, 30);
// lab0.setBounds(30, 0, 50, 30);
// id.setBounds(80, 0, 50, 30);
// lab1.setBounds(140, 0, 50, 30);
// password.setBounds(190, 0, 50, 30);
d.add(tipTop);
d.add(lab0);
d.add(id);
d.add(lab1);
d.add(password);
d.add(lab2);
d.add(name);
d.add(lab3);
d.add(className);
d.add(sub);
d.add(res);
sub.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println(name.getText()+"---"+className.getText());
jdbc.addStu(id.getText(), password.getText(), name.getText(), className.getText());
res.setText("添加成功！");
}});
d.setVisible(true);
d.updateUI();
break;
case "删除学生用户":
//显示所有学生用户
d.removeAll();
List<User> liststus=jdbc.allStuInfo();
String[][] stus=new String[liststus.size()][];
for(int i=0;i<liststus.size();i++) {
stus[i]=liststus.get(i).getStringArrayStu();
}
JTable tableStu=new JTable(stus,stuTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableStu.setDefaultRenderer(Object.class, cr);
tableStu.setEnabled(false);
d.setLayout(new BorderLayout());
JLabel ti4=new JLabel("共有 "+stus.length+"条学生记录，详细信息如下：");
d.add(ti4,BorderLayout.NORTH);
d.add(new JScrollPane(tableStu),BorderLayout.CENTER);
JPanel ps=new JPanel();
JLabel tip01=new JLabel("请选择要删除的学生的id（删除后将无法恢复，其对应成绩记录也将被删除，请谨慎操作）：");
JButton del=new JButton("删除");
JLabel delResult=new JLabel();
ps.setLayout(new GridLayout(5,1,10,10));
JComboBox stuIds=new JComboBox();
List list=jdbc.allStuId();
for(int i=0;i<list.size();i++) {
stuIds.addItem(list.get(i));
}
ps.add(tip01);
ps.add(stuIds);
ps.add(del);
ps.add(delResult);
d.add(ps,BorderLayout.SOUTH);
del.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jdbc.delStu((String)stuIds.getSelectedItem());
delResult.setText("删除学生"+(String)stuIds.getSelectedItem()+"信息成功！");
}} );
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "重置学生密码":
f.setResizable(false);
//显示所有学生用户
d.removeAll();
liststus=jdbc.allStuInfo();
stus=new String[liststus.size()][];
for(int i=0;i<liststus.size();i++) {
stus[i]=liststus.get(i).getStringArrayStu();
}
tableStu=new JTable(stus,stuTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableStu.setDefaultRenderer(Object.class, cr);
tableStu.setEnabled(false);
d.setLayout(new BorderLayout());
ti4=new JLabel("共有 "+stus.length+"条学生记录，详细信息如下：");
d.add(ti4,BorderLayout.NORTH);
d.add(new JScrollPane(tableStu),BorderLayout.CENTER);
ps=new JPanel();
tip01=new JLabel("请选择要重置密码的学生id：");
tip=new JLabel("请输入新密码：");
del=new JButton("重置");
JTextField psd=new JTextField(5);
delResult=new JLabel();
ps.setLayout(new GridLayout(5,1,10,10));
stuIds=new JComboBox();
list=jdbc.allStuId();
for(int i=0;i<list.size();i++) {
stuIds.addItem(list.get(i));
}
ps.add(tip01);
ps.add(stuIds);
ps.add(tip);
ps.add(psd);
ps.add(del);
ps.add(delResult);
d.add(ps,BorderLayout.SOUTH);
del.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(!psd.getText().replaceAll(" ", "").equals("")) {
jdbc.updUserPassword(psd.getText(), (String)stuIds.getSelectedItem());
delResult.setText("重置学生"+(String)stuIds.getSelectedItem()+"密码成功！");
}else {
delResult.setText("重置后的密码不能为空！");
}
ps.updateUI();
}} );
d.updateUI();
break;
case "修改学生姓名":
f.setResizable(false);
//显示所有学生用户
d.removeAll();
liststus=jdbc.allStuInfo();
stus=new String[liststus.size()][];
for(int i=0;i<liststus.size();i++) {
stus[i]=liststus.get(i).getStringArrayStu();
}
tableStu=new JTable(stus,stuTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableStu.setDefaultRenderer(Object.class, cr);
tableStu.setEnabled(false);
d.setLayout(new BorderLayout());
ti4=new JLabel("共有 "+stus.length+"条学生记录，详细信息如下：");
d.add(ti4,BorderLayout.NORTH);
d.add(new JScrollPane(tableStu),BorderLayout.CENTER);
ps=new JPanel();
tip01=new JLabel("请选择要修改姓名的学生id：");
tip=new JLabel("请输入新的学生姓名：");
del=new JButton("确认");
psd=new JTextField(5);
delResult=new JLabel();
ps.setLayout(new GridLayout(5,1,10,10));
stuIds=new JComboBox();
list=jdbc.allStuId();
for(int i=0;i<list.size();i++) {
stuIds.addItem(list.get(i));
}
ps.add(tip01);
ps.add(stuIds);
ps.add(tip);
ps.add(psd);
ps.add(del);
ps.add(delResult);
d.add(ps,BorderLayout.SOUTH);
del.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(!psd.getText().replaceAll(" ", "").equals("")) {
jdbc.updUserName(psd.getText(), (String)stuIds.getSelectedItem());
delResult.setText("修改学生"+(String)stuIds.getSelectedItem()+"姓名成功！");
}else {
delResult.setText("修改后的姓名不能为空！");
}
ps.updateUI();
}} );
d.updateUI();
break;
case "所有学生用户":
d.removeAll();
List<User> liststus1=jdbc.allStuInfo();
String[][] stus1=new String[liststus1.size()][];
for(int i=0;i<liststus1.size();i++) {
stus1[i]=liststus1.get(i).getStringArrayStu();
}
JTable tableStu1=new JTable(stus1,stuTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableStu1.setDefaultRenderer(Object.class, cr);
tableStu1.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tableStu1),BorderLayout.CENTER);
//JPanel
JLabel ti41=new JLabel("共有 "+stus1.length+"条学生记录，详细信息如下：");
d.add(ti41,BorderLayout.NORTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "添加教师用户":
d.removeAll();
d.setLayout(null);
JLabel lab0t=new JLabel("账号：");
JTextField idt=new JTextField(5);
JLabel lab1t=new JLabel("密码：");
JTextField passwordt=new JTextField(5);
JLabel lab2t=new JLabel("姓名");
JTextField namet=new JTextField(5);
JButton subt=new JButton("添加");
tipTop=new JLabel("请输入要添加的教师信息：");
tipTop.setBounds(275, 120, 200, 30);
JLabel rest=new JLabel();
lab0t.setBounds(275, 150, 50, 30);
idt.setBounds(325, 150, 200, 30);
lab1t.setBounds(275, 190, 50, 30);
passwordt.setBounds(325, 190, 200, 30);
lab2t.setBounds(275, 230, 50, 30);
namet.setBounds(325, 230, 200, 30);
subt.setBounds(275, 270, 250, 30);
rest.setBounds(360, 310, 250, 30);
d.add(tipTop);
d.add(lab0t);
d.add(idt);
d.add(lab1t);
d.add(passwordt);
d.add(lab2t);
d.add(namet);
d.add(subt);
d.add(rest);
subt.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jdbc.addTeacher(idt.getText(), passwordt.getText(), namet.getText());
rest.setText("添加成功！");
}});
d.setVisible(true);
d.updateUI();
break;
case "删除教师用户":
d.removeAll();
List<User> listTeas=jdbc.allTeacherInfo();
String[][] teas=new String[listTeas.size()][];
for(int i=0;i<listTeas.size();i++) {
teas[i]=listTeas.get(i).getStringArrayTea();
}
JTable tableTea=new JTable(teas,teaTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableTea.setDefaultRenderer(Object.class, cr);
tableTea.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tableTea),BorderLayout.CENTER);
JLabel tip11=new JLabel("共有 "+teas.length+"条教师记录，详细信息如下：");
d.add(tip11,BorderLayout.NORTH);
JPanel ps1=new JPanel();
JLabel tip011=new JLabel("请选择要删除的教师的id（删除后将无法恢复，请谨慎操作）：");
JButton del1=new JButton("删除");
JLabel delResult1=new JLabel();
ps1.setLayout(new GridLayout(5,1,10,10));
JComboBox teaIds1=new JComboBox();
List list1=jdbc.allTeacherId();
for(int i=0;i<list1.size();i++) {
teaIds1.addItem(list1.get(i));
}
ps1.add(tip011);
ps1.add(teaIds1);
ps1.add(del1);
ps1.add(delResult1);
d.add(ps1,BorderLayout.SOUTH);
del1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jdbc.delTeacher((String)teaIds1.getSelectedItem());
delResult1.setText("删除教师"+(String)teaIds1.getSelectedItem()+"信息成功！");
}} );
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "重置教师密码":
f.setResizable(false);
d.removeAll();
listTeas=jdbc.allTeacherInfo();
teas=new String[listTeas.size()][];
for(int i=0;i<listTeas.size();i++) {
teas[i]=listTeas.get(i).getStringArrayTea();
}
tableTea=new JTable(teas,teaTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableTea.setDefaultRenderer(Object.class, cr);
tableTea.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tableTea),BorderLayout.CENTER);
tip11=new JLabel("共有 "+teas.length+"条教师记录，详细信息如下：");
d.add(tip11,BorderLayout.NORTH);
ps1=new JPanel();
tip011=new JLabel("请选择要重置密码的的教师id：");
del1=new JButton("重置");
tip=new JLabel("请输入新密码：");
psd=new JTextField(5);
delResult1=new JLabel();
ps1.setLayout(new GridLayout(5,1,10,10));
teaIds1=new JComboBox();
list1=jdbc.allTeacherId();
for(int i=0;i<list1.size();i++) {
teaIds1.addItem(list1.get(i));
}
ps1.add(tip011);
ps1.add(teaIds1);
ps1.add(tip);
ps1.add(psd);
ps1.add(del1);
ps1.add(delResult1);
d.add(ps1,BorderLayout.SOUTH);
del1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(!psd.getText().replaceAll(" ", "").equals("")) {
jdbc.updUserPassword(psd.getText(), (String)teaIds1.getSelectedItem());;
delResult1.setText("重置教师"+(String)teaIds1.getSelectedItem()+"密码成功！");
}else{
delResult1.setText("重置后的密码不能为空！");
}
}} );
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "修改教师姓名":
f.setResizable(false);
d.removeAll();
listTeas=jdbc.allTeacherInfo();
teas=new String[listTeas.size()][];
for(int i=0;i<listTeas.size();i++) {
teas[i]=listTeas.get(i).getStringArrayTea();
}
tableTea=new JTable(teas,teaTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableTea.setDefaultRenderer(Object.class, cr);
tableTea.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tableTea),BorderLayout.CENTER);
tip11=new JLabel("共有 "+teas.length+"条教师记录，详细信息如下：");
d.add(tip11,BorderLayout.NORTH);
ps1=new JPanel();
tip011=new JLabel("请选择要修改姓名的的教师id：");
del1=new JButton("确认");
tip=new JLabel("请输入新的教师姓名：");
psd=new JTextField(5);
delResult1=new JLabel();
ps1.setLayout(new GridLayout(5,1,10,10));
teaIds1=new JComboBox();
list1=jdbc.allTeacherId();
for(int i=0;i<list1.size();i++) {
teaIds1.addItem(list1.get(i));
}
ps1.add(tip011);
ps1.add(teaIds1);
ps1.add(tip);
ps1.add(psd);
ps1.add(del1);
ps1.add(delResult1);
d.add(ps1,BorderLayout.SOUTH);
del1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(!psd.getText().replaceAll(" ", "").equals("")) {
jdbc.updUserName(psd.getText(), (String)teaIds1.getSelectedItem());;
delResult1.setText("修改教师"+(String)teaIds1.getSelectedItem()+"姓名成功！");
}else{
delResult1.setText("修改后的姓名不能为空！");
}
}} );
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "所有教师用户":
d.removeAll();
List<User> listTeas1=jdbc.allTeacherInfo();
String[][] teas1=new String[listTeas1.size()][];
for(int i=0;i<listTeas1.size();i++) {
teas1[i]=listTeas1.get(i).getStringArrayTea();
}
JTable tableTea1=new JTable(teas1,teaTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableTea1.setDefaultRenderer(Object.class, cr);
tableTea1.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tableTea1),BorderLayout.CENTER);
//JPanel
JLabel tip111=new JLabel("共有 "+teas1.length+"条教师记录，详细信息如下：");
d.add(tip111,BorderLayout.NORTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "切换用户":
d.removeAll();
System.out.println("点击切换用户");
login.setVisible(true);
f.setVisible(false);
d.updateUI();
break;
case "添加班级":
d.removeAll();
List<String> allClass=jdbc.allClass();
String[][] sClass=new String[allClass.size()][];
String[] temp=null;
for(int i=0;i<allClass.size();i++) {
temp=new String[1];
temp[0]=allClass.get(i);
sClass[i]=temp;
}
JTable tClass=new JTable(sClass,classTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tClass.setDefaultRenderer(Object.class, cr);
tClass.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tClass),BorderLayout.CENTER);
JLabel addResult=new JLabel("所有班级信息如下： ");
d.add(addResult,BorderLayout.NORTH);
JPanel dp1=new JPanel();
dp1.setLayout(new GridLayout(5,1,10,10));
JLabel tip00=new JLabel("请输入要添加的班级名称： ");
JTextField addClassName=new JTextField(10);
JButton submitAdd=new JButton("添加");
JLabel addResu=new JLabel();
submitAdd.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jdbc.addClass(addClassName.getText());
addResu.setText("班级添加成功！");
dp1.updateUI();
}
});
dp1.add(tip00);
dp1.add(addClassName);
dp1.add(submitAdd);
dp1.add(addResu);
d.add(dp1,BorderLayout.SOUTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "查看所有班级":
d.removeAll();
allClass=jdbc.allClass();
sClass=new String[allClass.size()][];
temp=null;
for(int i=0;i<allClass.size();i++) {
temp=new String[1];
temp[0]=allClass.get(i);
sClass[i]=temp;
}
tClass=new JTable(sClass,classTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tClass.setDefaultRenderer(Object.class, cr);
tClass.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tClass),BorderLayout.CENTER);
addResult=new JLabel("所有班级信息如下： ");
d.add(addResult,BorderLayout.NORTH);
d.updateUI();
break;
case "删除班级":
d.removeAll();
JComboBox selectClass=new JComboBox();
allClass=jdbc.allClass();
for(int i=0;i<allClass.size();i++) {
selectClass.addItem(allClass.get(i));
}
sClass=new String[allClass.size()][];
temp=null;
for(int i=0;i<allClass.size();i++) {
temp=new String[1];
temp[0]=allClass.get(i);
sClass[i]=temp;
}
tClass=new JTable(sClass,classTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tClass.setDefaultRenderer(Object.class, cr);
tClass.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tClass),BorderLayout.CENTER);
addResult=new JLabel("所有班级信息如下： ");
d.add(addResult,BorderLayout.NORTH);
dp1=new JPanel();
dp1.setLayout(new GridLayout(5,1,10,10));
tip=new JLabel("请选择要删除的班级：");
submitAdd=new JButton("删除");
addResu=new JLabel();
submitAdd.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jdbc.delClass((String)selectClass.getSelectedItem());;
addResu.setText("班级删除成功！");
dp1.updateUI();
}
});
dp1.add(tip);
dp1.add(selectClass);
dp1.add(submitAdd);
dp1.add(addResu);
d.add(dp1,BorderLayout.SOUTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "修改班级名称":
d.removeAll();
selectClass=new JComboBox();
allClass=jdbc.allClass();
for(int i=0;i<allClass.size();i++) {
selectClass.addItem(allClass.get(i));
}
sClass=new String[allClass.size()][];
temp=null;
for(int i=0;i<allClass.size();i++) {
temp=new String[1];
temp[0]=allClass.get(i);
sClass[i]=temp;
}
tClass=new JTable(sClass,classTitle);
cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tClass.setDefaultRenderer(Object.class, cr);
tClass.setEnabled(false);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tClass),BorderLayout.CENTER);
addResult=new JLabel("所有班级信息如下： ");
d.add(addResult,BorderLayout.NORTH);
dp1=new JPanel();
dp1.setLayout(new GridLayout(6,1,10,10));
tip=new JLabel("请选择要修改的班级：");
submitAdd=new JButton("修改");
tip2=new JLabel("请输入修改后的班级名称：");
JTextField input=new JTextField(5);
addResu=new JLabel();
submitAdd.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(input.getText().replaceAll(" ", "")!="") {
jdbc.updClassName((String)selectClass.getSelectedItem(), input.getText());
addResu.setText("班级名称修改成功！");
}else {
addResu.setText("修改后的班级名称不能为空！");
}
dp1.updateUI();
}
});
dp1.add(tip);
dp1.add(selectClass);
dp1.add(tip2);
dp1.add(input);
dp1.add(submitAdd);
dp1.add(addResu);
d.add(dp1,BorderLayout.SOUTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "退出系统":
System.out.println("退出系统");
System.exit(0);
break;
}
}
}
教师
package UI;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
//import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import bean.Grade;
import bean.SubjectInfo;
import bean.User;
import sql.Dao;
public class Teacherpanel implements ActionListener {
JFrame f=null;
User user=null;
Dao jdbc=null;
JFrame login;
JPanel d=new JPanel();
String old;
String[] gradeTitle= {"学号","课程名称","成绩"};
int screenWidth = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
int screenHeight = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();
public Teacherpanel(User user,JFrame login,Dao jdbc) {
this.login=login;
this.user=user;
this.jdbc=jdbc;
f=new JFrame("教师端："+user.getName()+"欢迎您的使用!");
f.setLocation((screenWidth-800)/2, (screenHeight-600)/2);
f.setLayout(new GridLayout(1,1));
f.setSize(800, 600);
f.add(d,BorderLayout.CENTER);
JLabel a=new JLabel(getImageIcon("F:/1/bin/Studentsystem/Images",800, 600));
d.add(a);
JMenuBar menuBar = new JMenuBar();
// m1
JMenu m1 = new JMenu("查看成绩");
JMenuItem m11 = new JMenuItem("查看某学生所有课程的成绩");
JMenuItem m12 = new JMenuItem("查看本课程各班的成绩");
JMenuItem m13 = new JMenuItem("最高分学生信息");
JMenuItem m14 = new JMenuItem("最低分学生信息");
JMenuItem m15 = new JMenuItem("本课程不及格学生");
m1.add(m11);
m1.add(m12);
m1.add(m13);
m1.add(m14);
m1.add(m15);
m11.addActionListener(this);
m12.addActionListener(this);
m13.addActionListener(this);
m14.addActionListener(this);
m15.addActionListener(this);
JMenu m2 = new JMenu("更新成绩");
JMenuItem m21 = new JMenuItem("录入本课程各班的成绩");
JMenuItem m22 = new JMenuItem("修改某学生本课程的成绩");
m2.add(m21);
m2.add(m22);
m21.addActionListener(this);
m22.addActionListener(this);
JMenu m3 = new JMenu("账户安全");
JMenuItem m31 = new JMenuItem("修改密码");
m3.add(m31);
m31.addActionListener(this);
JMenu m6 = new JMenu("更多选项");
JMenuItem m61 = new JMenuItem("切换用户");
JMenuItem m62= new JMenuItem("退出系统");
m6.add(m61);
m6.add(m62);
m61.addActionListener(this);
m62.addActionListener(this);
menuBar.add(m1);
menuBar.add(m2);
menuBar.add(m3);
menuBar.add(m6);
f.setJMenuBar(menuBar);
f.setVisible(true);
}
public ImageIcon getImageIcon( String path, int width, int height) {
ImageIcon icon = new ImageIcon(path);
icon.setImage(icon.getImage().getScaledInstance(width, height,icon.getImage().SCALE_DEFAULT));
return icon;
}
@Override
public void actionPerformed(ActionEvent e) {
switch(e.getActionCommand()) {
case "录入本课程各班的成绩":
d.removeAll();
List<SubjectInfo> infor=jdbc.getSubjectClass(user.getId());
d.setLayout(new BorderLayout());
JComboBox box=new JComboBox();
JButton submit1=new JButton("确认");
JPanel p2=new JPanel();
p2.setLayout(new GridLayout(1,1));
d.add(new JScrollPane(p2),BorderLayout.CENTER);
submit1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
p2.removeAll();
String re=(String)box.getSelectedItem();
String[] inf=re.split("--");
List<Grade>subInfo=jdbc.setSubjectGrade(inf[1], inf[0]);
String[][] dataSub=new String[subInfo.size()][];
for(int i=0;i<subInfo.size();i++) {
dataSub[i]=subInfo.get(i).getStringArray();
}
DefaultTableModel model = new DefaultTableModel(dataSub,gradeTitle) {
public boolean isCellEditable(int row,int column){
if(column == 2){
return true;
}else{
return false;
}
}
};
model.isCellEditable(0, 3);
JTable table2=new JTable(model);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table2.setDefaultRenderer(Object.class, cr);
ListSelectionModel model1 = table2.getSelectionModel();
//设置只能选中单行
table2.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
model1.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
int lie=table2.getSelectedColumn();
int han=table2.getSelectedRow();
if(e.getFirstIndex()!=e.getLastIndex()) {
System.out.println("变更后的数据"+table2.getValueAt(e.getFirstIndex(),table2.getSelectedColumn() ));
System.out.println("--"+(String)table2.getValueAt(e.getFirstIndex(),0)+
(String)table2.getValueAt(e.getFirstIndex(),1)+
(String)table2.getValueAt(e.getFirstIndex(),2));
String id=(String)table2.getValueAt(e.getFirstIndex(),0);
String className=(String)table2.getValueAt(e.getFirstIndex(),1);
String score= (String)table2.getValueAt(e.getFirstIndex(),2);
if(score!=null) {
jdbc.updStuGrade(id, className,score);
}
}
System.out.println(table2.getValueAt(han, lie));
}
});
p2.add(new JScrollPane(table2),BorderLayout.CENTER);
p2.updateUI();
}});
for(int i=0;i<infor.size();i++) {
box.addItem(infor.get(i).getSubjectName()+"--"+infor.get(i).getClassName());
}
JLabel tipDetial=new JLabel((String)box.getSelectedItem()+"成绩信息如下： ");
JPanel p1=new JPanel();
p1.setLayout(new GridLayout(3,1,10,10));
p1.add(tipDetial);
p1.add(box);
p1.add(submit1);
d.add(p1,BorderLayout.NORTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "修改某学生本课程的成绩":
d.removeAll();
infor=jdbc.getSubjectClass(user.getId());
d.setLayout(new BorderLayout());
box=new JComboBox();
JButton submit2=new JButton("确认");
p2=new JPanel();
p2.setLayout(new GridLayout(1,1));
d.add(new JScrollPane(p2),BorderLayout.CENTER);
for(int i=0;i<infor.size();i++) {
box.addItem(infor.get(i).getSubjectName()+"--"+infor.get(i).getClassName());
}
tipDetial=new JLabel("请先选择班级课程信息");
p1=new JPanel();
p1.setLayout(new GridLayout(3,1,10,10));
p1.add(tipDetial);
p1.add(box);
p1.add(submit2);
d.add(p1,BorderLayout.NORTH);
JPanel p3=new JPanel();
p3.setLayout(new GridLayout(3,1,10,10));
JPanel p4=new JPanel();
JLabel tipId=new JLabel("学号：");
JComboBox idSelect=new JComboBox();
idSelect.addItem("请先选择班级课程信息");
String info=(String)box.getSelectedItem();
System.out.println("现在的班级课程选择器"+info);
String[] infoArr=info.split("--");
// List<String>ids=jdbc.classStuId(infoArr[1]);
// for(int i=0;i<ids.size();i++) {
// idSelect.addItem(ids.get(i));
// }
JLabel tipSub=new JLabel();
JLabel tipScore=new JLabel("分数：");
JTextField score=new JTextField(5);
JButton submit=new JButton("修改");
JLabel result=new JLabel();
//学号选择确认
submit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String infor=(String)box.getSelectedItem();
String[] infoArr=infor.split("--");
jdbc.updStuGrade((String)idSelect.getSelectedItem(),infoArr[0] , score.getText());
result.setText("成绩修改成功！");
p3.updateUI();
}});
//班级课程选择确认
submit2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
p2.removeAll();
idSelect.removeAllItems();
String info=(String)box.getSelectedItem();
System.out.println("现在的班级课程选择器"+info);
String[] infoArr=info.split("--");
List<String>ids=jdbc.classStuId(infoArr[1]);
for(int i=0;i<ids.size();i++) {
idSelect.addItem(ids.get(i));
}
tipDetial.setText((String)box.getSelectedItem()+"成绩信息如下： ");
tipSub.setText("课程名称："+infoArr[0]);
List<Grade>subInfo=jdbc.setSubjectGrade(infoArr[1], infoArr[0]);
String[][] dataSub=new String[subInfo.size()][];
for(int i=0;i<subInfo.size();i++) {
dataSub[i]=subInfo.get(i).getStringArray();
}
System.out.println("数据长度--"+dataSub.length);
JTable table2=new JTable(dataSub,gradeTitle);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table2.setDefaultRenderer(Object.class, cr);
table2.setEnabled(false);
p2.add(new JScrollPane(table2),BorderLayout.CENTER);
p1.updateUI();
p2.updateUI();
p4.updateUI();
p3.updateUI();
}});
p4.add(tipId);
p4.add(idSelect);
p4.add(tipSub);
p4.add(tipScore);
p4.add(score);
p4.add(submit);
p3.add(p4);
p3.add(result);
d.add(p3,BorderLayout.SOUTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "查看某学生所有课程的成绩":
d.removeAll();
d.setLayout(new BorderLayout());
JComboBox stuSelect=new JComboBox();
JPanel p11=new JPanel();
List<String>ids=jdbc.allStuId();
for(int i=0;i<ids.size();i++) {
stuSelect.addItem(ids.get(i));
}
p11.setLayout(new GridLayout(4,1,10,10));
JLabel tip=new JLabel("请选择学号：");
JButton submit4=new JButton("确认");
JPanel ptable=new JPanel();
ptable.setLayout(new GridLayout(1,1));
JLabel ti41=new JLabel();
p11.add(tip);
p11.add(stuSelect);
p11.add(submit4);
p11.add( ti41);
d.add(p11,BorderLayout.NORTH);
submit4.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
tip.setText("学号为"+(String)stuSelect.getSelectedItem()+"的学生相关记录如下：");
ptable.removeAll();
List<Grade> liststus1=jdbc.selfGrade((String)stuSelect.getSelectedItem());
User user=jdbc.oneInfo((String)stuSelect.getSelectedItem());
String[][] stus1=new String[liststus1.size()][5];
String[] title= {"学号","姓名","班级","课程名称","分数"};
System.out.println("+++++="+stus1.length);
for(int i=0;i<liststus1.size();i++) {
stus1[i][0]=liststus1.get(i).getStudentId();
stus1[i][1]=user.getName();
stus1[i][2]=user.getClassName();
stus1[i][3]=liststus1.get(i).getSubjectName();
stus1[i][4]=liststus1.get(i).getScore();
}
JTable tableStu1=new JTable(stus1,title);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableStu1.setDefaultRenderer(Object.class, cr);
tableStu1.setEnabled(false);
ptable.add(new JScrollPane(tableStu1));
ptable.updateUI();
p11.updateUI();
ti41.setText("共有 "+stus1.length+"门课程记录，详细信息如下：");
p11.updateUI();
}
});
d.add(new JScrollPane(ptable),BorderLayout.CENTER);
//JPanel
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "查看本课程各班的成绩":
List<SubjectInfo> infor1=jdbc.getSubjectClass(user.getId());
d.removeAll();
d.setLayout(new BorderLayout());
JComboBox box1=new JComboBox();
JButton submit11=new JButton("确认");
JPanel p21=new JPanel();
p21.setLayout(new GridLayout(1,1));
d.add(new JScrollPane(p21),BorderLayout.CENTER);
JLabel tipDetial1=new JLabel("请先选择班级和课程：");
submit11.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
p21.removeAll();
tipDetial1.setText((String)box1.getSelectedItem()+"成绩信息如下： ");
String re=(String)box1.getSelectedItem();
String[] inf=re.split("--");
List<Grade>subInfo=jdbc.setSubjectGrade(inf[1], inf[0]);
String[][] dataSub=new String[subInfo.size()][];
for(int i=0;i<subInfo.size();i++) {
dataSub[i]=subInfo.get(i).getStringArray();
}
JTable table2=new JTable(dataSub,gradeTitle);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table2.setDefaultRenderer(Object.class, cr);
table2.setEnabled(false);
p21.add(new JScrollPane(table2),BorderLayout.CENTER);
p21.updateUI();
}});
for(int i=0;i<infor1.size();i++) {
box1.addItem(infor1.get(i).getSubjectName()+"--"+infor1.get(i).getClassName());
}
JPanel p111=new JPanel();
p111.setLayout(new GridLayout(3,1,10,10));
p111.add(tipDetial1);
p111.add(box1);
p111.add(submit11);
d.add(p111,BorderLayout.NORTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "最高分学生信息":
d.removeAll();
//班级课程选择器
List<SubjectInfo> infos=jdbc.getSubjectClass(user.getId());
JComboBox csInfo=new JComboBox();
for(int i=0;i<infos.size();i++) {
csInfo.addItem(infos.get(i).getSubjectName()+"--"+infos.get(i).getClassName());
}
//
JPanel Ctable=new JPanel();
Ctable.setLayout(new GridLayout(1,1));
d.setLayout(new BorderLayout());
JPanel nor=new JPanel();
nor.setLayout(new GridLayout(3,1,10,10));
JLabel ti=new JLabel("请先选择班级课程信息：");
JButton b=new JButton("确认");
nor.add(csInfo);
nor.add(b);
nor.add(ti);
d.add(nor,BorderLayout.NORTH);
b.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
Ctable.removeAll();
String choose=(String)csInfo.getSelectedItem();
String[] sinfo=choose.split("--");
List<Grade> grade=jdbc.getSubjectMax(sinfo[0], sinfo[1]);
String[][] stus1=new String[grade.size()][5];
String[] title= {"学号","姓名","班级","课程名称","分数"};
for(int i=0;i<grade.size();i++) {
User user=jdbc.oneInfo(grade.get(i).getStudentId());
stus1[i][0]=grade.get(i).getStudentId();
stus1[i][1]=user.getName();
stus1[i][2]=user.getClassName();
stus1[i][3]=grade.get(i).getSubjectName();
stus1[i][4]=grade.get(i).getScore();
}
ti.setText(sinfo[1]+sinfo[0]+"最高分学生信息如下：");
JTable tab=new JTable(stus1,title);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tab.setDefaultRenderer(Object.class, cr);
tab.setEnabled(false);
Ctable.add(new JScrollPane(tab));
Ctable.updateUI();
nor.updateUI();
}});
d.add(new JScrollPane(Ctable),BorderLayout.CENTER);
//JPanel
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "最低分学生信息":
d.removeAll();
//班级课程选择器
List<SubjectInfo> infos1=jdbc.getSubjectClass(user.getId());
JComboBox csInfo1=new JComboBox();
for(int i=0;i<infos1.size();i++) {
csInfo1.addItem(infos1.get(i).getSubjectName()+"--"+infos1.get(i).getClassName());
}
//
JPanel Ctable1=new JPanel();
Ctable1.setLayout(new GridLayout(1,1));
d.setLayout(new BorderLayout());
JPanel nor1=new JPanel();
nor1.setLayout(new GridLayout(3,1,10,10));
JLabel ti1=new JLabel("请先选择班级课程信息：");
JButton b1=new JButton("确认");
nor1.add(csInfo1);
nor1.add(b1);
nor1.add(ti1);
d.add(nor1,BorderLayout.NORTH);
b1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
Ctable1.removeAll();
String choose=(String)csInfo1.getSelectedItem();
String[] sinfo=choose.split("--");
List<Grade> grade=jdbc.getSubjectMin(sinfo[0], sinfo[1]);
String[][] stus1=new String[grade.size()][5];
String[] title= {"学号","姓名","班级","课程名称","分数"};
for(int i=0;i<grade.size();i++) {
User user=jdbc.oneInfo(grade.get(i).getStudentId());
stus1[i][0]=grade.get(i).getStudentId();
stus1[i][1]=user.getName();
stus1[i][2]=user.getClassName();
stus1[i][3]=grade.get(i).getSubjectName();
stus1[i][4]=grade.get(i).getScore();
}
ti1.setText(sinfo[1]+sinfo[0]+"最低分学生信息如下：");
JTable tab1=new JTable(stus1,title);
tab1.setEnabled(false);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tab1.setDefaultRenderer(Object.class, cr);
Ctable1.add(new JScrollPane(tab1));
nor1.updateUI();
Ctable1.updateUI();
}});
d.add(new JScrollPane(Ctable1),BorderLayout.CENTER);
//JPanel
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "本课程不及格学生":
List<SubjectInfo> infor01=jdbc.getSubjectClass(user.getId());
d.removeAll();
d.setLayout(new BorderLayout());
JComboBox box01=new JComboBox();
JButton submit011=new JButton("确认");
JPanel p021=new JPanel();
p021.setLayout(new GridLayout(1,1));
d.add(new JScrollPane(p021),BorderLayout.CENTER);
JLabel tipDetial01=new JLabel("请先选择班级和课程：");
submit011.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
p021.removeAll();
tipDetial01.setText((String)box01.getSelectedItem()+"不及格学生信息如下： ");
String re=(String)box01.getSelectedItem();
String[] inf=re.split("--");
List<Grade>subInfo=jdbc.getSubjectFail(inf[0], inf[1]);
String[][] dataSub=new String[subInfo.size()][];
for(int i=0;i<subInfo.size();i++) {
dataSub[i]=subInfo.get(i).getStringArray();
}
JTable table2=new JTable(dataSub,gradeTitle);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table2.setDefaultRenderer(Object.class, cr);
table2.setEnabled(false);
p021.add(new JScrollPane(table2),BorderLayout.CENTER);
p021.updateUI();
}});
for(int i=0;i<infor01.size();i++) {
box01.addItem(infor01.get(i).getSubjectName()+"--"+infor01.get(i).getClassName());
}
JPanel p0111=new JPanel();
p0111.setLayout(new GridLayout(3,1,10,10));
p0111.add(tipDetial01);
p0111.add(box01);
p0111.add(submit011);
d.add(p0111,BorderLayout.NORTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "修改密码":
d.removeAll();
String[][] data=new String[1][2];
String[] titles= {"账号","姓名"};
data[0][0]=user.getId();
data[0][1]=user.getName();
JTable table=new JTable(data,titles);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(table),BorderLayout.CENTER);
//JPanel
JPanel p=new JPanel();
p.setLayout(new GridLayout(5,6,10,10));
JLabel tip1=new JLabel(" 原密码:");
JTextField oldPsd=new JTextField(10);
JLabel tip2=new JLabel(" 新密码:");
JTextField newPsd=new JTextField(10);
submit=new JButton("修改");
JButton back1=new JButton("返回上一级");
result=new JLabel();
p.add(tip1);
p.add(oldPsd);
p.add(tip2);
p.add(newPsd);
p.add(submit);
p.add(back1);
p.add(result);
submit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(oldPsd.getText().equals(user.getPassword())) {
jdbc.updUserPassword(newPsd.getText(), user.getId());
result.setText("密码修改成功！");
user.setPassword(newPsd.getText());
p.updateUI();
}else {
result.setText("原密码输入错误，密码修改失败！");
p.updateUI();
}
}});
back1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
d.setVisible(false);
}} );
JLabel tip4=new JLabel("尊敬的"+user.getName()+"，您本人信息的如下： ");
d.add(tip4,BorderLayout.NORTH);
d.add(p,BorderLayout.SOUTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
break;
case "切换用户":
login.setVisible(true);
f.setVisible(false);
break;
case "退出系统":
System.out.println("退出系统");
System.exit(0);
break;
}
}
}
学生
package UI;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.util.List;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.event.MenuEvent;
import javax.swing.event.MenuListener;
import javax.swing.table.DefaultTableCellRenderer;
import bean.Grade;
import bean.User;
import sql.Dao;
public class Studentpanel implements ActionListener {
JFrame f=null;
User user=null;
JFrame login=null;
Dao jdbc=null;
JPanel d=new JPanel();
int screenWidth = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
int screenHeight = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();
public Studentpanel(User user,JFrame login,Dao jdbc) {
this.login=login;
this.user=user;
this.jdbc=jdbc;
f=new JFrame("学生端："+user.getName()+"欢迎您的使用!");
f.setLocation((screenWidth-800)/2, (screenHeight-600)/2);
f.setLayout(new GridLayout(1,1));
f.setSize(800, 600);
f.add(d,BorderLayout.CENTER);
JLabel a=new JLabel(getImageIcon("F:/1/bin/Studentsystem/Images",800, 600));
d.add(a);
JMenuBar menuBar = new JMenuBar();
JMenu m11 = new JMenu("查询各科成绩");
JMenu m12 = new JMenu("修改密码");
m11.setMnemonic(KeyEvent.VK_T);
m12.setMnemonic(KeyEvent.VK_T);
JMenu m6 = new JMenu("更多选项");
JMenuItem m61 = new JMenuItem("切换用户");
JMenuItem m62= new JMenuItem("退出系统");
m6.add(m61);
m6.add(m62);
m61.addActionListener(this);
m62.addActionListener(this);
menuBar.add(m11);
menuBar.add(m12);
menuBar.add(m6);
m11.addMenuListener(new MenuListener() {
@Override
public void menuSelected(MenuEvent e) {
f.setResizable(true);
d.removeAll();
List<Grade> liststus1=jdbc.selfGrade(user.getId());
String[][] stus1=new String[liststus1.size()][5];
String[] title= {"学号","姓名","班级","课程名称","分数"};
for(int i=0;i<liststus1.size();i++) {
stus1[i][0]=liststus1.get(i).getStudentId();
stus1[i][1]=user.getName();
stus1[i][2]=user.getClassName();
stus1[i][3]=liststus1.get(i).getSubjectName();
stus1[i][4]=liststus1.get(i).getScore();
}
JTable tableStu1=new JTable(stus1,title);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
tableStu1.setDefaultRenderer(Object.class, cr);
d.setLayout(new BorderLayout());
d.add(new JScrollPane(tableStu1),BorderLayout.CENTER);
//JPanel
JLabel ti41=new JLabel("共有 "+stus1.length+"门课程记录，详细信息如下：");
d.add(ti41,BorderLayout.NORTH);
d.setSize(800,400);
d.setVisible(true);
d.updateUI();
}
@Override
public void menuDeselected(MenuEvent e) {
}
@Override
public void menuCanceled(MenuEvent e) {
}});
m12.addMenuListener(new MenuListener() {
@Override
public void menuSelected(MenuEvent e) {
f.setResizable(false);
d.removeAll();
d.setLayout(null);
String[][] data=new String[1][3];
String[] titles= {"账号","姓名","班级"};
data[0][0]=user.getId();
data[0][1]=user.getName();
data[0][2]=user.getClassName();
JTable table=new JTable(data,titles);
DefaultTableCellRenderer cr = new DefaultTableCellRenderer();
cr.setHorizontalAlignment(JLabel.CENTER);
table.setDefaultRenderer(Object.class, cr);
//JPanel
JLabel tip4=new JLabel("尊敬的"+user.getName()+"，您正在进行修改密码操作： ");
tip4.setBounds(250, 200, 800, 30);
JLabel tip1=new JLabel(" 原密码:");
JTextField oldPsd=new JTextField(10);
JLabel tip2=new JLabel(" 新密码:");
JTextField newPsd=new JTextField(10);
JButton submit=new JButton("修改");
JLabel result=new JLabel();
tip1.setBounds(250, 250, 60, 30);
oldPsd.setBounds(310, 250, 200, 30);
tip2.setBounds(250, 290, 60, 30);
newPsd.setBounds(310, 290, 200, 30);
submit.setBounds(250, 330, 260, 30);
result.setBounds(250, 360, 200, 30);
d.add(tip1);
d.add(oldPsd);
d.add(tip2);
d.add(newPsd);
d.add(submit);
d.add(result);
submit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(oldPsd.getText().equals(user.getPassword())) {
jdbc.updUserPassword(newPsd.getText(), user.getId());
result.setText("密码修改成功！");
user.setPassword(newPsd.getText());
d.updateUI();
}else {
result.setText("原密码输入错误，密码修改失败！");
d.updateUI();
}
}});
d.add(tip4);
d.updateUI();
}
@Override
public void menuDeselected(MenuEvent e) {
}
@Override
public void menuCanceled(MenuEvent e) {
}});
f.setJMenuBar(menuBar);
f.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
switch(e.getActionCommand()) {
case "退出系统":
f.setResizable(true);
System.out.println("退出系统");
System.exit(0);
break;
case "切换用户":
f.setResizable(true);
login.setVisible(true);
f.setVisible(false);
break;
}
}
public ImageIcon getImageIcon( String path, int width, int height) {
ImageIcon icon = new ImageIcon(path);
icon.setImage(icon.getImage().getScaledInstance(width, height,icon.getImage().SCALE_DEFAULT));
return icon;
}
}
数据库导入
package sql;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import bean.Grade;
import bean.SubjectInfo;
import bean.User;
public class Dao {
String hostDatabase = "jdbc:mysql://localhost:3306/java_system?characterEncoding=utf8";
String userName = "root";
String password = "746810";
String driverName = "com.mysql.jdbc.Driver";
Connection con = null;
Statement state = null;
public Dao() {
try {
Class.forName(driverName) ;
con = DriverManager.getConnection(hostDatabase, userName, password);
state = con.createStatement();
System.out.println("创建数据库连接成功！！");
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 发送登录请求
* @param count
* @param password
* @return
*/
public User sendLogin(String count,String password) {
User user=null;
String sql="select * from user where id=? and password=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, count);
pre.setString(2, password);
ResultSet set=pre.executeQuery();
while(set.next()) {
user=new User();
user.setId(set.getString("id"));
user.setPassword(set.getString("password"));
user.setName(set.getString("name"));
user.setType(set.getString("type"));
user.setClassName(set.getString("class"));
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return user;
}
/**
* 增加课程
* @param subjectName 课程名称
* @param className 授课班级
* @param teacherId 教师编号
*/
public void addSubject(String subjectName,String className,String teacherId) {
String sql = "insert into subject values(?,?,?)";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, subjectName);
pre.setString(2, className);
pre.setString(3, teacherId);
pre.executeUpdate();
//grade表中对应生成记录
addClassGradeRecord(className,subjectName);
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 删除课程
* @param con 连接实例
* @param subjectName 课程名称
*/
public void delSubject(String className,String subjectName) {
String sql = "delete from subject where subject_name=? and class_name=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, subjectName);
pre.setString(2, className);
pre.executeUpdate();
delClassGradeRecord(className,subjectName);
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 修改课程信息，只提供修改课程名称和授课教师编号
* @param con 连接实例
* @param oSubName 原来的课程名
* @param nSubName 修改后的课程名
* @param className 修改后的班级名
* @param teacherId 修改后的教师编号
*/
public void updSubject(SubjectInfo old,SubjectInfo snew) {
String sql = "update subject set "
+ "subject_name=?,"
+ "teacher_id=?"
+ "where subject_name=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, snew.getSubjectName());
pre.setString(2, snew.getTeacherId());
pre.setString(3, old.getSubjectName());
pre.executeUpdate();
//只修改grade表中的课程名称即可
String sql2 = "update grade set "
+ "subject_name=?"
+ "where subject_name=?";
PreparedStatement pre2=con.prepareStatement(sql2);
pre2.setString(1, snew.getSubjectName());
pre2.setString(2, old.getClassName());
pre2.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
*
* @return 所有的课程信息（包括授课班级和教师id）List
*/
public List allSubInfo() {
List<SubjectInfo> subs=new ArrayList<>();
SubjectInfo sub=null;
String sql="select * from subject ";
try {
PreparedStatement pre=con.prepareStatement(sql);
ResultSet result = pre.executeQuery();
while(result.next()) {
sub=new SubjectInfo();
sub.setSubjectName(result.getString("subject_name"));
sub.setClassName(result.getString("class_name"));
sub.setTeacherId(result.getString("teacher_id"));
subs.add(sub);
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return subs;
}
/**
* 添加学生用户
* @param con
* @param id
* @param password
* @param name
* @param type
* @param className
*/
public void addStu(String id,String password,String name,String className) {
String sql = "insert into user values(?,?,?,?,?)";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, id);
pre.setString(2, password);
pre.setString(3, name);
pre.setString(4, "student");
pre.setString(5, className);
pre.executeUpdate();
//在grade表中生成对应科目记录
addStuSubjectRecord(id,className);
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 添加教师用户
* @param con
* @param id
* @param password
* @param name
* @param className
*/
public void addTeacher(String id,String password,String name) {
String sql = "insert into user values(?,?,?,?,?)";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, id);
pre.setString(2, password);
pre.setString(3, name);
pre.setString(4, "teacher");
pre.setString(5, null);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 添加班级
* @param className
*/
public void addClass(String className) {
String sql = "insert into class values(?)";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, className);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 添加学生用户时在grade表中生成对应科目记录
* @param id
* @param className
*/
public void addStuSubjectRecord(String id, String className) {
System.out.println("执行addStuSubjectRecord"+className);
String sql="select subject_name from subject where class_name=? ";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, className);
ResultSet result = pre.executeQuery();
while(result.next()) {
String name=result.getString("subject_name");
System.out.println("课程名"+name);
String sql2 = "insert into grade(student_id,subject_name) values(?,?)";
PreparedStatement pre2=con.prepareStatement(sql2);
pre2.setString(1, id);
pre2.setString(2, name);
pre2.executeUpdate();
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
/**
* 删除课程时在该课程对应的班级学生在grade表中删除对应的课程成绩的记录
* @param id
* @param className
* @param subjectName
*/
public void delClassGradeRecord( String className,String subjectName) {
String sql="select id from user where class=? ";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, className);
ResultSet result = pre.executeQuery();
while(result.next()) {
String stuId=result.getString("id");
String sql2 = "delete from grade where student_id=? and subject_name=?";
PreparedStatement pre2=con.prepareStatement(sql2);
pre2.setString(1, stuId);
pre2.setString(2,subjectName);
pre2.executeUpdate();
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
/**
* 添加课程时在该课程对应的班级学生在grade表中生成对应的记录
* @param id
* @param className
* @param subjectName
*/
public void addClassGradeRecord( String className,String subjectName) {
String sql="select id from user where class=? ";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, className);
ResultSet result = pre.executeQuery();
while(result.next()) {
String stuId=result.getString("id");
String sql2 = "insert into grade(student_id,subject_name) values(?,?)";
PreparedStatement pre2=con.prepareStatement(sql2);
pre2.setString(1, stuId);
pre2.setString(2,subjectName);
pre2.executeUpdate();
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
/**
* 删除id的学生账号与其对应的所有成绩
* @param con
* @param id
*/
public void delStu(String id) {
String sql = "delete from user where id=?";//删除学生账号
String sql2 = "delete from grade where student_id=?";//删除该学生账号对应的成绩
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, id);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
try {
PreparedStatement pre2=con.prepareStatement(sql2);
pre2.setString(1, id);
pre2.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 删除id的教师账号与其对应的授课课程
* @param con
* @param id
*/
public void delTeacher(String id) {
String sql = "delete from user where id=?";//删除学生账号
String sql2 = "delete from subject where teacher_id=?";//删除该学生账号对应的成绩
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, id);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
try {
PreparedStatement pre=con.prepareStatement(sql2);
pre.setString(1, id);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 删除班级及其所有相关的学生信息
* @param className
*/
public void delClass(String className) {
String sql1 = "delete from grade where student_id in (select id from user where class=? ) ";
String sql2 = "delete from subject where class_name=?";
String sql3 = "delete from user where class=?";
String sql4 = "delete from class where class_name=?";
try {
PreparedStatement pre=con.prepareStatement(sql1);
pre.setString(1, className);
pre.executeUpdate();
pre=con.prepareStatement(sql2);
pre.setString(1, className);
pre.executeUpdate();
pre=con.prepareStatement(sql3);
pre.setString(1, className);
pre.executeUpdate();
pre=con.prepareStatement(sql4);
pre.setString(1, className);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
public void updClassName(String oldClass,String newClass) {
String sql = "update user set class=? where class=? ";
String sql1 = "update subject set class_name=? where class_name=? ";
String sql2= "update class set class_name=? where class_name=? ";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, newClass);
pre.setString(2, oldClass);
pre.executeUpdate();
pre=con.prepareStatement(sql1);
pre.setString(1, newClass);
pre.setString(2, oldClass);
pre.executeUpdate();
pre=con.prepareStatement(sql2);
pre.setString(1, newClass);
pre.setString(2, oldClass);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 修改用户名称
* @param con
* @param name 修改后的名字
* @param id
*/
public void updUserName(String name,String id) {
String sql = "update user set "
+ "name=?"
+ "where id=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, name);
pre.setString(2, id);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* 修改用户密码
* @param con
* @param password 要改成的新密码
* @param id
*/
public void updUserPassword(String password,String id) {
String sql = "update user set "
+ "password=?"
+ "where id=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, password);
pre.setString(2, id);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
*
* @return 所有教师信息
*/
public List allTeacherInfo() {
List<User> users=new ArrayList<>();
User user=null;
String sql="select * from user where type='teacher'";
try {
PreparedStatement pre=con.prepareStatement(sql);
ResultSet result = pre.executeQuery();
while(result.next()) {
user=new User();
user.setId(result.getString("id"));
user.setPassword(result.getString("password"));
user.setName(result.getString("name"));
user.setType(result.getString("type"));
users.add(user);
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return users;
}
/**
*
* @return 所有教师id
*/
public List allTeacherId() {
List<String> teaIds=new ArrayList<>();
String sql="select id from user where type='teacher'";
try {
PreparedStatement pre=con.prepareStatement(sql);
ResultSet result = pre.executeQuery();
while(result.next()) {
teaIds.add(result.getString("id"));
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return teaIds;
}
/**
*
* @return 所有学生id
*/
public List allStuId() {
List<String> stuIds=new ArrayList<>();
String sql="select id from user where type='student'";
try {
PreparedStatement pre=con.prepareStatement(sql);
ResultSet result = pre.executeQuery();
while(result.next()) {
stuIds.add(result.getString("id"));
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return stuIds;
}
/**
*
* @return 所有班级
*/
public List allClass() {
List<String> classes=new ArrayList<>();
String sql="select class_name from class";
try {
PreparedStatement pre=con.prepareStatement(sql);
ResultSet result = pre.executeQuery();
while(result.next()) {
classes.add(result.getString("class_name"));
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return classes;
}
/**
*
* @return 所有课程
*/
public Set allSubject() {
Set<String> subs=new HashSet<>();
String sql="select subject_name from subject";
try {
PreparedStatement pre=con.prepareStatement(sql);
ResultSet result = pre.executeQuery();
while(result.next()) {
subs.add(result.getString("subject_name"));
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return subs;
}
/**
*
* @return 所有学生信息
*/
public List allStuInfo() {
List<User> users=new ArrayList<>();
User user=null;
String sql="select * from user where type='student'";
try {
PreparedStatement pre=con.prepareStatement(sql);
ResultSet result = pre.executeQuery();
while(result.next()) {
user=new User();
user.setId(result.getString("id"));
user.setPassword(result.getString("password"));
user.setName(result.getString("name"));
user.setType(result.getString("type"));
user.setClassName(result.getString("class"));
users.add(user);
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return users;
}
public User oneInfo(String stuId) {
User user=null;
String sql="select * from user where id=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, stuId);
ResultSet result = pre.executeQuery();
if(result.next()) {
user=new User();
user.setId(result.getString("id"));
user.setPassword(result.getString("password"));
user.setName(result.getString("name"));
user.setType(result.getString("type"));
user.setClassName(result.getString("class"));
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return user;
}
/**
* 查询某个所有课程学生成绩
* @param stuId
* @return
*/
public List selfGrade(String stuId) {
List<Grade> grades=new ArrayList<>();
Grade self=null;
String sql="select * from grade where student_id=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1,stuId );
ResultSet result = pre.executeQuery();
while(result.next()) {
self=new Grade();
self.setStudentId(result.getString("student_id"));
self.setSubjectName(result.getString("subject_name"));
self.setScore(result.getString("score"));
grades.add(self);
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return grades;
}
/**
* 一个班级某门课程的成绩
* @param teaId
*/
public List setSubjectGrade(String className,String subjectName) {
List<Grade> grades;//所有课程
List<String> classStuIds=null;
SubjectInfo sub=new SubjectInfo();
classStuIds=classStuId(className);
grades=classGrade(classStuIds,subjectName);
return grades;
}
/**
* 返回某位教师的所有课程
* @param teaId
* @return
*/
public List getSubjectClass(String teaId) {
List<SubjectInfo> subs=new ArrayList<>();//所有课程
SubjectInfo sub=new SubjectInfo();
String sql="select * from subject where teacher_id=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, teaId);
ResultSet result = pre.executeQuery();
while(result.next()) {
sub=new SubjectInfo();
sub.setTeacherId(result.getString("teacher_id"));
sub.setSubjectName(result.getString("subject_name"));
sub.setClassName(result.getString("class_name"));
subs.add(sub);
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return subs;
}
/**
*
* @param stuIds
* @param subject
* @return 一个班级某门课程的成绩
*/
public List classGrade(List<String>stuIds,String subject) {
List<Grade> grades=new ArrayList<>();
Grade one=null;
String sql="select * from grade where student_id=? and subject_name=?";
try {
for(int i=0;i<stuIds.size();i++) {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1,stuIds.get(i) );
pre.setString(2, subject);
ResultSet result = pre.executeQuery();
if(result.next()) {
one=new Grade();
one.setStudentId(result.getString("student_id"));
one.setSubjectName(result.getString("subject_name"));
one.setScore(result.getString("score"));
grades.add(one);
}
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return grades;
}
/**
*
* @return 某班学生id
*/
public List classStuId(String className) {
List<String> stuIds=new ArrayList<>();
String sql="select id from user where type='student' and class=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, className);
ResultSet result = pre.executeQuery();
while(result.next()) {
stuIds.add(result.getString("id"));
// System.out.println(stu.toString());
}
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
return stuIds;
}
// 修改某学生的某门课程成绩。
public void updStuGrade(String id,String subjectName,String score) {
String sql = "update grade set "
+ "score=?"
+ "where student_id=? and "
+ "subject_name=?";
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1,score);
pre.setString(2, id);
pre.setString(3, subjectName);
pre.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
//某课程学生最高分
public List<Grade> getSubjectMax(String subjectName,String className ) {
List<Grade>grades=new ArrayList<>();
Grade grade=null;
String sql="SELECT * FROM grade WHERE score=(select Max(SCORE) FROM grade where subject_name=? and student_id in (SELECT id from `user` where class=?) ) and subject_name=?" ;
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, subjectName);
pre.setString(2, className);
pre.setString(3, subjectName);
ResultSet result = pre.executeQuery();
while(result.next()) {
grade=new Grade();
grade.setScore(result.getString("score"));
grade.setStudentId(result.getString("student_id"));
grade.setSubjectName(result.getString("subject_name"));
grades.add(grade);
}
}catch(SQLException e) {
e.printStackTrace();
}
return grades;
}
//某课程学生最低分
public List<Grade> getSubjectMin(String subjectName,String className ) {
List<Grade>grades=new ArrayList<>();
Grade grade=null;
String sql="SELECT * FROM grade WHERE score=(select MIN(SCORE) FROM grade where subject_name=? and student_id in (SELECT id from `user` where class=?)) and subject_name=?" ;
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, subjectName);
pre.setString(2, className);
pre.setString(3, subjectName);
ResultSet result = pre.executeQuery();
while(result.next()) {
grade=new Grade();
grade.setScore(result.getString("score"));
grade.setStudentId(result.getString("student_id"));
grade.setSubjectName(result.getString("subject_name"));
grades.add(grade);
}
}catch(SQLException e) {
e.printStackTrace();
}
return grades;
}
//某课程某班不及格学生
//某课程学生最低分
public List getSubjectFail(String subjectName,String className ) {
List<Grade>grades=new ArrayList<>();
Grade grade=null;
String sql="select * FROM grade where subject_name=? and student_id in (SELECT id from `user` where class=?) and score<'60'" ;
try {
PreparedStatement pre=con.prepareStatement(sql);
pre.setString(1, subjectName);
pre.setString(2, className);
ResultSet result = pre.executeQuery();
while(result.next()) {
grade=new Grade();
grade.setScore(result.getString("score"));
grade.setStudentId(result.getString("student_id"));
grade.setSubjectName(result.getString("subject_name"));
grades.add(grade);
}
}catch(SQLException e) {
e.printStackTrace();
}
return grades;
}
}
数据库/成绩
package bean;
public class Grade {
private String studentId;
private String subjectName;
private String score;
public String getStudentId() {
return studentId;
}
public void setStudentId(String studentId) {
this.studentId = studentId;
}
public String getSubjectName() {
return subjectName;
}
public void setSubjectName(String subjectName) {
this.subjectName = subjectName;
}
public String getScore() {
return score;
}
public void setScore(String score) {
this.score = score;
}
public String[] getStringArray() {
String[] array={studentId,subjectName,score};
return array;
}
}
数据库/课程
package bean;
public class SubjectInfo {
private String subjectName;
private String className;
private String teacherId;
public String getSubjectName() {
return subjectName;
}
public void setSubjectName(String subjectName) {
this.subjectName = subjectName;
}
public String getClassName() {
return className;
}
public void setClassName(String className) {
this.className = className;
}
public String getTeacherId() {
return teacherId;
}
public void setTeacherId(String teacherId) {
this.teacherId = teacherId;
}
public String[] getStringArray() {
String[] array={subjectName,className,teacherId};
return array;
}
public String getComboBoxString() {
return subjectName+"----"+className+"----"+teacherId;
}
}
数据库/用户
package bean;
public class User {
private String id;
private String password;
private String name;
private String type;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getClassName() {
return className;
}
public void setClassName(String className) {
this.className = className;
}
private String className;
@Override
public String toString() {
return id+password+name+type+className;
}
public String[] getStringArrayTea() {
String[] array={id,password,name};
return array;
}
public String[] getStringArrayStu() {
String[] array={id,password,name,className};
return array;
}
}
测试类
package text;
import sql.Dao;
import UI.denglu;
public class Test {
public static void main(String[] args) {
Dao jdbc=new Dao();
new denglu(jdbc);
}
}
MySql
Mysql
/*
Navicat MySQL Data Transfer
Source Server : 本地数据库链接
Source Server Version : 50505
Source Host : localhost:3306
Source Database : java_system
Target Server Type : MYSQL
Target Server Version : 50505
File Encoding : 65001
Date: 2019-12-28 19:13:14
*/
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for class
-- ----------------------------
DROP TABLE IF EXISTS class ;
CREATE TABLE class (
class_name varchar(255) NOT NULL,
PRIMARY KEY (class_name));
ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of class
-- ----------------------------
INSERT INTO class VALUES ('12345');
INSERT INTO class VALUES ('计算机17-1');
INSERT INTO class VALUES ('计算机18-1');
INSERT INTO class VALUES ('计算机18-2');
INSERT INTO class VALUES ('计算机19-1');
INSERT INTO class VALUES ('计算机19-2');
-- ----------------------------
-- Table structure for grade
-- ----------------------------
DROP TABLE IF EXISTS grade ;
CREATE TABLE grade (
student_id varchar(255) NOT NULL,
subject_name varchar(255) DEFAULT NULL,
score varchar(255) DEFAULT NULL);
ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of grade
-- ----------------------------
INSERT INTO grade VALUES ('18034430101', '面向对象原理与Java实践', '80');
INSERT INTO grade VALUES ('18034430102', '面向对象原理与Java实践', '84');
INSERT INTO grade VALUES ('18034430103', '面向对象原理与Java实践', '86');
INSERT INTO grade VALUES ('18034430104', '面向对象原理与Java实践', '76');
INSERT INTO grade VALUES ('18034430105', '面向对象原理与Java实践', '56');
INSERT INTO grade VALUES ('18034430106', '面向对象原理与Java实践', '37');
INSERT INTO grade VALUES ('18034430107', '面向对象原理与Java实践', '85');
INSERT INTO grade VALUES ('18034430108', '面向对象原理与Java实践', '95');
INSERT INTO grade VALUES ('18034430109', '面向对象原理与Java实践', '37');
INSERT INTO grade VALUES ('18034430110', '面向对象原理与Java实践', '65');
INSERT INTO grade VALUES ('18034430111', '面向对象原理与Java实践', '61');
INSERT INTO grade VALUES ('18034430101', '高等数学', '85');
INSERT INTO grade VALUES ('18034430102', '高等数学', '39');
INSERT INTO grade VALUES ('18034430103', '高等数学', '84');
INSERT INTO grade VALUES ('18034430104', '高等数学', '86');
INSERT INTO grade VALUES ('18034430105', '高等数学', '76');
INSERT INTO grade VALUES ('18034430106', '高等数学', '56');
INSERT INTO grade VALUES ('18034430107', '高等数学', '37');
INSERT INTO grade VALUES ('18034430108', '高等数学', '85');
INSERT INTO grade VALUES ('18034430109', '高等数学', '95');
INSERT INTO grade VALUES ('18034430110', '高等数学', '71');
INSERT INTO grade VALUES ('18034430111', '高等数学', '90');
INSERT INTO grade VALUES ('18034430101', '计算机网络', '57');
INSERT INTO grade VALUES ('18034430102', '计算机网络', '54');
INSERT INTO grade VALUES ('18034430103', '计算机网络', '78');
INSERT INTO grade VALUES ('18034430104', '计算机网络', '71');
INSERT INTO grade VALUES ('18034430105', '计算机网络', '73');
INSERT INTO grade VALUES ('18034430106', '计算机网络', '70');
INSERT INTO grade VALUES ('18034430107', '计算机网络', '95');
INSERT INTO grade VALUES ('18034430108', '计算机网络', '98');
INSERT INTO grade VALUES ('18034430109', '计算机网络', '95');
INSERT INTO grade VALUES ('18034430110', '计算机网络', '71');
INSERT INTO grade VALUES ('18034430111', '计算机网络', '90');
INSERT INTO grade VALUES ('18034430112', '面向对象原理与Java实践', '57');
INSERT INTO grade VALUES ('18034430113', '面向对象原理与Java实践', '54');
INSERT INTO grade VALUES ('18034430114', '面向对象原理与Java实践', '87');
INSERT INTO grade VALUES ('18034430115', '面向对象原理与Java实践', '98');
INSERT INTO grade VALUES ('18034430116', '面向对象原理与Java实践', '60');
INSERT INTO grade VALUES ('18034430117', '面向对象原理与Java实践', '56');
INSERT INTO grade VALUES ('18034430118', '面向对象原理与Java实践', '66');
INSERT INTO grade VALUES ('18034430119', '面向对象原理与Java实践', '68');
INSERT INTO grade VALUES ('18034430120', '面向对象原理与Java实践', '76');
INSERT INTO grade VALUES ('18034430121', '面向对象原理与Java实践', '77');
INSERT INTO grade VALUES ('18034430122', '面向对象原理与Java实践', '88');
INSERT INTO grade VALUES ('18034430112', '高等数学', '99');
INSERT INTO grade VALUES ('18034430113', '高等数学', '57');
INSERT INTO grade VALUES ('18034430114', '高等数学', '54');
INSERT INTO grade VALUES ('18034430115', '高等数学', '78');
INSERT INTO grade VALUES ('18034430116', '高等数学', '71');
INSERT INTO grade VALUES ('18034430117', '高等数学', '73');
INSERT INTO grade VALUES ('18034430118', '高等数学', '70');
INSERT INTO grade VALUES ('18034430119', '高等数学', '95');
INSERT INTO grade VALUES ('18034430120', '高等数学', '98');
INSERT INTO grade VALUES ('18034430121', '高等数学', '95');
INSERT INTO grade VALUES ('18034430122', '高等数学', '71');
INSERT INTO grade VALUES ('18034430112', '计算机网络', '90');
INSERT INTO grade VALUES ('18034430113', '计算机网络', '57');
INSERT INTO grade VALUES ('18034430114', '计算机网络', '54');
INSERT INTO grade VALUES ('18034430115', '计算机网络', '87');
INSERT INTO grade VALUES ('18034430116', '计算机网络', '98');
INSERT INTO grade VALUES ('18034430117', '计算机网络', '60');
INSERT INTO grade VALUES ('18034430118', '计算机网络', '57');
INSERT INTO grade VALUES ('18034430119', '计算机网络', '54');
INSERT INTO grade VALUES ('18034430120', '计算机网络', '78');
INSERT INTO grade VALUES ('18034430121', '计算机网络', '71');
INSERT INTO grade VALUES ('18034430122', '计算机网络', '73');
INSERT INTO grade VALUES ('18034430123', '路由交换技术', '70');
INSERT INTO grade VALUES ('18034430124', '路由交换技术', '95');
INSERT INTO grade VALUES ('18034430125', '路由交换技术', '98');
INSERT INTO grade VALUES ('18034430126', '路由交换技术', '95');
INSERT INTO grade VALUES ('18034430127', '路由交换技术', '71');
INSERT INTO grade VALUES ('18034430128', '路由交换技术', '90');
INSERT INTO grade VALUES ('18034430129', '路由交换技术', '57');
INSERT INTO grade VALUES ('18034430130', '路由交换技术', '54');
INSERT INTO grade VALUES ('18034430131', '路由交换技术', '57');
INSERT INTO grade VALUES ('18034430132', '路由交换技术', '54');
INSERT INTO grade VALUES ('18034430133', '路由交换技术', '78');
INSERT INTO grade VALUES ('18034430123', '嵌入式', '71');
INSERT INTO grade VALUES ('18034430124', '嵌入式', '73');
INSERT INTO grade VALUES ('18034430125', '嵌入式', '70');
INSERT INTO grade VALUES ('18034430126', '嵌入式', '95');
INSERT INTO grade VALUES ('18034430127', '嵌入式', '98');
INSERT INTO grade VALUES ('18034430128', '嵌入式', '95');
INSERT INTO grade VALUES ('18034430129', '嵌入式', '71');
INSERT INTO grade VALUES ('18034430130', '嵌入式', '90');
INSERT INTO grade VALUES ('18034430131', '嵌入式', '57');
INSERT INTO grade VALUES ('18034430132', '嵌入式', '54');
INSERT INTO grade VALUES ('18034430133', '嵌入式', '87');
INSERT INTO grade VALUES ('18034430134', '大学英语', '98');
INSERT INTO grade VALUES ('18034430135', '大学英语', '60');
INSERT INTO grade VALUES ('18034430136', '大学英语', '56');
INSERT INTO grade VALUES ('18034430137', '大学英语', '57');
INSERT INTO grade VALUES ('18034430138', '大学英语', '54');
INSERT INTO grade VALUES ('18034430139', '大学英语', '78');
INSERT INTO grade VALUES ('18034430140', '大学英语', '71');
INSERT INTO grade VALUES ('18034430141', '大学英语', '73');
INSERT INTO grade VALUES ('18034430142', '大学英语', '70');
INSERT INTO grade VALUES ('18034430143', '大学英语', '95');
INSERT INTO grade VALUES ('18034430144', '大学英语', '98');
INSERT INTO grade VALUES ('18034430134', '大学英语视听说', '95');
INSERT INTO grade VALUES ('18034430135', '大学英语视听说', '71');
INSERT INTO grade VALUES ('18034430136', '大学英语视听说', '90');
INSERT INTO grade VALUES ('18034430137', '大学英语视听说', '57');
INSERT INTO grade VALUES ('18034430138', '大学英语视听说', '54');
INSERT INTO grade VALUES ('18034430139', '大学英语视听说', '87');
INSERT INTO grade VALUES ('18034430140', '大学英语视听说', '98');
INSERT INTO grade VALUES ('18034430141', '大学英语视听说', '60');
INSERT INTO grade VALUES ('18034430142', '大学英语视听说', '56');
INSERT INTO grade VALUES ('18034430143', '大学英语视听说', '66');
INSERT INTO grade VALUES ('18034430144', '大学英语视听说', '57');
INSERT INTO grade VALUES ('18034430145', '大学英语', '54');
INSERT INTO grade VALUES ('18034430146', '大学英语', '78');
INSERT INTO grade VALUES ('18034430147', '大学英语', '71');
INSERT INTO grade VALUES ('18034430148', '大学英语', '73');
INSERT INTO grade VALUES ('18034430149', '大学英语', '70');
INSERT INTO grade VALUES ('18034430150', '大学英语', '95');
INSERT INTO grade VALUES ('18034430151', '大学英语', '98');
INSERT INTO grade VALUES ('18034430152', '大学英语', '95');
INSERT INTO grade VALUES ('18034430153', '大学英语', '71');
INSERT INTO grade VALUES ('18034430154', '大学英语', '90');
INSERT INTO grade VALUES ('18034430155', '大学英语', '57');
INSERT INTO grade VALUES ('18034430145', '大学英语视听说', '54');
INSERT INTO grade VALUES ('18034430146', '大学英语视听说', '87');
INSERT INTO grade VALUES ('18034430147', '大学英语视听说', '98');
INSERT INTO grade VALUES ('18034430148', '大学英语视听说', '60');
INSERT INTO grade VALUES ('18034430149', '大学英语视听说', '56');
INSERT INTO grade VALUES ('18034430150', '大学英语视听说', '66');
INSERT INTO grade VALUES ('18034430151', '大学英语视听说', '68');
INSERT INTO grade VALUES ('18034430152', '大学英语视听说', '93');
INSERT INTO grade VALUES ('18034430153', '大学英语视听说', '98');
INSERT INTO grade VALUES ('18034430154', '大学英语视听说', '80');
INSERT INTO grade VALUES ('18034430155', '大学英语视听说', '70');
-- ----------------------------
-- Table structure for subject
-- ----------------------------
DROP TABLE IF EXISTS subject ;
CREATE TABLE subject (
subject_name varchar(255) DEFAULT NULL,
class_name varchar(255) DEFAULT NULL,
teacher_id varchar(255) DEFAULT NULL);
ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of subject
-- ----------- ----------------
INSERT INTO subject VALUES ('面向对象原理与Java实践', '计算机18-1', '10000');
INSERT INTO subject VALUES ('高等数学', '计算机18-1', '10001');
INSERT INTO subject VALUES ('大学英语', '计算机19-1', '10002');
INSERT INTO subject VALUES ('路由交换技术', '计算机17-1', '10003');
INSERT INTO subject VALUES ('计算机网络', '计算机18-1', '10004');
INSERT INTO subject VALUES ('大学英语视听说', '计算机19-1', '10005');
INSERT INTO subject VALUES ('大学英语视听说', '计算机19-2', '10005');
INSERT INTO subject VALUES ('计算机网络', '计算机18-2', '10004');
INSERT INTO subject VALUES ('大学英语', '计算机19-2', '10002');
INSERT INTO subject VALUES ('面向对象原理与Java实践', '计算机18-2', '10000');
INSERT INTO subject VALUES ('嵌入式', '计算机17-1', '10006');
INSERT INTO subject VALUES ('高等数学', '计算机18-2', '10001');
INSERT INTO subject VALUES ('测试', '计算机18-1', '10000');
-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS user ;
CREATE TABLE user (
id varchar(255) NOT NULL,
password varchar(255) DEFAULT NULL,
name varchar(255) DEFAULT NULL,
type varchar(255) DEFAULT NULL,
class varchar(255) DEFAULT NULL,
PRIMARY KEY ( id ));
-- ----------------------------
-- Records of user
-- ---------------------------
INSERT INTO user VALUES ('10000', '1', 'java老师', 'teacher', '');
INSERT INTO user VALUES ('10001', '1', '高数老师', 'teacher', null);
INSERT INTO user VALUES ('10002', '1', '大学英语老师', 'teacher', null);
INSERT INTO user VALUES ('10003', '1', '路由交换老师', 'teacher', null);
INSERT INTO user VALUES ('10004', '1', '计算机网络老师', 'teacher', null);
INSERT INTO user VALUES ('10005', '1', '视听说老师', 'teacher', null);
INSERT INTO user VALUES ('10006', '1', '嵌入式老师', 'teacher', null);
INSERT INTO user VALUES ('18034430101', '1', '学生1', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430102', '1', '学生2', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430103', '1', '学生3', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430104', '1', '学生4', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430105', '1', '学生5', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430106', '1', '学生6', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430107', '1', '学生7', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430108', '1', '学生8', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430109', '1', '学生9', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430110', '1', '学生10', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430111', '1', '学生11', 'student', '计算机18-1');
INSERT INTO user VALUES ('18034430112', '1', '学生12', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430113', '1', '学生13', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430114', '1', '学生14', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430115', '1', '学生15', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430116', '1', '学生16', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430117', '1', '学生17', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430118', '1', '学生18', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430119', '1', '学生19', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430120', '1', '学生20', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430121', '1', '学生21', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430122', '1', '学生22', 'student', '计算机18-2');
INSERT INTO user VALUES ('18034430123', '1', '学生23', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430124', '1', '学生24', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430125', '1', '学生25', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430126', '1', '学生26', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430127', '1', '学生27', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430128', '1', '学生28', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430129', '1', '学生29', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430130', '1', '学生30', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430131', '1', '学生31', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430132', '1', '学生32', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430133', '1', '学生33', 'student', '计算机17-1');
INSERT INTO user VALUES ('18034430134', '1', '学生34', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430135', '1', '学生35', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430136', '1', '学生36', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430137', '1', '学生37', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430138', '1', '学生38', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430139', '1', '学生39', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430140', '1', '学生40', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430141', '1', '学生41', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430142', '1', '学生42', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430143', '1', '学生43', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430144', '1', '学生44', 'student', '计算机19-1');
INSERT INTO user VALUES ('18034430145', '1', '学生45', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430146', '1', '学生46', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430147', '1', '学生47', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430148', '1', '学生48', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430149', '1', '学生49', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430150', '1', '学生50', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430151', '1', '学生51', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430152', '1', '学生52', 'student', '计算机19-2');
INSERT INTO user VALUES ('180344530153', '1', '学生53', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430154', '1', '学生54', 'student', '计算机19-2');
INSERT INTO user VALUES ('18034430155', '1', '学生55', 'student', '计算机19-2');
INSERT INTO user VALUES ('root', '1', '超级管理员', 'admin', null);
