或存管理系统
终于结束了数据库的课设，做了货存管理系统，我做了java部分，完成了很简单的界面的交互功能的实现和与数据库的链接，做的很简单，功能也很不好^ – ^{{{！！！！
将与数据库的链接进行了封装，每次只需调用传入账号和密码
public class jdbcUtil {
Connection con = null;
PreparedStatement ps1 =null;
ResultSet rs = null;
InputStream is=null;
OutputStream os= null;
public static Connection getMysqlConn(String name,String pwd) {
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
return DriverManager.getConnection("jdbc:sqlserver://localhost:1433;DatabaseName=货存管理系统",name,pwd);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public static void close(ResultSet rs,Statement ps,Connection con) {
if(rs!=null) {
try {
rs.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(ps!=null) {
try {
ps.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(con!=null) {
try {
con.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
登陆界面
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class Login extends JFrame implements ActionListener{
private static final long serialVersionUID = -5978502250361767960L;
//按钮
JButton btnLogin,btnRegister,btnCancel;
//创建中间容器
JPanel pnlSouth,pnlNorth,pnlCenter,pnlCenter1,pnlCenter2;
//标签
JLabel lbl1,JLabelNum,JLabelPwd;
//用户名文本框
JTextField tfNum;
//密码文本框
JPasswordField tfPwd;
//创建窗口
String url = "com.mysql.jdbc.Driver";
Login(String title){
super(title);
//north
pnlNorth = new JPanel();
lbl1 = new JLabel("欢迎进入货存系统！");
pnlNorth.add(lbl1);
this.add(pnlNorth,BorderLayout.NORTH);
//center
pnlCenter=new JPanel();
pnlCenter1=new JPanel();
pnlCenter2=new JPanel();
pnlCenter.setLayout(new BorderLayout());
JLabelNum=new JLabel("学 号：");
tfNum=new JTextField(15);
pnlCenter1.add(JLabelNum);
pnlCenter1.add(tfNum);
pnlCenter.add(pnlCenter1,BorderLayout.NORTH);
JLabelPwd=new JLabel("密 码：");
tfPwd=new JPasswordField(15);
pnlCenter2.add(JLabelPwd);
pnlCenter2.add(tfPwd);
pnlCenter.add(pnlCenter2,BorderLayout.SOUTH);
this.add(pnlCenter,BorderLayout.CENTER);
//south
pnlSouth = new JPanel();
//生成按钮
btnLogin = new JButton("登录");
btnLogin.addActionListener(this);
btnRegister = new JButton("注册");
btnRegister.addActionListener(this);
btnCancel = new JButton("取消");
btnCancel.addActionListener(this);
//将三个按钮放在一个中间容器中
pnlSouth.add(btnLogin);
pnlSouth.add(btnRegister);
pnlSouth.add(btnCancel);
//将按钮添加到图形界面
//this.add(btnLogin);
//this.add(btnRegister);
//this.add(btnCancel);
this.add(pnlSouth,BorderLayout.SOUTH);
this.setSize(500, 180);
GUIUtil.toCenter(this);//使窗口居中
this.setVisible(true);//可视化
this.setResizable(false);//关闭放大窗口
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置错误关闭操作
}
public void actionPerformed(ActionEvent e) {
if(e.getSource()==btnLogin){
String num = tfNum.getText();
String pwd = tfPwd.getText();
if(num==null){
JOptionPane.showMessageDialog(this, "您输入的账号不存在，请重新输入！");
return;
}
Connection con=null;
con = jdbcUtil.getMysqlConn(num, pwd);
if(con==null){
JOptionPane.showMessageDialog(this, "您输入的密码错误，请重新输入！");
return;
}
JOptionPane.showMessageDialog(this,"恭喜您，登陆成功！"+"\n 数据库连接成功");
this.dispose();
new AdminFunction(num,pwd);
return;
}
if(e.getSource()==btnRegister) {
new ModifyDialog("注册用户");
}
if(e.getSource()==btnCancel) {
JOptionPane.showMessageDialog(this,"拜拜！！！！");
System.exit(0);
}
}}
管理员
public class AdminFunction extends Frame implements ActionListener{
//存储货物编号的文件
String s,d;//账号密码
//定义各个控件
private JButton btLookSelf=new JButton("查看个人资料");
private JButton btModify=new JButton("修改个人资料");
private JButton btShowhc=new JButton("查看存货信息");
//private JButton btModifyhc=new JButton("修改存货信息");
private JButton btDeletehc=new JButton("出库");
private JButton btAddhc=new JButton("入库");
private JButton btExit=new JButton("退出系统");
ImageIcon img = new ImageIcon("images\\bg.jpg");
JLabel bg = new JLabel(img);
public AdminFunction(String s,String d){
super("账号："+s);//串口标题
this.s=s;
this.d=d;//传入账号密码
this.setLayout(null);//设置为手工设置各个组件的位置和大小
bg.setBounds(0,0,img.getIconHeight(),img.getIconWidth());
btLookSelf.setBounds(new Rectangle(50,80,300,50));//修改个人资料
btShowhc.setBounds(new Rectangle(50,150,300,50));//查看存货信息
// btModifyhc.setBounds(new Rectangle(50,220,300,50));//修改存货信息
btDeletehc.setBounds(new Rectangle(50,220,300,50));//出库
btAddhc.setBounds(new Rectangle(50,290,300,50));//入库
btExit.setBounds(new Rectangle(50,360,300,50));//退出系统
btLookSelf.addActionListener(this);
btShowhc.addActionListener(this);
//btModifyhc.addActionListener(this);
btDeletehc.addActionListener(this);
btAddhc.addActionListener(this);
btExit.addActionListener(this);
this.add(bg);
this.add(btLookSelf);
this.add(btShowhc);
//this.add(btModifyhc);
this.add(btDeletehc);
this.add(btAddhc);
this.add(btExit);
this.setSize(400,500);
GUIUtil.toCenter(this);//使窗口居中
this.setVisible(true);//可视化
this.setResizable(false);//关闭放大窗口
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置错误关闭操作
//用于关闭窗体事件
this.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
}
private void setDefaultCloseOperation(int exitOnClose) {
// TODO Auto-generated method stub
}
@Override
public void actionPerformed(ActionEvent e) {
//建立连接(建立对象内部其实包含了Socket对象，是一个远程的连接。比较耗时！这是connection对象管理的要点)
//真正开发中，为了提高效率，都会使用连接池来管理连接对象；
Connection con = null;
con = jdbcUtil.getMysqlConn(s, d);
// TODO Auto-generated method stub
if(e.getSource()==btLookSelf) {//查看个人资料
String message="您的详细资料为:\n";
message+="账号："+s+"\n";
message+="姓名："+"测试员666"+"\n";
message+="性别："+"男"+"\n";
message+="年龄："+"18"+"\n";
message+="班级："+"网络工程1702"+"\n";
JOptionPane.showMessageDialog(this,message);
}else if(e.getSource()==btShowhc) {//查看货物信息
this.dispose();
new selecthc(s,d);
}
else if(e.getSource()==btDeletehc) {//出库
this.dispose();
new deletehc(s,d);
}else if(e.getSource()==btAddhc) {//入库
this.dispose();
new addhc(s,d);
}else if(e.getSource()==btExit){//退出系统
JOptionPane.showMessageDialog(this,"谢谢光临，欢迎下次继续使用本系统！");
System.exit(0);
}
}
}
出库
public class deletehc extends Frame implements ActionListener{
String s,d;//账号密码
private JTextField Text1,Text2,Text3;
private JLabel jlabel1,jlabel2,jlabel3;
Font font=new Font("楷体",1,15);
JButton b1,b2;
public deletehc(String s, String d) {
super("出库");//串口标题
this.s=s;
this.d=d;
setLayout(new FlowLayout());
jlabel1 = new JLabel(" 出库物品：");
this.add(jlabel1);
jlabel1.setFont(font);
Text1 = new JTextField(15);
this.add(Text1);
jlabel2 = new JLabel(" 货 号: ");
this.add(jlabel2);
jlabel2.setFont(font);
Text2 = new JTextField(15);
this.add(Text2);
jlabel3 = new JLabel(" 出库量: ");
this.add(jlabel3);
jlabel3.setFont(font);
Text3 = new JTextField(15);
this.add(Text3);
b1 = new JButton("出库");
b1.setFont(font);
b1.addActionListener(this);
this.add(b1);
b2 = new JButton("返回");
b2.setFont(font);
b2.addActionListener(this);
this.add(b2);
this.setSize(300,150);
GUIUtil.toCenter(this);//使窗口居中
this.setVisible(true);//可视化
this.setResizable(false);//关闭放大窗口
//用于关闭窗体事件
this.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
}
public void actionPerformed(ActionEvent a) {
Connection con = null;
PreparedStatement ps1 =null;
PreparedStatement ps2 =null;
PreparedStatement ps3 =null;
ResultSet rs =null;
if(a.getSource()==b1) {
String Gno = Text1.getText();
String Cno = Text2.getText();
String Outnum = Text3.getText();
try {
con = jdbcUtil.getMysqlConn(s, d);
con.setAutoCommit(false);//jdbc默认自动提交事务
ps1 = con.prepareStatement("update Stock_Out set Outnum=? where Gno=? and Cno=?");
ps1.setString(1, Outnum);
ps1.setString(2, Gno);
ps1.setString(3, Cno);
ps1.execute();
ps3=con.prepareStatement("select * from Stock_Out where Gno=? and Cno=?");
ps3.setString(1, Gno);
ps3.setString(2, Cno);
rs = ps3.executeQuery();
while(rs.next()) {
Double jg = rs.getDouble("Goutprice")*Integer.valueOf(Outnum);
ps2 = con.prepareStatement("update Stock_Out set Outprice=? where Gno=? and Cno=?");
ps2.setDouble(1,jg);
ps2.setString(2, Gno);
ps2.setString(3, Cno);
ps2.execute();
}
con.commit();//提交事务
JOptionPane.showMessageDialog(this, "出库成功");
new deletehc(s,d);
}catch (SQLException e) {
e.printStackTrace();
}finally {
//关闭顺序遵循从 ResultSet--》 PreparedStatement--》 connection,一定要把三个catch块分开写！！
if(ps1!=null) {
try {
ps1.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(con!=null) {
try {
con.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
if(a.getSource()==b2) {
this.dispose();
new AdminFunction(s,d);
}
}
}
入库
public class addhc extends Frame implements ActionListener{
String s,d;//账号密码
private JTextField Text1,Text2,Text3;
private JLabel jlabel1,jlabel2,jlabel3;
Font font=new Font("楷体",1,15);
JButton b1,b2;
public addhc(String s,String d) {
super("入库");//串口标题
this.s=s;
this.d=d;
setLayout(new FlowLayout());
jlabel1 = new JLabel(" 入库物品：");
this.add(jlabel1);
jlabel1.setFont(font);
Text1 = new JTextField(15);
this.add(Text1);
jlabel2 = new JLabel(" 货 号: ");
this.add(jlabel2);
jlabel2.setFont(font);
Text2 = new JTextField(15);
this.add(Text2);
jlabel3 = new JLabel(" 入库量: ");
this.add(jlabel3);
jlabel3.setFont(font);
Text3 = new JTextField(15);
this.add(Text3);
b1 = new JButton("入库");
b1.setFont(font);
b1.addActionListener(this);
this.add(b1);
b2 = new JButton("返回");
b2.setFont(font);
b2.addActionListener(this);
this.add(b2);
this.setSize(300,150);
GUIUtil.toCenter(this);//使窗口居中
this.setVisible(true);//可视化
this.setResizable(false);//关闭放大窗口
//用于关闭窗体事件
this.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
}
public void actionPerformed(ActionEvent a) {
Connection con = null;
PreparedStatement ps1 =null;
PreparedStatement ps2= null;
PreparedStatement ps3 = null;
ResultSet rs = null;
if(a.getSource()==b1) {
String Gno = Text1.getText();
String Pno = Text2.getText();
String Innum = Text3.getText();
try {
con = jdbcUtil.getMysqlConn(s, d);
con.setAutoCommit(false);//jdbc默认自动提交事务
ps3=con.prepareStatement("select * from Stock_In where Gno=? and Pno=?");
ps3.setString(1, Gno);
ps3.setString(2, Pno);
rs = ps3.executeQuery();
while(rs.next()){
int num=rs.getInt("Innum");
ps1 = con.prepareStatement("update Stock_In set Innum=? where Gno=? and Pno=?");
ps1.setString(1, num+Innum);
ps1.setString(2, Gno);
ps1.setString(3, Pno);
ps1.execute();
double jg=0;
jg += rs.getDouble("Ginprice")*Integer.valueOf(Innum);
ps2 = con.prepareStatement("update Stock_In set Inprice=? where Gno=? and Pno=?");
ps2.setDouble(1,jg);
ps2.setString(2, Gno);
ps2.setString(3, Pno);
ps2.execute();
con.commit();//提交事务
JOptionPane.showMessageDialog(this, "入库成功");
new addhc(s,d);
}
}catch (SQLException e) {
e.printStackTrace();
}finally {
//关闭顺序遵循从 ResultSet--》 PreparedStatement--》 connection,一定要把三个catch块分开写！！
if(ps1!=null) {
try {
ps1.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(con!=null) {
try {
con.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
if(a.getSource()==b2) {
this.dispose();
new AdminFunction(s,d);
}
}
}
查询库存
public class selecthc extends JFrame implements ActionListener{
String s,d;
Font font=new Font("楷体",1,15);
private JTextField Text1,Text2;
private JLabel jlabel1,jlabel2;
JButton b1,b2;
selecthc(String s,String d){
super("查询");
this.s=s;
this.d=d;
setLayout(new FlowLayout());
//north
jlabel1 = new JLabel("物品编号:");
this.add(jlabel1);
jlabel1.setFont(font);
Text1 = new JTextField(15);
this.add(Text1);
jlabel2 = new JLabel(" 仓库号:");
this.add(jlabel2);
jlabel2.setFont(font);
Text2 = new JTextField(15);
this.add(Text2);
b1 = new JButton("查询");
b1.setFont(font);
b1.addActionListener(this);
this.add(b1);
b2 = new JButton("返回");
b2.setFont(font);
b2.addActionListener(this);
this.add(b2);
this.setSize(300,150);
GUIUtil.toCenter(this);//使窗口居中
this.setVisible(true);//可视化
this.setResizable(false);//关闭放大窗口
//用于关闭窗体事件
this.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
}
public void actionPerformed(ActionEvent a) {
//加载驱动类
Connection con = null;
PreparedStatement ps =null;
ResultSet rs = null;
if(a.getSource()==b1) {
String name = Text1.getText();
String num = Text2.getText();
try{
con = jdbcUtil.getMysqlConn(s, d);
ps=con.prepareStatement("select * from Stock where Gno=? and Sno=?");
ps.setObject(1, name);
ps.setObject(2, num);
rs = ps.executeQuery();
while(rs.next()) {
String message=" 查询结果\n";
message+="物品编号："+rs.getString("Gno")+"\n";
message+=" 仓库号："+rs.getString("Sno")+"\n";
message+="物品名称："+rs.getString("Gname")+"\n";
message+="类型名称："+rs.getString("Tname")+"\n";
message+="物品数量："+rs.getInt("Gnum")+"\n";
JOptionPane.showMessageDialog(this,message);
this.dispose();
new selecthc(s,d);
}
} catch (SQLException e) {
e.printStackTrace();
}finally {
//关闭顺序遵循从 ResultSet--》 PreparedStatement--》 connection,一定要把三个catch块分开写！！
if(ps!=null) {
try {
ps.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(con!=null) {
try {
con.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
if(a.getSource()==b2) {
this.dispose();
new AdminFunction(s,d);
}
}
}
在以上的代码中数据库名表名都是我的数据库中的名字！！！！！
数据库考试也考完了，接下来就是计算机组成原理了，加油加油！！！！
马上也该放假了，回去开始苦逼的学车，加自学