基于java eclipse+jsp+mysql，java面试题大汇总云栖社区

老师管理：

添加老师信息

查看老师列表信息：

成绩管理：

学生成绩信息查看

个人中心：

个人中心随意做了一个alert弹窗

部分代码实现：

登录前端：

<%@ page language=“java” import=“java.util.*” pageEncoding=“UTF-8”%>

学生信息管理系统

登录后台servlet：

package impl;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.util.ArrayList;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpSession;

import util.DB;

import dao.ILogin;

import entity.Operator;

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【docs.qq.com/doc/DSmxTbFJ1cmN1R2dB】完整内容开源分享

import entity.Privilege;

public class LoginImpl implements ILogin {

private PrivilegeImpl1 privilegeImpl = new PrivilegeImpl1();

private RoleImpl roleImpl = new RoleImpl();

private List list_privilege;

private PreparedStatement pst;

private Operator log_operator;

private HttpSession session;

private String checkResult;

private Connection conn;

private ResultSet rs;

// 登录验证

public String login(HttpServletRequest request, Operator operator) {

session = request.getSession();

checkResult = “success”;

log_operator = new Operator();

try {

conn = DB.getConn();

pst = conn

.prepareStatement(“SELECT * FROM operator WHERE ope_name = ?”);

pst.setString(1, operator.getName());

rs = pst.executeQuery();

if (!rs.next()) {

checkResult = “账户不存在，请重新输入！”;

session.setAttribute(“isLogin”, “false”);

} else {

if (!operator.getPwd().equals(rs.getString(3))) {

checkResult = “您输入的密码不正确，请重新输入！”;

session.setAttribute(“isLogin”, “false”);

} else {

// 登录成功

session.setAttribute(“isLogin”, “true”);

// 获得该用户的完整信息

log_operator.setId(rs.getInt(1));

log_operator.setName(rs.getString(2));

log_operator.setPwd(rs.getString(3));

log_operator.setRole(roleImpl.query(“rol_id”,

rs.getString(4)).get(0));

session.setAttribute(“log_operator”, log_operator);

// 根据用户，获取对应的角色对应的权限

list_privilege = privilegeImpl.query(“rol_id”, log_operator

.getRole().getId()

“”);

List list = new ArrayList();

list.add(list_privilege.get(0));

for (int i = 1; i < list_privilege.size(); i++) {

int y=0;

for(int x=0;x<list.size();x++){

if(!list.get(x).getMenu_name().equals(

list_privilege.get(i).getMenu_name())){

y++;

}

if (y==list.size()) {

list.add(list_privilege.get(i));

}

session.setAttribute(“list”, list);

session.setAttribute(“list_privilege”, list_privilege);

}

} catch (Exception e) {

e.printStackTrace();

} finally {

DB.close(conn, pst, rs);

}

return checkResult;

}

链接数据库：

利用最基本的jdbc进行链接

package util;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

public class DB {

// 获取数据库连接

public static Connection getConn() {

Connection conn = null;

String url = “jdbc:mysql://localhost:3306/jsp_studentmanager?characterEncoding=utf8”;

String name = “root”;

String pwd = “123456”;

try {

Class.forName(“com.mysql.jdbc.Driver”);

conn = DriverManager.getConnection(url, name, pwd);

} catch (Exception e) {

e.printStackTrace();

}

return conn;

}

// 关闭对象释放资源

public static void close(Connection conn, PreparedStatement pst,

ResultSet rs) {

try {

if (rs != null)

rs.close();

if (pst != null)

pst.close();

if (conn != null)

conn.close();

} catch (Exception e) {

e.printStackTrace();

}

部分表结构：

学生表：

CREATE TABLE NewTable (

stu_id int(11) NOT NULL AUTO_INCREMENT ,

ope_id int(11) NULL DEFAULT NULL ,

stu_no varchar(22) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL ,

stu_name varchar(22) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL ,

stu_sex enum(‘男’,‘女’) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT ‘男’ ,

stu_birth date NULL DEFAULT NULL ,

stu_pic varchar(22) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL ,

cla_id int(11) NULL DEFAULT NULL ,

PRIMARY KEY (stu_id),

FOREIGN KEY (cla_id) REFERENCES classes (cla_id) ON DELETE CASCADE ON UPDATE CASCADE,

FOREIGN KEY (ope_id) REFERENCES operator (ope_id) ON DELETE CASCADE ON UPDATE CASCADE,

UNIQUE INDEX uni_no (stu_no) USING BTREE ,

UNIQUE INDEX uni_ope (ope_id) USING BTREE ,

INDEX fk_stu_cla (cla_id) USING BTREE ,

INDEX fk_stu_ope (ope_id) USING BTREE

)

ENGINE=InnoDB

DEFAULT CHARACTER SET=utf8 COLLATE=utf8_general_ci

AUTO_INCREMENT=13

ROW_FORMAT=COMPACT

;

CREATE DEFINER=root@localhost TRIGGER TG_3 AFTER DELETE ON NewTable

FOR EACH ROW BEGIN

DELETE FROM operator WHERE ope_id = old.ope_id;

END;

成绩表：

CREATE TABLE NewTable (

sco_id int(11) NOT NULL AUTO_INCREMENT ,

sco_daily float NULL DEFAULT 0 ,