编写一个简单带有图形界面的SSMS，主要实现增删改查功能

开发工具：IntelliJIDEA、mysql（8.0版本）

需要下载数据库驱动，版本必须和数据库版本一致。驱动官网下载地址

项目总构架：

                1、登录页面

                2、欢迎主页面

                3、添加学生信息

                4、删除学生信息

                5、学生列表信息

                6、查询学生信息

                7、修改学生信息

一、创建一个命名为lib文件夹来放数据库驱动，然后点右击Add加载jar包

二、如果想要用图片来作为背景用，可以创建一个images放图片，然后在view包再修改各个类的背景图片路径

三、创建数据库命名为ssms

四、用户名：admin

      初始密码：111111

注：登录密码和用户名可以任意修改

连接数据库一个工具类，这里的User和PWD要改为你自己的数据库用户名和密码

package utils;

import java.sql.*;

/**
 * @author shkstart
 * @create 2021-07-11 13:04
 */
public class DbUtil
{
    private static final String User = "*****"; //数据库用户名
    private static final String PWD = "******"; //数据库密码
    private static final String URL = "jdbc:mysql://localhost:3306/ssms"; 
    /**
     * jdbc:mysql:// 是指JDBC连接方式；
        localhost: 是指你的本机地址；
        3306 ：SQL数据库的端口号；
        ssms ：就是你的数据库名字
    */
    private static final String DRIVER = "com.mysql.cj.jdbc.Driver"; //驱动
        static
        {
            try
            {
                Class.forName(DRIVER);
            }
            catch (ClassNotFoundException e)
            {
                e.printStackTrace();
            }
        }
        public static Connection getConnection()
        {
            try
            {
                return DriverManager.getConnection(URL,User,PWD);
            }
            catch (SQLException e)
            {
                e.printStackTrace();
            }
                return null;
        }
        public static void close(Connection connection, Statement statement)
        {
            if (statement!=null)
            {
                try
                {
                    statement.close();
                }
                catch (SQLException e)
                {
                    e.printStackTrace();
                }
            }
        }
        public static void close(Connection connection, Statement statement, ResultSet rs)
        {
            if (statement!=null)
            {
                try
                {
                    statement.close();
                }
                catch (SQLException e)
                {
                    e.printStackTrace();
                }
            }
            if (connection!=null)
            {
                try
                {
                    connection.close();
                }
                catch (SQLException e)
                {
                    e.printStackTrace();
                }
            }
            if (rs!=null)
            {
                try
                {
                    rs.close();
                }
                catch (SQLException e)
                {
                    e.printStackTrace();
                }
            }
        }
}

操作数据库里学生信息类

package dao;
import model.Student;
import utils.DbUtil;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

/**
 * @author shkstart
 * @create 2021-07-11 13:01
 */
public class StuDao
{
    public boolean addStu(Student student)
    {
        Connection connection = DbUtil.getConnection();
        String sql = "INSERT INTO student(id,name,grade,departments,phone)values(?,?,?,?,?)";
        try
        {
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,student.getId());
            ps.setString(2,student.getName());
            ps.setString(3,student.getGrade());
            ps.setString(4,student.getDepartments());
            ps.setString(5,student.getPhone());
                if (!ps.execute())
                {
                    DbUtil.close(connection,ps);
                    return true;
                }
        }
        catch (SQLException e)
        {
            e.printStackTrace();
        }
            return false;
    }
    public boolean delStu(String id)
    {
        Connection connection = DbUtil.getConnection();
        String sql = "delete from student where id=?";
        try
        {
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,id);
                if (!ps.execute())
                {
                    DbUtil.close(connection,ps);
                    return true;
                }
        }
        catch (SQLException e)
        {
            e.printStackTrace();
        }
            return false;
    }
    public boolean updateStu(Student student)
    {
        Connection connection = DbUtil.getConnection();
        String sql = "update student set name=?,grade=?,departments=?,phone=? where id=?";
        try
        {
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,student.getName());
            ps.setString(2,student.getGrade());
            ps.setString(3,student.getDepartments());
            ps.setString(4,student.getPhone());
            ps.setString(5,student.getId());
                if (!ps.execute())
                {
                    DbUtil.close(connection,ps);
                    return true;
                }
        }
        catch (SQLException e)
        {
            e.printStackTrace();
        }
            return false;
    }
    public Student findStu(String id)
    {
        Connection connection = DbUtil.getConnection();
        String sql = "SELECT id,name,grade,departments,phone FROM student where id=?";
        try
        {
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,id);
            ResultSet rs = ps.executeQuery();
                if (rs.next())
                {
                    Student student = new Student(rs.getString("id"),rs.getString("name"),rs.getString("grade"),rs.getString("departments"),rs.getString("phone"));
                    DbUtil.close(connection,ps);
                        return student;
                }
        }
        catch (SQLException e)
        {
            e.printStackTrace();
        }
            return null;
    }
    public ArrayList<Student>listStu()
    {
        ArrayList<Student> students = new ArrayList<>();
        Connection connection = DbUtil.getConnection();
        String sql = "SELECT id,name,grade,departments,phone FROM student";
        try
        {
            PreparedStatement ps = connection.prepareStatement(sql);
            ResultSet rs =  ps.executeQuery();
                while (rs.next())
                {
                    Student student = new Student(rs.getString("id"),rs.getString("name"),rs.getString("grade"),rs.getString("departments"),rs.getString("phone"));
                    students.add(student);

                }
                DbUtil.close(connection,ps);
                    return students;
        }
        catch (SQLException e)
        {
            e.printStackTrace();
        }
            return null;
    }
}

项目全部代码请参考：链接：https://pan.baidu.com/s/10xrR2ZMhLZPdlcMWR2nU-Q 
提取码：linv