学生个人信息管理系统(mysql)
2021/10/23 19:09:54
本文主要是介绍学生个人信息管理系统(mysql),对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
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
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