毕业课题管理系统【GUI/Swing+MySQL】（Java课设）

import javax.swing.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; /** * 增加信息 */ public class Add extends JFrame { public Add() { ////构造方法中界面设计 this.setTitle("增加课题界面"); this.setBounds(100, 100, 500, 700); this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);//设置关闭子窗口但是不关闭父类窗口 this.setVisible(true); this.setLayout(null); JLabel jLabel = new JLabel("增加课题信息界面"); JLabel jLabel1 = new JLabel("课题编号："); JLabel jLabel2 = new JLabel("课题名称："); JLabel jLabel3 = new JLabel("导师："); JLabel jLabel4 = new JLabel("选课学生："); JLabel jLabel5 = new JLabel("审核是否通过："); JButton jb1 = new JButton("新增"); JTextField field1 = new JTextField(18); JTextField field2 = new JTextField(18); JTextField field3 = new JTextField(18); JTextField field4 = new JTextField(18); JTextField field5 = new JTextField(18); JPanel jPanel = new JPanel(); JPanel jPanel1 = new JPanel(); JPanel jPanel2 = new JPanel(); JPanel jPanel3 = new JPanel(); JPanel jPanel4 = new JPanel(); JPanel jPanel5 = new JPanel(); JPanel jPanel0 = new JPanel(); jPanel.add(jLabel); jPanel1.add(jLabel1); jPanel1.add(field1); jPanel2.add(jLabel2); jPanel2.add(field2); jPanel3.add(jLabel3); jPanel3.add(field3); jPanel4.add(jLabel4); jPanel4.add(field4); jPanel5.add(jLabel5); jPanel5.add(field5); jPanel0.add(jb1); jPanel.setBounds(0, 80, 450, 50); jPanel1.setBounds(0, 150, 450, 50); jPanel2.setBounds(0, 220, 450, 50); jPanel3.setBounds(0, 290, 450, 50); jPanel4.setBounds(0, 360, 450, 50); jPanel5.setBounds(0, 430, 450, 50); jPanel0.setBounds(0, 500, 450, 50); this.add(jPanel); this.add(jPanel1); this.add(jPanel2); this.add(jPanel3); this.add(jPanel4); this.add(jPanel5); this.add(jPanel0); //添加按钮事件 jb1.addActionListener (new ActionListener() { public void actionPerformed(ActionEvent e) { //注册驱动 使用驱动连接数据库 Connection con = null; PreparedStatement stmt = null; ResultSet rs = null; try { con = JDBCUtils.getConnection(); String sql = "insert into bykt values(?,?,?,?,?)"; stmt = con.prepareStatement(sql); stmt.setString(1, field1.getText()); stmt.setString(2, field2.getText()); stmt.setString(3, field3.getText()); stmt.setString(4, field4.getText()); stmt.setString(5, field5.getText()); stmt.execute(); JOptionPane.showMessageDialog(null, "增加成功！"); } catch (Exception e2) { // TODO Auto-generated catch block e2.printStackTrace(); }finally { try { JDBCUtils.close(rs, stmt, con); } catch (SQLException throwables) { throwables.printStackTrace(); } } } }); } }