201906G102/StuUpDiag.java

package C;


/*
 * 修改学生
 */
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Statement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.*;

public class StuUpDiag extends JDialog implements ActionListener {
    //定义我需要的swing组件
    JLabel jl1,jl2,jl3,jl4,jl5,jl6;
    JTextField jf1,jf2,jf3,jf4,jf5,jf6;
    JPanel jp1,jp2,jp3;
    JButton jb1,jb2;
    //owner代笔父窗口,title是窗口的名字,modal指定是模式窗口()或者非模式窗口
    public StuUpDiag(Frame owner,String title, boolean modal,StuModel sm,int rowNum){
        //调用父类方法
        super(owner,title,modal);
        
        jl1 = new JLabel("设备ID");
        
        jl2 = new JLabel("设备名称");
        
        jl3 = new JLabel("大小");    
        jl4 = new JLabel("重量");
        jl5 = new JLabel("供应商");
        
        
        
        jl6 = new JLabel("价格");
        
        
        jf1 = new JTextField(10);jf1.setText((sm.getValueAt(rowNum, 0)).toString());
        jf2 = new JTextField(10);jf2.setText((String)sm.getValueAt(rowNum, 1));
        jf3 = new JTextField(10);jf3.setText(sm.getValueAt(rowNum, 2).toString());
        jf4 = new JTextField(10);jf4.setText((sm.getValueAt(rowNum, 3)).toString());    
        jf5 = new JTextField(10);jf5.setText((String)sm.getValueAt(rowNum, 4));
        jf6 = new JTextField(10);jf6.setText((String)sm.getValueAt(rowNum, 5));
        
        jb1 = new JButton("修改");
        jb1.addActionListener(this);
        jb2 = new JButton("取消");
        
        jp1 = new JPanel();
        jp2 = new JPanel();
        jp3 = new JPanel();
        
        //设置布局
        jp1.setLayout(new GridLayout(6,1));
        jp2.setLayout(new GridLayout(6,1));
        
        jp3.add(jb1);
        jp3.add(jb2);
        
        jp1.add(jl1);
        jp1.add(jl2);
        jp1.add(jl3);
        jp1.add(jl4);
        jp1.add(jl5);
        jp1.add(jl6);
        
        jp2.add(jf1);
        jp2.add(jf2);
        jp2.add(jf3);
        jp2.add(jf4);
        jp2.add(jf5);
        jp2.add(jf6);
        
        this.add(jp1, BorderLayout.WEST);
        this.add(jp2, BorderLayout.CENTER);
        this.add(jp3, BorderLayout.SOUTH);
        
        this.setSize(300,200);
        this.setVisible(true);
    }
    @Override
    public void actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub
        if(e.getSource() == jb1){
            Connection ct = null;
            PreparedStatement pstmt = null;
            ResultSet rs = null;
            
            try{
                //1.加载驱动
                Class.forName("com.mysql.jdbc.Driver");
                System.out.println("加载成功");
                //2.连接数据库
                //定义几个常量
                String url = "jdbc:mysql://localhost:3306/spdb1";
                String user = "root";
                String passwd = "qsefthuko";
                ct = DriverManager.getConnection(url,user,passwd);
        
                //与编译语句对象
                
                String strsql = "insert into stu values(?,?,?,?,?,?)";
                pstmt = ct.prepareStatement(strsql);

                //给对象赋值
                pstmt.setString(1,jf1.getText());
                pstmt.setString(2,jf2.getText());
                pstmt.setString(3,jf3.getText());
                pstmt.setString(4,jf4.getText());
                pstmt.setString(5,jf5.getText());
                pstmt.setString(6,jf6.getText());
                
                pstmt.executeUpdate();

                this.dispose();//关闭对话框
                
            }catch(Exception arg1){
                arg1.printStackTrace();
            }finally{
                try{
                if(rs!=null){
                rs.close();
                rs = null;
                    }
                if(pstmt != null){
                pstmt.close();
                pstmt = null;
                    }
                if(ct != null){
                ct.close();
                ct = null;
                    }                
                }catch(Exception arg2){
                    arg2.printStackTrace();
                }
            }
            
        }
        
    }
    
    
}