framedenglu.java

班级管理系统

package myproject;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.sql.*;
import javax.swing.*;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JButton;
import java.awt.Rectangle;
import javax.swing.JLabel;
import javax.swing.JTextField;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;

public class Framedenglu extends JFrame {
    JPanel contentPane;
    JButton jButton1 = new JButton();
    JButton jButton2 = new JButton();
    JLabel jLabel1 = new JLabel();
    JLabel jLabel2 = new JLabel();
    JTextField jTextField1 = new JTextField();
    JPasswordField jPasswordField1 = new JPasswordField();
    public Framedenglu() {
        try {
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            jbInit();
            this.setResizable(false);
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {
        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(null);
        setSize(new Dimension(400, 300));
        setTitle("班级管理系统");
        jButton1.setBounds(new Rectangle(88, 217, 68, 32));
        jButton1.setToolTipText("");
        jButton1.setText("登陆");
        jButton1.addActionListener(new Framedenglu_jButton1_actionAdapter(this));
        jButton2.setBounds(new Rectangle(199, 216, 67, 33));
        jButton2.setToolTipText("");
        jButton2.setText("取消");
        jButton2.addActionListener(new Framedenglu_jButton2_actionAdapter(this));
        jLabel1.setFont(new java.awt.Font("宋体", Font.PLAIN, 20));
        jLabel1.setToolTipText("");
        jLabel1.setText("用户名");
        jLabel1.setBounds(new Rectangle(74, 37, 67, 38));
        jLabel2.setFont(new java.awt.Font("宋体", Font.PLAIN, 20));
        jLabel2.setToolTipText("");
        jLabel2.setText("密码");
        jLabel2.setBounds(new Rectangle(75, 128, 60, 31));
        jTextField1.setBorder(BorderFactory.createLoweredBevelBorder());
        jTextField1.setBounds(new Rectangle(170, 48, 85, 31));
        jPasswordField1.setBounds(new Rectangle(171, 133, 81, 25));
        contentPane.add(jButton1);
        contentPane.add(jButton2);
        contentPane.add(jTextField1);
        contentPane.add(jLabel1);
        contentPane.add(jLabel2);
        contentPane.add(jPasswordField1);

    }

    public void jButton1_actionPerformed(ActionEvent e) {
             Framezhu f=new Framezhu();
             f.setSize(800,600);
             f.setLocation(200,100);
             DB db=new DB();
             String strobj1 = jTextField1.getText();
             String strobj2 =jPasswordField1.getText();
             String str="select * from denglu where name='"+strobj1+"' and password='"+strobj2+"'";
             ResultSet rs=db.Select(str);
            try {
                if (rs.next()) {
                    JOptionPane.showMessageDialog(this, "登陆成功");
                    f.show();
                    this.dispose();
                }
                else
                {
                    JOptionPane.showMessageDialog(this,"登陆失败,请重新输入");
                    jTextField1.setText("");
                this.getFocusListeners();

                }
            } catch (SQLException ex) {
            }

    }

    public void jButton2_actionPerformed(ActionEvent e) {
        this.dispose();
    }
}


class Framedenglu_jButton2_actionAdapter implements ActionListener {
    private Framedenglu adaptee;
    Framedenglu_jButton2_actionAdapter(Framedenglu adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton2_actionPerformed(e);
    }
}


class Framedenglu_jButton1_actionAdapter implements ActionListener {
    private Framedenglu adaptee;
    Framedenglu_jButton1_actionAdapter(Framedenglu adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton1_actionPerformed(e);
    }
}