login1dialog.java

简单的学生管理系统。。用JBUILER和SQL2000。

package studentgl;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;


/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Login1Dialog extends JDialog {
  JPanel panel1 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JPasswordField jPasswordField1 = new JPasswordField();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  private  Connection con;
  private  mainFrame Frame1;
  private  Statement stmt;


  public Login1Dialog(mainFrame frame, String title, boolean modal) {
    super(frame, title, modal);
     Frame1=frame;
    this.setLocation(309,239);
    try {
      jbInit();
      pack();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  public Login1Dialog() {
    this(null, "", false);
  }
  private void jbInit() throws Exception {
    panel1.setLayout(null);
    jLabel1.setFont(new java.awt.Font("Serif", 1, 20));
    jLabel1.setForeground(Color.red);
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setText("请输入教师号、密码");
    jLabel1.setBounds(new Rectangle(-1, 0, 401, 43));
    jLabel2.setFont(new java.awt.Font("Serif", 1, 16));
    jLabel2.setForeground(SystemColor.textHighlight);
    jLabel2.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel2.setText("教师号：");
    jLabel2.setBounds(new Rectangle(70, 69, 78, 24));
    jLabel3.setBounds(new Rectangle(67, 117, 78, 24));
    jLabel3.setText("密   码：");
    jLabel3.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel3.setForeground(SystemColor.textHighlight);
    jLabel3.setFont(new java.awt.Font("Serif", 1, 16));
    jTextField1.setFont(new java.awt.Font("Serif", 0, 14));
    jTextField1.setText("");
    jTextField1.setBounds(new Rectangle(165, 68, 150, 25));
    jPasswordField1.setText("");
    jPasswordField1.setBounds(new Rectangle(165, 116, 150, 26));
    jButton1.setBounds(new Rectangle(78, 176, 73, 25));
    jButton1.setFont(new java.awt.Font("Serif", 0, 12));
    jButton1.setForeground(Color.red);
    jButton1.setText("确定");
    jButton1.addActionListener(new Login1Dialog_jButton1_actionAdapter(this));
    jButton2.setBounds(new Rectangle(255, 173, 73, 25));
    jButton2.setFont(new java.awt.Font("Serif", 0, 12));
    jButton2.setForeground(Color.orange);
    jButton2.setText("重设");
    jButton2.addActionListener(new Login1Dialog_jButton2_actionAdapter(this));
    getContentPane().add(panel1);
    panel1.add(jLabel1, null);
    panel1.add(jPasswordField1, null);
    panel1.add(jTextField1, null);
    panel1.add(jLabel2, null);
    panel1.add(jLabel3, null);
    panel1.add(jButton1, null);
    panel1.add(jButton2, null);
    con = connect.getconn();
  }

  void jButton1_actionPerformed(ActionEvent e) {
    try {
    con=connect.getconn();
    stmt=con.createStatement();
    String teID=jTextField1.getText();
    String passwordtemp=jPasswordField1.getText();
    String loginQuery="select * from TeacherInfo where TeID=" +teID+" and TePWD = " +passwordtemp;
    ResultSet rs = stmt.executeQuery(loginQuery);
    if(rs.next()) {
      Frame1.TeID=teID;
      Frame1.login=true;
       this.hide();
      return;
   }
    else {
   Frame1.login_false();
   jTextField1.setText("学号或者密码错误。");}
    }catch(SQLException ex){
     System.out.print("系统或者输进数据错误！"+ex.toString());
   }

  }

  void jButton2_actionPerformed(ActionEvent e) {
    jTextField1.setText("");
    jPasswordField1.setText("");
  }
}

class Login1Dialog_jButton1_actionAdapter implements java.awt.event.ActionListener {
  Login1Dialog adaptee;

  Login1Dialog_jButton1_actionAdapter(Login1Dialog adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}

class Login1Dialog_jButton2_actionAdapter implements java.awt.event.ActionListener {
  Login1Dialog adaptee;

  Login1Dialog_jButton2_actionAdapter(Login1Dialog adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}