logindialog.java

来自「一个网吧管理系统程序」· Java 代码 · 共 163 行

package bar;

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

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class loginDialog extends JDialog {
  JPanel panel1 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JLabel jLabel2 = new JLabel();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JLabel jLabel3 = new JLabel();
  JPasswordField jPasswordField1 = new JPasswordField();
  BorderLayout borderLayout1 = new BorderLayout();

  public loginDialog(mainFrame frame, String title, boolean modal) {
    super(frame, title, modal);
    Frame1 = frame;
    this.setLocation(250,200);
    try {
      jbInit();
      pack();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  public loginDialog() {
    this(null, "", false);
  }
  private void jbInit() throws Exception {
    panel1.setLayout(null);
    this.getContentPane().setLayout(borderLayout1);

    panel1.setPreferredSize(new Dimension(300, 200));
    panel1.setRequestFocusEnabled(true);

    jLabel3.setFont(new java.awt.Font("Serif", 1, 16));
    jLabel3.setForeground(Color.blue);
    jLabel3.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel3.setText("欢迎查询，请输卡号、密码");
    jLabel3.setBounds(new Rectangle(0, 10, 300, 30));

    jLabel1.setFont(new java.awt.Font("Serif", 1, 13));
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setText("卡号：");
    jLabel1.setBounds(new Rectangle(80, 60, 45, 25));

    jTextField1.setText("88888888");
    jTextField1.setBounds(new Rectangle(125, 60, 95, 25));

    jLabel2.setFont(new java.awt.Font("Serif", 1, 13));
    jLabel2.setText("密码：");
    jLabel2.setBounds(new Rectangle(80, 110, 45, 25));

    jPasswordField1.setText("88888888");
    jPasswordField1.setBounds(new Rectangle(125, 110, 95, 25));

    jButton1.setBounds(new Rectangle(75, 150, 60, 25));
    jButton1.setText("确定");
    jButton1.addActionListener(new loginDialog_jButton1_actionAdapter(this));
    jButton2.setBounds(new Rectangle(165, 150, 60, 25));
    jButton2.setText("重置");
    jButton2.addActionListener(new loginDialog_jButton2_actionAdapter(this));

    getContentPane().add(panel1, BorderLayout.CENTER);
    panel1.add(jLabel2, null);
    panel1.add(jLabel3, null);
    panel1.add(jPasswordField1, null);
    panel1.add(jTextField1, null);
    panel1.add(jLabel1, null);
    panel1.add(jButton1, null);
    panel1.add(jButton2, null);

    con = barConnect.getconn();
  }

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

  void jButton1_actionPerformed(ActionEvent e) {
    try{
      if(jTextField1.getText().trim()!= null){
        stmt = con.createStatement();
        String loginQuery =  "";
        String passwordtemp = "";
        for(int i=0;i<jPasswordField1.getPassword().length;i++)
        {
          passwordtemp += jPasswordField1.getPassword()[i];
        }
        loginQuery = "select * from Card where CardID = " +
                                    Integer.parseInt(jTextField1.getText().trim()) +
                                    " and password = "+passwordtemp;
        ResultSet rs = stmt.executeQuery(loginQuery);
        if (rs.next()) {
          Frame1.login_true();
          Frame1.SetCardID(Integer.parseInt(jTextField1.getText().trim()));
          rs.close();
          con.close();
          this.hide();
          return;
        }
        else{
          Frame1.login_false();
          jTextField1.setText("卡号或者密码错误。");
        }
      }
    }
    catch(SQLException ex){
      System.out.print("系统或者输进数据错误！"+ex.toString());
    }
  }

  protected void processWindowEvent(WindowEvent e) {
   super.processWindowEvent(e);
   if (e.getID() == WindowEvent.WINDOW_CLOSING) {
     Frame1.login_false();
     this.hide();
   }
 }

  private Connection con;
  private mainFrame Frame1;
  private Statement stmt;
}

class loginDialog_jButton2_actionAdapter implements java.awt.event.ActionListener {
  loginDialog adaptee;

  loginDialog_jButton2_actionAdapter(loginDialog adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}

class loginDialog_jButton1_actionAdapter implements java.awt.event.ActionListener {
  loginDialog adaptee;

  loginDialog_jButton1_actionAdapter(loginDialog adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}