userupdate.java~1~

虚拟的图书管理系统

package bookmanager;

import javax.swing.*;
import com.borland.jbcl.layout.*;
import java.awt.*;
import java.sql.*;
import java.awt.event.*;
/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class userUpdate extends JFrame {
  ResultSet rs;    //定义结果集
  private DBManager db =new DBManager();//定义数据库操作对象


  XYLayout xYLayout1 = new XYLayout();
  JButton jButtonCancel = new JButton();
  JLabel jLabel2 = new JLabel();
  JButton jButtonOK = new JButton();
  JPasswordField jPasswordold = new JPasswordField();
  JLabel jLabel1 = new JLabel();
  JTextField jTextFieldusername = new JTextField();
  JPasswordField jPasswordnew = new JPasswordField();
  JLabel jLabel3 = new JLabel();

  public userUpdate() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  public static void main(String[] args) {
    userUpdate userUpdate = new userUpdate();
  }
  private void jbInit() throws Exception {
    jTextFieldusername.setText("");
    jTextFieldusername.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel1.setText("用户名");
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 16));
    jPasswordold.setText("");
    jButtonOK.setText("更新");
    jButtonOK.addMouseListener(new userUpdate_jButtonOK_mouseAdapter(this));
    jButtonOK.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel2.setText("原密码");
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 16));
     jButtonCancel.setText("取消");
    jButtonCancel.addMouseListener(new userUpdate_jButtonCancel_mouseAdapter(this));
    jButtonCancel.setFont(new java.awt.Font("Dialog", 0, 16));
    this.getContentPane().setLayout(xYLayout1);
    xYLayout1.setWidth(400);
    xYLayout1.setHeight(312);
    jLabel3.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel3.setText("新密码");
    jPasswordnew.setFont(new java.awt.Font("Dialog", 0, 16));
    jPasswordnew.setText("");
    this.getContentPane().add(jTextFieldusername,  new XYConstraints(216, 35, 111, 38));
    this.getContentPane().add(jLabel2, new XYConstraints(66, 102, 80, 34));
    this.getContentPane().add(jPasswordold, new XYConstraints(217, 98, 111, 35));
    this.getContentPane().add(jLabel1, new XYConstraints(65, 36, 99, 34));
    this.getContentPane().add(jButtonCancel, new XYConstraints(209, 258, 94, 30));
    this.getContentPane().add(jButtonOK, new XYConstraints(91, 257, 91, 31));
    this.getContentPane().add(jPasswordnew,  new XYConstraints(216, 151, 114, 31));
    this.getContentPane().add(jLabel3,  new XYConstraints(69, 160, 62, 30));
  }

  void jButtonCancel_mouseClicked(MouseEvent e) {
             this.dispose();
  }

  void jButtonOK_mouseClicked(MouseEvent e) {
       String strSQL ;
           strSQL="select * from user where username='"+jTextFieldusername.getText().trim() +"' and password='"+jPasswordold.getText().trim()+"'";
                  rs=db.getResult(strSQL) ;
           if(rs.equals(null ))
             {JOptionPane.showMessageDialog(null,"用户名不存在，或原密码不正确！");
                      }
           else
             {
              if(!jPasswordold.getText().trim().equals(jPasswordnew.getText().trim()))
               {JOptionPane.showMessageDialog(null,"两次输入的密码不一致！");
                return;
                }
               else
               {
                 strSQL="update user set password='"+jPasswordnew.getText().trim()+"' where username='"+jTextFieldusername.getText().trim() +"'";
                 if(db.executeSql(strSQL))
                    {JOptionPane.showMessageDialog(null,"成功更新！"); }
                 else
                    { JOptionPane.showMessageDialog(null," 更新失败，请重新操作！");      }
               }

             }

  }
}

class userUpdate_jButtonCancel_mouseAdapter extends java.awt.event.MouseAdapter {
  userUpdate adaptee;

  userUpdate_jButtonCancel_mouseAdapter(userUpdate adaptee) {
    this.adaptee = adaptee;
  }
  public void mouseClicked(MouseEvent e) {
    adaptee.jButtonCancel_mouseClicked(e);
  }
}

class userUpdate_jButtonOK_mouseAdapter extends java.awt.event.MouseAdapter {
  userUpdate adaptee;

  userUpdate_jButtonOK_mouseAdapter(userUpdate adaptee) {
    this.adaptee = adaptee;
  }
  public void mouseClicked(MouseEvent e) {
    adaptee.jButtonOK_mouseClicked(e);
  }
}