frame_card_guashi.java~5~

学生上机系统,请大家多多指教.以后会发

package student_computer;

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

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2006</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Frame_card_guashi extends JFrame {
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JLabel jLabel4 = new JLabel();
  JTextField jTextField2 = new JTextField();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();

  public Frame_card_guashi() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 32));
    jLabel1.setText("卡号挂失");
    jLabel1.setBounds(new Rectangle(115, 16, 148, 48));
    this.getContentPane().setLayout(null);
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel2.setText("请输入学号或者卡号：");
    jLabel2.setBounds(new Rectangle(79, 75, 212, 29));
    jLabel3.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel3.setText("学号：");
    jLabel3.setBounds(new Rectangle(79, 116, 68, 27));
    jTextField1.setText("");
    jTextField1.setBounds(new Rectangle(170, 116, 106, 27));
    jLabel4.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel4.setText("卡号：");
    jLabel4.setBounds(new Rectangle(79, 159, 59, 33));
    jTextField2.setText("");
    jTextField2.setBounds(new Rectangle(170, 162, 108, 27));
    jButton1.setBounds(new Rectangle(79, 211, 87, 29));
    jButton1.setFont(new java.awt.Font("Dialog", 0, 16));
    jButton1.setText("确定");
    jButton1.addActionListener(new Frame_card_guashi_jButton1_actionAdapter(this));
    jButton2.setBounds(new Rectangle(211, 213, 87, 29));
    jButton2.setFont(new java.awt.Font("Dialog", 0, 16));
    jButton2.setText("取消");
    this.getContentPane().add(jLabel1, null);
    this.getContentPane().add(jTextField1, null);
    this.getContentPane().add(jLabel3, null);
    this.getContentPane().add(jLabel2, null);
    this.getContentPane().add(jLabel4, null);
    this.getContentPane().add(jTextField2, null);
    this.getContentPane().add(jButton1, null);
    this.getContentPane().add(jButton2, null);
    this.setSize(400,300);
    this.setLocation(250,190);
  }

  void jButton1_actionPerformed(ActionEvent e) {
    String student_num=jTextField1.getText().trim();
    String card=jTextField2.getText().trim();
    if(student_num.equals("")&&card.equals(""))
    {
      JOptionPane.showMessageDialog(this,"学号和卡号不能同时为空!!!","提示",JOptionPane.PLAIN_MESSAGE);
      return;
    }
    try{
     String driverName = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
      String dbURL = "jdbc:microsoft:sqlserver://210.30.104.11:1433; DatabaseName=student_computer";
       String userName = "xueli";
      String userPwd = "gejingguo";

      Class.forName(driverName);
      Connection con = DriverManager.getConnection(dbURL, userName, userPwd);
       PreparedStatement stmt=null;
       //System.out.println(apartid+dom_id+date);
       if(student_num.equals(""))
       {
         stmt=con.prepareStatement("update card set card_state='挂失' where card_number=?");
          stmt.setString(1,card);

       }
       else
        {
          stmt = con.prepareStatement(
             "update card set card_state='挂失' where student_number=?");
          stmt.setString(1,student_num);

        }
          int a=stmt.executeUpdate();
         if(a!=0)
         {
           JOptionPane.showMessageDialog(this,"挂失成功!!!","提示",JOptionPane.PLAIN_MESSAGE);
           return;
         }
         else
         {
           JOptionPane.showMessageDialog(this,"挂失失败，请确认有该记录!!!","提示",JOptionPane.PLAIN_MESSAGE);
           return;
         }
    }catch(Exception e4)
    {
      //JOptionPane.showMessageDialog(this,"挂失失败，请确认有该记录!!!","提示",JOptionPane.PLAIN_MESSAGE);
     // return;
     e4.printStackTrace();
    }

  }
}

class Frame_card_guashi_jButton1_actionAdapter implements java.awt.event.ActionListener {
  Frame_card_guashi adaptee;

  Frame_card_guashi_jButton1_actionAdapter(Frame_card_guashi adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}