frame2.java~68~

提供了一种注册机算法的实现. 里面共有两份分别是题库的代码和注册机的代码

package dcwork;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: DISCOVERY</p>
 * @author not attributable
 * @version 1.0
 */

public class Frame2 extends JFrame {
 public String a;
  JPasswordField jPasswordField1 = new JPasswordField();
  JTextField jTextField1 = new JTextField();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JCheckBox jCheckBox1 = new JCheckBox();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();


  public Frame2() {
    try {
      jbInit();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  void jbInit() throws Exception {
    jPasswordField1.setFont(new java.awt.Font("Dialog", 1, 15));
    jPasswordField1.setForeground(Color.red);
    //jPasswordField1.setText("");
    jPasswordField1.setBounds(new Rectangle(133, 90, 161, 32));
    this.setSize(new Dimension(380,300));
    this.setLocationRelativeTo(null);
    this.setDefaultCloseOperation(EXIT_ON_CLOSE);
    this.setLocale(java.util.Locale.getDefault());
    this.setResizable(true);
    this.setState(Frame.NORMAL);
    this.setTitle("题库登陆界面");
    this.getContentPane().setLayout(null);
    this.setResizable(false);
    ///////////按键设置焦点
    this.getRootPane().setDefaultButton(jButton1);
    ///////////按键设置焦点
    jTextField1.setFont(new java.awt.Font("幼圆", 1, 15));
    jTextField1.setForeground(Color.blue);
    //jTextField1.setText("");
    jTextField1.setBounds(new Rectangle(134, 45, 160, 33));


    jButton1.setBounds(new Rectangle(86, 185, 101, 38));
    jButton1.setFont(new java.awt.Font("Dialog", 0, 15));
    jButton1.setFocusPainted(true);
    jButton1.setText("确定");
    jButton1.addActionListener(new Frame2_jButton1_actionAdapter(this));
    jButton2.setBounds(new Rectangle(209, 185, 100, 37));
    jButton2.setFont(new java.awt.Font("Dialog", 0, 15));
    jButton2.setText("取消");
    jButton2.addActionListener(new Frame2_jButton2_actionAdapter(this));
    jCheckBox1.setFont(new java.awt.Font("Dialog", 1, 15));
    jCheckBox1.setActionCommand("记住密码用户");
    jCheckBox1.setText("记住密码用户");
    jCheckBox1.setBounds(new Rectangle(133, 133, 147, 35));
    jLabel1.setFont(new java.awt.Font("幼圆", 1, 16));
    jLabel1.setText("用户：");
    jLabel1.setBounds(new Rectangle(65, 49, 55, 21));
    jLabel2.setFont(new java.awt.Font("幼圆", 1, 16));
    jLabel2.setText("密码：");
    jLabel2.setBounds(new Rectangle(67, 93, 51, 23));

    this.getContentPane().add(jPasswordField1, null);
    this.getContentPane().add(jCheckBox1, null);
    this.getContentPane().add(jLabel1, null);
    this.getContentPane().add(jLabel2, null);
    this.getContentPane().add(jTextField1, null);
    this.getContentPane().add(jButton2, null);
    this.getContentPane().add(jButton1, null);
    /////////////////////////////////////////////////////////////记住密码(读出)
try{
 Dcyh jz= new Dcyh();
 Statement stemtjz = jz.stmt;
 Connection fdd=jz.con;
//System.out.println("成功");
 ResultSet rsjz=stemtjz.executeQuery("SELECT * FROM jzmm WHERE nu='10'");
  while(rsjz.next())
  {String vv1=rsjz.getString(4);
String vv2=rsjz.getString(3);
String vv3=rsjz.getString(2);
    System.out.print(vv1);
    System.out.print(vv2);
    System.out.print(vv3);
if(vv1!=a){
System.out.print(2);
jTextField1.setText(vv2);
jPasswordField1.setText(vv3);
 jCheckBox1.isSelected() ;
}
/*else{
System.out.print(3);
jTextField1.setText("");
jPasswordField1.setText("");
}*/
  }
}
catch (SQLException e5a123) {System.err.println(e5a123);}

////////////////////////////////////////////////////////////////记住密码(读出)


  }

  public static void main(String[] args) {
    Frame2 frame2 = new Frame2();
  }

  void jButton1_actionPerformed(ActionEvent e) {
////////////////////////////////////////////用户密码验证(按钮事件)
//int choice= JOptionPane.showConfirmDialog(this,"确定"+name+"进入!","登录",JOptionPane.YES_NO_OPTION,JOptionPane.WARNING_MESSAGE);
//if(choice==JOptionPane.YES_OPTION){
 try{
 Dcyh jr = new Dcyh();
 Statement stemtjr = jr.stmt;
 Connection fd=jr.con;
//System.out.println("成功");
 ResultSet rsjr=stemtjr.executeQuery("SELECT * FROM yhxx WHERE 用户名='"+jTextField1.getText().trim()+"' and 用户密码='"+jPasswordField1.getText().trim()+"'");
  if(rsjr.next())
  {String vv=rsjr.getString(4);
   //System.out.println(vv);
     a=vv;
Frame4 a1=new Frame4(a);
a1.setVisible(true);
this.setVisible(false);
//System.out.println("成功");
 }
    else{
    JOptionPane.showMessageDialog(this,"你输入的用户名或密码有误!请重新输入.","出错信息!",JOptionPane.WARNING_MESSAGE);
    jTextField1.setText("");
       jPasswordField1.setText("");
       /////////设置焦点
          jTextField1.grabFocus();
          /////////设置焦点

         }fd.close();
   }
   catch(SQLException e99){System.out.println(e99);}

   /*///////////////////////////  */
 //////////////////////////////////////////////用户密码验证(按钮事件)

   /////////////////////////////////////////////记住密码登陆(输入)
   String tt1=jTextField1.getText();
   String tt2=jPasswordField1.getText();
   String tt3;
   if(jCheckBox1.isSelected())
   {
   tt3="a";
    Dcyh dcb = new Dcyh();
    dcb.connection();
     Statement sb = dcb.stmt;
    Connection fd2=dcb.con;
       try {
       sb.executeUpdate("update  jzmm set 帐号='"+tt1+"',密码='"+tt2+"',标记='"+tt3+"' where nu='10'");

                   System.out.println("成功");
                fd2.close(); }
                   catch (SQLException e5a1) {System.err.println(e5a1);}}
  else{
tt3="b";
    Dcyh dcb2 = new Dcyh();
    dcb2.connection();
     Statement sb2 = dcb2.stmt;
     Connection fd3=dcb2.con;
       try {
       sb2.executeUpdate("update  jzmm set 标记='"+tt3+"' where nu='10'");

                   System.out.println("成功");
                fd3.close(); }
                   catch (SQLException e5a12) {System.err.println(e5a12);}
}
///////////////////////////////////////////////记住密码登陆(输入)

 }




  void jButton2_actionPerformed(ActionEvent e) {
    Frame1 a=new Frame1();
        a.setVisible(true);
    this.setVisible(false);

  }

  void jButton3_actionPerformed(ActionEvent e) {
   jTextField1.setText("");
       jPasswordField1.setText("");
  }
}

class Frame2_jButton1_actionAdapter implements java.awt.event.ActionListener {
  Frame2 adaptee;

  Frame2_jButton1_actionAdapter(Frame2 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}

class Frame2_jButton2_actionAdapter implements java.awt.event.ActionListener {
  Frame2 adaptee;

  Frame2_jButton2_actionAdapter(Frame2 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}