JAVA用户怎么登录图形用户界面程序？

制作一个类似于QQ登陆的界面，以下数据库部分，你可以自己修该下，默认为Access；

import java.awt.*

import javax.swing.*

import java.awt.event.*

import java.sql.*

class JieMian extends JFrame；

{

JFrame f

JLabel lb1

JLabel lb2

JTextField tf

JPasswordField pwd

JButton b1

JButton b2

JPanel p1

JPanel p2

Connection con

Statement stmt

String use

char passw[]=new char[10]

ResultSet rs

String k1,k2

public void init()

f=new JFrame("登陆界面")

init()

b1.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent ei)

{

try

{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver")

con=DriverManager.getConnection("jdbc:odbc:dat")

stmt=con.createStatement()

use=tf.getText()

passw=pwd.getPassword()

String passww=new String(passw)

rs=stmt.executeQuery("select * from user where 用户名='"+use+"' and  密码='"+passww+"'")

while(rs.next())

{

System.out.println(k1=rs.getString("用户名"))

System.out.println(k2=rs.getString("密码"))

}

if(k1.equals(use)&&(k2.equals(passww)))

{

JOptionPane.showMessageDialog(null,"用户登陆成功")//登陆成功

}

else

{

JOptionPane.showMessageDialog(null,"请检查用户信息，登陆失戚手败")//登侍扮录失败

}

rs.close()

stmt.close()

con.close()

}

catch (Exception ey){JOptionPane.showMessageDialog(null,"请检查用户信息，高谈嫌登陆失败")}

}

})

f.setLayout(new GridLayout(2,1,10,5))

f.setVisible(true)

f.setSize(210,150)

f.setLocation(550,300)

f.setResizable(false)

f.setDefaultCloseOperation(EXIT_ON_CLOSE)

b2.addActionListener(new ActionListener(){//58

public void actionPerformed(ActionEvent e){

f.setVisible(false)

}

})

}

}

public class DengLu

{

public static void main(String[] args)

{

new JieMian()

}

}。

什么都不说闭纳了 直接给你代码吧\x0d\x0apackage com.moliying.ui\x0d\x0aimport java.awt.BorderLayout\x0d\x0aimport java.awt.Container\x0d\x0aimport java.awt.FlowLayout\x0d\x0aimport java.awt.List\x0d\x0aimport java.awt.event.ActionEvent\x0d\x0aimport java.awt.event.ActionListener\x0d\x0aimport java.io.BufferedWriter\x0d\x0aimport java.io.FileOutputStream\x0d\x0aimport java.io.OutputStreamWriter\x0d\x0aimport java.util.ArrayList\x0d\x0aimport java.util.Arrays\x0d\x0aimport javax.swing.JButton\x0d\x0aimport javax.swing.JFrame\x0d\x0aimport javax.swing.JLabel\x0d\x0aimport javax.swing.JPanel\x0d\x0aimport javax.swing.JPasswordField\x0d\x0aimport javax.swing.JTextField\x0d\x0apublic class Login {\x0d\x0aprivate JFrame frame = new JFrame("登录")\x0d\x0aprivate Container c = frame.getContentPane()\x0d\x0aprivate JTextField username = new JTextField()\x0d\x0aprivate JPasswordField password = new JPasswordField()\x0d\x0aprivate JButton ok = new JButton("确定")\x0d\x0aprivate JButton cancel = new JButton("取消")\x0d\x0apublic Login() {\x0d\x0aframe.setSize(300, 200)\x0d\x0aframe.setBounds(450, 300, 300, 200)\x0d\x0ac.setLayout(new BorderLayout())\x0d\x0ainitFrame()\x0d\x0aframe.setVisible(true)\x0d\x0a}\x0d\x0aprivate void initFrame() {\x0d\x0a// 顶部\x0d\x0aJPanel titlePanel = new JPanel()\x0d\x0atitlePanel.setLayout(new FlowLayout())\x0d\x0atitlePanel.add(new JLabel("系升蔽统管理员登录"))\x0d\x0ac.add(titlePanel, "North")\x0d\x0a// 中部表单\x0d\x0aJPanel fieldPanel = new JPanel()\x0d\x0afieldPanel.setLayout(null)\x0d\x0aJLabel a1 = new JLabel("用户名:")\x0d\x0aa1.setBounds(50, 20, 50, 20)\x0d\x0aJLabel a2 = new JLabel("密 码轿笑没:")\x0d\x0aa2.setBounds(50, 60, 50, 20)\x0d\x0afieldPanel.add(a1)\x0d\x0afieldPanel.add(a2)\x0d\x0ausername.setBounds(110, 20, 120, 20)\x0d\x0apassword.setBounds(110, 60, 120, 20)\x0d\x0afieldPanel.add(username)\x0d\x0afieldPanel.add(password)\x0d\x0ac.add(fieldPanel, "Center")\x0d\x0a// 底部按钮\x0d\x0aJPanel buttonPanel = new JPanel()\x0d\x0abuttonPanel.setLayout(new FlowLayout())\x0d\x0abuttonPanel.add(ok)\x0d\x0abuttonPanel.add(cancel)\x0d\x0ac.add(buttonPanel, "South")\x0d\x0a\x0d\x0aok.addActionListener(new ActionListener() {\x0d\x0a\x0d\x0a@Override\x0d\x0apublic void actionPerformed(ActionEvent e) {\x0d\x0aSystem.out.println(username.getText().toString())\x0d\x0a}\x0d\x0a})\x0d\x0a\x0d\x0acancel.addActionListener(new ActionListener() {\x0d\x0a\x0d\x0a@Override\x0d\x0apublic void actionPerformed(ActionEvent e) {\x0d\x0aframe.setVisible(false)\x0d\x0a}\x0d\x0a})\x0d\x0a}\x0d\x0apublic static void main(String[] args) {\x0d\x0a//new Login()\x0d\x0a\x0d\x0aString ss = "abbabbbaabbbccba"\x0d\x0a\x0d\x0aSystem.out.println(ss.split("b").length)\x0d\x0a\x0d\x0a}\x0d\x0a}

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