java实现简单QQ登录界面

package com.ts.x.swing; 
 
import java.awt.Color; 
import java.awt.Container; 
import java.awt.Cursor; 
import java.awt.Font; 
import java.awt.Image; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
 
import javax.swing.ImageIcon; 
import javax.swing.JButton; 
import javax.swing.JCheckBox; 
import javax.swing.JComboBox; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JOptionPane; 
import javax.swing.JPasswordField; 
import javax.swing.JRootPane; 
import javax.swing.JTextField; 
 
public class QQ extends JFrame{ 
 
 private static final long serialVersionUID = -6788045638380819221L; 
 //用户名 
 private JTextField ulName; 
 //密码 
 private JPasswordField ulPasswd; 
 //小容器 
 private JLabel j1; 
 private JLabel j2; 
 private JLabel j3; 
 private JLabel j4; 
 //小按钮 
 private JButton b1; 
 private JButton b2; 
 private JButton b3; 
 //复选框 
 private JCheckBox c1; 
 private JCheckBox c2; 
 //列表框 
 private JComboBox<String> cb1; 
 /** 
 * 初始化QQ登录页面 
 * */ 
 public QQ(){ 
 //设置登录窗口标题 
 this.setTitle("QQ登录"); 
 //去掉窗口的装饰(边框) 
// this.setUndecorated(true); 
 //采用指定的窗口装饰风格 
 this.getRootPane().setWindowDecorationStyle(JRootPane.NONE); 
 //窗体组件初始化 
 init(); 
 this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
 //设置布局为绝对定位 
 this.setLayout(null); 
 this.setBounds(0, 0, 355, 265); 
 //设置窗体的图标 
 Image img0 = new ImageIcon("D:/logo.png").getImage(); 
 this.setIconImage(img0); 
 //窗体大小不能改变 
 this.setResizable(false); 
 //居中显示 
 this.setLocationRelativeTo(null); 
 //窗体显示 
 this.setVisible(true); 
 } 
 /** 
 * 窗体组件初始化 
 * */ 
 public void init(){ 
 //创建一个容器,其中的图片大小和setBounds第三、四个参数要基本一致(需要自己计算裁剪) 
 Container container = this.getContentPane(); 
 j1 = new JLabel(); 
 //设置背景色 
 Image img1 = new ImageIcon("D:/bgimg.png").getImage(); 
 j1.setIcon(new ImageIcon(img1)); 
 j1.setBounds(0, 0, 355, 265); 
 //qq头像设定 
 j2 = new JLabel(); 
 Image img2 = new ImageIcon("D:/hdimg.png").getImage(); 
 j2.setIcon(new ImageIcon(img2)); 
 j2.setBounds(40, 95, 50, 53); 
 //用户名输入框 
 ulName = new JTextField(); 
 ulName.setBounds(100, 100, 150, 20); 
 //注册账号 
 j3 = new JLabel("注册账号"); 
 j3.setBounds(260, 100, 70, 20); 
 //密码输入框 
 ulPasswd = new JPasswordField(); 
 ulPasswd.setBounds(100, 130, 150, 20); 
 //找回密码 
 j4= new JLabel("找回密码"); 
 j4.setBounds(260, 130, 70, 20); 
 //记住密码 
 c1 = new JCheckBox("记住密码"); 
 c1.setBounds(105, 155, 80, 15); 
 //自动登陆 
 c2 = new JCheckBox("自动登陆"); 
 c2.setBounds(185, 155, 80, 15); 
 //用户登陆状态选择 
 cb1 = new JComboBox<String>(); 
 cb1.addItem("在线"); 
 cb1.addItem("隐身"); 
 cb1.addItem("离开"); 
 cb1.setBounds(40, 150, 55, 20); 
 //登陆按钮 
 b1 = new JButton("登录"); 
 //设置字体和颜色和手形指针 
 b1.setFont(new Font("宋体", Font.PLAIN, 12)); 
 b1.setForeground(Color.RED); 
 b1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)); 
 b1.setBounds(280, 200, 65, 20); 
 //给按钮添加 
 b1.addActionListener(new ActionListener() { 
  @Override 
  public void actionPerformed(ActionEvent e) { 
  String cmd = e.getActionCommand(); 
  if("登录".equals(cmd)){ 
   String username = ulName.getText(); 
   String userpassword = ulPasswd.getText(); 
   if(username.equals("tskk") && userpassword.equals("123456")){ 
   JOptionPane.showConfirmDialog(null, "登录成功"); 
   }else{ 
   JOptionPane.showConfirmDialog(null, "登录失败"); 
   } 
  } 
  } 
 }); 
 //多账号 
 b2 = new JButton("多账号"); 
 b2.setBounds(5, 200, 75, 20); 
 //设置 
 b3 = new JButton("设置"); 
 b3.setBounds(100, 200, 65, 20); 
 //所有组件用容器装载 
 j1.add(j2); 
 j1.add(j3); 
 j1.add(j4); 
 j1.add(c1); 
 j1.add(c2); 
 j1.add(cb1); 
 j1.add(b1); 
 j1.add(b2); 
 j1.add(b3); 
 container.add(j1); 
 container.add(ulName); 
 container.add(ulPasswd); 
 } 
 public static void main(String[] args) { 
 new QQ(); 
 } 
}