「javaqq实例」JAVA版
本篇文章给大家谈谈javaqq实例，以及JAVA版对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。
本文目录一览：
用java怎么实现QQ登录界面？
用java做QQ登录界面的写法如下：
package ch10;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
1、//定义该类继承自JFrame，实现ActionListener接口
public class LoginTest extends JFrame implements ActionListener
{
2、//创建JPanel对象
private JPanel jp=new JPanel();
3、//创建3个标并加入数组
JLabel name = new JLabel("请输入用户名");
JLabel password = new JLabel("请输入密码");
JLabel show = new JLabel("");
private JLabel[] jl={name,password,show};
4、//创建登陆和重置按扭并加入数组
JButton login = new JButton("登陆");
JButton reset = new JButton("重置");
private JButton[] jb={login,reset};
5、//创建文本框以及密码框
private JTextField jName=new JTextField();
private JPasswordField jPassword =new JPasswordField();
public LoginTest()
{
6、//设置布局管理器为空布局，这里自己摆放按钮、标签和文本框
jp.setLayout(null);
for(int i=0;i2;i++)
{
7、//设置标签和按扭的位置与大小
jl[i].setBounds(30,20+40*i,180,20);
jb[i].setBounds(30+110*i,100,80,20);
8、//添加标签和按扭到JPanel容器中
jp.add(jl[i]);
jp.add(jb[i]);
//为2个按钮注册动作事件监听器
jb[i].addActionListener(this);
}
9、//设置文本框的位置和大小，注意满足美观并足够用户名的长度
jName.setBounds(130,15,100,20);
10、//添加文本框到JPanel容器中
jp.add(jName);
11、//为文本框注册动作事件监听器
jName.addActionListener(this);
12、//设置密码框的位置和大小，注意满足美观和足够密码的长度
jPassword.setBounds(130,60,100,20);
13、//添加密码框到JPanel容器中
jp.add(jPassword);
14、//设置密码框中的回显字符，这里设置美元符号
jPassword.setEchoChar('$');
15、//为密码框注册动作事件监听器
jPassword.addActionListener(this);
16、//设置用于显示登陆状态的标签大小位置，并将其添加进JPanel容器
jl[2].setBounds(10,180,270,20);
jp.add(jl[2]);
17、//添加JPanel容器到窗体中
this.add(jp);
18、//设置窗体的标题、位置、大小、可见性及关闭动作
this.setTitle("登陆窗口");
this.setBounds(200,200,270,250);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
19、//实现动作监听器接口中的方法actionPerformed
public void actionPerformed(ActionEvent e)
{
20、//如果事件源为文本框
if(e.getSource()==jName)
{
21、//切换输入焦点到密码框
jPassword.requestFocus();
}
22、//如果事件源为重置按扭
else if(e.getSource()==jb[1])
{
23、//清空姓名文本框、密码框和show标签中的所有信息
jl[2].setText("");
jName.setText("");
jPassword.setText("");
24、//让输入焦点回到文本框
jName.requestFocus();
}
25、//如果事件源为登陆按钮，则判断登录名和密码是否正确
else
{
26、//判断用户名和密码是否匹配
if(jName.getText().equals("lixiangguo")
String.valueOf(jPassword.getPassword()).equals("19801001"))
{
27、jl[2].setText("登陆成功，欢迎您的到来！");
}
else
{
28、jl[2].setText("对不起，您的用户名或密码错误！");
}
}
}
public static void main(String[] args)
{
29、//创建LoginTest窗体对象
new LoginTest();
}
}
怎么用java打开qq
java实现简单QQ登陆界面：
1.生成界面的java代码
package QQ2014;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class QQ2014 {
//创建登陆界面类
public void showLoginFrame(){
//创建船体对象
JFrame loginFrame=new JFrame();
//设置大小，位置，标题
loginFrame.setSize(300,200);
loginFrame.setTitle("QQ2014");
loginFrame.setLocationRelativeTo(null);
//创建流式分布对象
FlowLayout layout=new FlowLayout();
loginFrame.setLayout(layout);
//创建账户名，密码和输入框
JLabel user_name=new JLabel("账号：");
JLabel user_password=new JLabel("密码：");
JTextField field_name=new JTextField(20);
JPasswordField field_password=new JPasswordField(20);
//创建登陆，重置按钮
JButton button_reset=new JButton("重置");
JButton button_login=new JButton("登陆");
//设置窗体可见
loginFrame.setVisible(true);
//创建事件监听对象
ActionListener action_listener1=new ActionListener(){
public void actionPerformed(ActionEvent e){
String name=field_name.getText();
String password=field_password.getText();
if("zhaoxin".equals(name)"123".equals(password))
{
showIndexFrame();
loginFrame.setDefaultCloseOperation(3);
loginFrame.setVisible(false);
}
else{
System.out.println("密码错误，重新输入!");
}
}
};
ActionListener action_listener2=new ActionListener(){
public void actionPerformed(ActionEvent e){
field_name.setText("");
field_password.setText("");
}
};
//将文本输入框，按钮，事件监听对象添加
loginFrame.add(user_name);
loginFrame.add(field_name);
loginFrame.add(user_password);
loginFrame.add(field_password);
loginFrame.add(button_reset);
loginFrame.add(button_login);
button_reset.addActionListener(action_listener2);
button_login.addActionListener(action_listener1);
}
public void showIndexFrame(){
//创建窗体对象
JFrame indexFrame=new JFrame();
indexFrame.setSize(200,500);
indexFrame.setTitle("QQ好友列表");
indexFrame.setLocationRelativeTo(null);
//设置流式分布对象
FlowLayout layout=new FlowLayout(FlowLayout.CENTER,100,10);
indexFrame.setLayout(layout);
//创建好友按钮
for(int i=0;i10;i++)
{
JButton button_friend=new JButton("friend"+i);
//创建动作事件监听对象
ActionListener action_listener=new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
showChatFrame();
indexFrame.setVisible(false);
indexFrame.setDefaultCloseOperation(3);
}
};
button_friend.addActionListener(action_listener);
indexFrame.add(button_friend);
}
//设置窗体可见
indexFrame.setVisible(true);
}
public void showChatFrame(){
//创建窗体，大小，位置，标题
JFrame chatFrame=new JFrame();
chatFrame.setSize(400,400);
chatFrame.setTitle("正在聊天中...");
chatFrame.setLocationRelativeTo(null);
//创建聊天记录，输入域
JTextArea area_input=new JTextArea(10,30);
JTextArea area_record=new JTextArea(5,30);
//创建流式分布对象
FlowLayout layout=new FlowLayout(FlowLayout.CENTER,0,10);
chatFrame.setLayout(layout);
//创建发送，关闭按扭
JButton button_send=new JButton("发送");
JButton button_close=new JButton("关闭");
//创建动作事件监听对象
ActionListener action_listener1=new ActionListener()
{
public void actionPerformed(ActionEvent e){
area_record.setText(area_record.getText()+"\n"+area_input.getText());
area_input.setText("");
}
};
ActionListener action_listener2=new ActionListener()
{
public void actionPerformed(ActionEvent e){
chatFrame.setVisible(false);
chatFrame.setDefaultCloseOperation(3);
}
};
//设置窗体可见
chatFrame.setVisible(true);
//添加按钮，事件监听对象
chatFrame.add(area_record);
chatFrame.add(area_input);
chatFrame.add(button_send);
chatFrame.add(button_close);
button_send.addActionListener(action_listener1);
button_close.addActionListener(action_listener2);
}
}
复制代码
2.java main方法调用
package QQ2014;
public class Test {
public static void main(String[] args){
QQ2014 qq=new QQ2014();
qq.showLoginFrame();
}
}
用JAVA怎么写QQ
用java是可以写出qq的，只不过用java开发c/s的软件不是java特长的，你要是真的想写，就写着练练手吧，最起码可以巩固java se上的知识。
具体怎么写，给你个大概的思路吧，因为我没办法在这个有限的输入框内把所有的代码写完。
【1】先写出qq的简单界面
【2】给每个按钮添加监听
【3】按钮事件（方法）定义
【4】连接网络（socket）
【5】测试
【5】其他功能添加
【6】测试
Java做一个多线程类似于QQ的聊天程序。
//时间关系,粗略的做了一下,一个模拟UDP协议的测试,图标,IP,以及端口都可以设成
//发送者端的电脑参数!
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.IOException;
import java.io.Serializable;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class Day03_A extends JFrame implements Serializable {
private static final long serialVersionUID = 57L;
private JTextArea txtRece, txtSend;// 接受与发送文本域!
private JPanel jp1, jp2;// 面板!
private JScrollPane jsp;
private JLabel jab;// 标签
private JButton jb;// 按钮
private JMenuBar jmb;// 窗体状态栏
private JMenuItem a=null,b=null;
private DatagramSocket dsend = null, drece;
private DatagramPacket dp1, dp2;
private byte[] by1, by2;
private String[][][] menArr= {{{"语言"},{"中文","英文"}}, {{"字体"},{"隶书","彩云",}},{{"辅助"},{"放大","缩小"}}, {{"功能"},{"计算","闹钟"}}};
Day03_A() {
by2 = new byte[1024];
this.setTitle("山寨QQ测试");// 窗体标题
this.setBounds(300, 300, 400, 500);// 位置及大小!
this.setResizable(false);
this.setIconImage(new ImageIcon("E:/Java_Worker/Day_41学习_Gui/src/com/djw/swing01/qq.png").getImage());
this.setLayout(new GridLayout(2, 1));// 网格模式2行1列
init();
this.setJMenuBar(jmb);
this.setVisible(true);
}
private void init() {
jmb = new JMenuBar();
for(int i=0;imenArr.length;i++) {
for(int j=0;jmenArr[i].length;j++) {
for(int x=0;xmenArr[i][j].length;x++) {
if(j==0) {
a=new JMenu(menArr[i][j][x]);
}else {
b=new JMenuItem(menArr[i][j][x]);
a.add(b);
}
}
jmb.add(a);
}
}
jp1 = new JPanel();
jp1.setLayout(new BorderLayout());
txtRece = new JTextArea();
jsp = new JScrollPane(txtRece);
jsp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
this.add(jsp);
jp2 = new JPanel();// 面板
jp2.setBackground(new Color(107, 197, 127));
jp2.setLayout(new BorderLayout());
txtSend = new JTextArea();
jab = new JLabel();
jab.setText("[ALT+S]/[回车+CTRL]或者[点击发送按钮]:发送信息");
jab.setHorizontalAlignment(JLabel.CENTER);// 标签文本居中
jb = new JButton("发送");
jp2.add(jab, BorderLayout.NORTH);// 指定到面板北面
jp2.add(txtSend, BorderLayout.CENTER);// 文本放中间
jp2.add(jb, BorderLayout.SOUTH);
this.add(jp2);
myeve();
}
private void myeve() {
this.setDefaultCloseOperation(EXIT_ON_CLOSE);// 窗体可关闭
try {
dsend = new DatagramSocket();// 发送端套接字
drece = new DatagramSocket(10008);
} catch (SocketException e) {
e.printStackTrace();
}
re();// 启动无限循环侦听!
txtSend.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent k) {
if (k.isControlDown() k.getKeyCode() == KeyEvent.VK_ENTER) {
se();
}
if (k.isAltDown() k.getKeyCode() == KeyEvent.VK_S) {
se();
}
}
});
jb.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent arg0) {
se();
txtSend.requestFocus();
}
});
}
private void se() {
try {
by1 = txtSend.getText().getBytes();
dp1 = new DatagramPacket(by1, by1.length, InetAddress.getByName("192.168.2.4"), 10008);
dsend.send(dp1);// 推送数据
txtSend.setText(null);
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private void re() {
new Thread() {
public void run() {
while (true) {
try {
String time = new SimpleDateFormat("MM-dd/HH:mm").format(new Date());
dp2 = new DatagramPacket(by2, by2.length);
drece.receive(dp2);
String ip = dp2.getAddress().getHostAddress();
txtRece.append("用户IP:" + ip + " 时间:");
txtRece.append(time + ": " + System.getProperty("line.separator"));
txtRece.append(new String(by2, 0, dp2.getLength()) + System.getProperty("line.separator"));
txtRece.setCaretPosition(txtRece.getText().length());
} catch (IOException e) {
e.printStackTrace();
}
}
}
}.start();
}
public static void main(String[] args) {
new Day03_A();
}
}
用Java编写类似QQ对话框程序
给你个Socket/ServerSocket写的小例子,看看能不能帮到你哦:
先运行ServerGUI,启动服务器端,再运行ClientGUI,双方就可以发送字符串了...
ServerGUI类:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.IOException;
@SuppressWarnings("serial")
public class ServerGUI extends JFrame {
private JTextArea jta, jtaInput;
private JPanel jtaAreaPane;
private JPanel j;
private JButton buttonSubmit, buttonExit;
private String stringGet = null;
private OurServer os = null;
public ServerGUI(String s) {
super(s);
jtaAreaPane = new JPanel();
jtaAreaPane.setLayout(new GridLayout(2, 1));
jta = new JTextArea(7, 35);
jta.setLineWrap(true);
jta.setBackground(new Color(169, 255, 128));
JScrollPane jsp = new JScrollPane(jta);
jtaInput = new JTextArea(7, 35);
jtaInput.setLineWrap(true);
jtaInput.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == 10) {
String s = jtaInput.getText();
jtaInput.setText(null); // 输入框重新设为空
jta.append("\n" + "你发送了:" + s.trim());
stringGet = s;
if (stringGet != null) {
System.out.println("stringGet:" + stringGet);
try {
os.getOsw().write(stringGet + "\n");
os.getOsw().flush();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
});
jtaInput.setBackground(new Color(133, 168, 250));
JScrollPane jspIn = new JScrollPane(jtaInput);
jtaAreaPane.add(jsp);
jtaAreaPane.add(jspIn);
j = new JPanel();
buttonSubmit = new JButton("提交");
buttonSubmit.addActionListener(new SetButtonSubmit());
buttonExit = new JButton("关闭");
buttonExit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
j.add(buttonSubmit);
j.add(buttonExit);
setLayout(new BorderLayout());
add(jtaAreaPane, BorderLayout.CENTER);
add(j, BorderLayout.SOUTH);
setSize(new Dimension(400, 500));
setLocation(500, 300);
pack();
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(false);
setVisible(true);
new Thread(new ServerOurRead()).start();
os = new OurServer();
}
public String GetString() {
return stringGet;
}
public void setStringGet(String s) {
this.stringGet = s;
}
class SetButtonSubmit implements ActionListener {
@SuppressWarnings("static-access")
public void actionPerformed(ActionEvent e) {
String s = jtaInput.getText();
jtaInput.setText(null);
jta.append("\n" + "你发送了:" + s.trim());// jta.setText("你发送了:"+oc.s);
stringGet = s;
if (stringGet != null) {
System.out.println("stringGet:" + stringGet);
try {
os.getOsw().write(stringGet + "\n");
os.getOsw().flush();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
// 接收来自客户端的线程
class ServerOurRead implements Runnable {
public void run() {
while (true) {
try {
jta.append("\n来自客户端:" + os.getBr().readLine());
} catch (Exception e1) {
e1.printStackTrace();
}
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
public static void main(String args[]) {
new ServerGUI("服务器对话框");
}
}
OurServer类:
import java.util.*;
import java.io.*;
import java.net.*;
public class OurServer {
private ServerSocket serverSocket = null;
private OutputStream os = null;
private InputStream is = null;
private OutputStreamWriter osw = null;
private InputStreamReader isr = null;
private BufferedReader br = null;
private ArrayListSocket socketList = null;
private Scanner console = new Scanner(System.in);
public OurServer() {
try {
serverSocket = new ServerSocket(22222);
System.out.println("serverSocket is waiting...");
Socket soc = serverSocket.accept();
os = soc.getOutputStream();
is = soc.getInputStream();
osw = new OutputStreamWriter(os);
isr = new InputStreamReader(is);
br = new BufferedReader(isr);
} catch (IOException e) {
e.printStackTrace();
}
}
// 从客户端读信息的线程
public static void main(String args[]) {
}
public BufferedReader getBr() {
return br;
}
public void setBr(BufferedReader br) {
this.br = br;
}
public OutputStreamWriter getOsw() {
return osw;
}
public void setOsw(OutputStreamWriter osw) {
this.osw = osw;
}
}
ClientGUI类:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.IOException;
@SuppressWarnings("serial")
public class ClientGUI extends JFrame {
private JTextArea jta, jtaInput;
private JPanel jtaAreaPanel;
private JPanel j;
private JButton buttonSubmit, buttonExit;
private String stringGet = null;
private OurClient oc = null;
public ClientGUI(String s) {
super(s);
jtaAreaPanel = new JPanel();
jtaAreaPanel.setLayout(new GridLayout(2, 1));
jta = new JTextArea(7, 35);
jta.setLineWrap(true);
jta.setBackground(new Color(169, 255, 128));
JScrollPane jsp = new JScrollPane(jta);
jtaInput = new JTextArea(7, 35);
jtaInput.setLineWrap(true);
jtaInput.setBackground(new Color(133, 168, 250));
jtaInput.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == 10) {
String s = jtaInput.getText();
jtaInput.setText(null); // 输入框重新设为空
jta.append("\n" + "你发送了:" + s.trim());
stringGet = s;
if (stringGet != null) {
System.out.println("stringGet:" + stringGet);
try {
oc.getOsw().write(stringGet + "\n");
oc.getOsw().flush();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
});
JScrollPane jspIn = new JScrollPane(jtaInput);
jtaAreaPanel.add(jsp);
jtaAreaPanel.add(jspIn);
j = new JPanel();
buttonSubmit = new JButton("提交");
buttonSubmit.addActionListener(new SetButtonSubmit());
buttonExit = new JButton("关闭");
buttonExit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
j.add(buttonSubmit);
j.add(buttonExit);
setLayout(new BorderLayout());
add(jtaAreaPanel, BorderLayout.CENTER);
add(j, BorderLayout.SOUTH);
setSize(new Dimension(400, 500));
setLocation(500, 300);
pack();
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(false);
setVisible(true);
// 启动读取服务端信息线程
new Thread(new ServerOurRead()).start();
oc = new OurClient();
}
public String GetString() {
return stringGet;
}
public void setStringGet(String s) {
this.stringGet = s;
}
class SetButtonSubmit implements ActionListener {
@SuppressWarnings("static-access")
public void actionPerformed(ActionEvent e) {
String s = jtaInput.getText();
jtaInput.setText(null); // 输入框重新设为空
jta.append("\n" + "你发送了:" + s.trim());
stringGet = s;
if (stringGet != null) {
System.out.println("stringGet:" + stringGet);
try {
oc.getOsw().write(stringGet + "\n");
oc.getOsw().flush();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
// 接收来自客户端的线程
class ServerOurRead implements Runnable {
public void run() {
while (true) {
try {
// oc.getBr().readLine()此方法一直在读,直到流中有数据
jta.append("\n来自客户端:" + oc.getBr().readLine());// readLine()
} catch (Exception e1) {
}
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
public static void main(String args[]) {
new ClientGUI("对话框");
}
}
OurClient 类:
import java.io.*;
import java.net.*;
import java.util.*;
public class OurClient {
private Socket socket = null;
private OutputStream os = null;
private InputStream is = null;
private OutputStreamWriter osw = null;
private InputStreamReader isr = null;
private BufferedReader br = null;
private Scanner console = null;
private static String s = null;
private static String In = null;
public OurClient() {
console = new Scanner(System.in);
try {
socket = new Socket("127.0.0.1", 22222);
os = socket.getOutputStream();
is = socket.getInputStream();
osw = new OutputStreamWriter(os);
isr = new InputStreamReader(is);
br = new BufferedReader(isr);
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
// 从服务端读信息的线程
public BufferedReader getBr() {
return br;
}
public void setBr(BufferedReader br) {
this.br = br;
}
public OutputStreamWriter getOsw() {
return osw;
}
public void setOsw(OutputStreamWriter osw) {
this.osw = osw;
}
public static void main(String args[]) {
}
}
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发布于：2022-12-02，除非注明，否则均为原创文章，转载请注明出处。