Java模拟qq软件的详细过程 Java模拟qq软件的详细过程

登陆界面的实现

登陆界面代码Login类
login的监听类 LoginListener

聊天界面运行图

Client类代码
Server代码
登陆界面代码

**之前在封装代码后出现了问题，按照最初的写法，在登陆完毕后弹出聊天界面后会卡死，原因是当时登陆界面和聊天界面都是使用的主线程，我的代码没有写其他线程，无法多线程运行，因此在弹出聊天界面时线程不够用了，就卡在了监听线程里，因为在监听线程中再有新的监听就会被卡住
在宇哥的指点下，将启动服务器和客户端的部分改为线程，就解决了此问题。改善后的代码简练和清晰了很多，更方便大家参考，代码如下：
**

登陆界面的实现登陆界面主要使用了JFrame，以及相关的一些组件，并且在界面中加上监听
登陆界面效果图

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登陆界面代码Login类

package com.lding.net; import javax.swing.*; import java.awt.*; /** * @program: Chat * @description: * @author: 王丁 * @date: 2021-09-26 08:58 **/public class Login{JTextField jTextField; public static void main(String[] args){Login login = new Login (); login.showUI ("kk"); }public void showUI(String str){JFrame jf = new JFrame (); jf.setTitle ("??DDqq登陆界面??"); jf.setSize (500, 400); jf.setDefaultCloseOperation (3); jf.setLocationRelativeTo (null); jf.setResizable (false); FlowLayout fl = new FlowLayout (FlowLayout.CENTER, 5, 5); jf.setLayout (fl); Dimension dim1 = new Dimension (500, 200); //图片大小Dimension dim2 = new Dimension (100, 50); //标签大小Dimension dim3 = new Dimension (300, 30); //输入框大小Dimension dim4 = new Dimension (100, 40); //按钮大小ImageIcon icon = new ImageIcon ("source/Login1.jpg"); JLabel labimg = new JLabel (icon); labimg.setPreferredSize (dim1); jf.add (labimg); JLabel labuser = new JLabel (); labuser.setText ("user："); labuser.setPreferredSize (dim2); jf.add (labuser); JTextField textuser = new JTextField (); textuser.setPreferredSize (dim3); jf.add (textuser); JLabel labpassword = new JLabel (); labpassword.setText ("password："); labpassword.setPreferredSize (dim2); jf.add (labpassword); JPasswordField textPassword = new JPasswordField (); textPassword.setPreferredSize (dim3); jf.add (textPassword); JButton button = new JButton (); button.setBorder (BorderFactory.createRaisedBevelBorder ()); button.setText ("login"); button.setPreferredSize (dim4); jf.add (button); jf.setVisible (true); LoginListener ll = new LoginListener(textuser,textPassword, jf); button.addActionListener (ll); this.jTextField=ll.jTextField; }}

【Java模拟qq软件的详细过程】
login的监听类 LoginListener

package com.lding.net; import javax.swing.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; /** * @program: Chat * @description: * @author: 王丁 * @date: 2021-09-26 08:59 **/public class LoginListener implements ActionListener {JTextField jTextField; JPasswordField jPasswordField; JFrame jf ; LoginListener( JTextField jTextField,JPasswordField jPasswordField,JFrame jf){this.jf=jf; this.jTextField = jTextField; this.jPasswordField = jPasswordField; }@Overridepublic void actionPerformed(ActionEvent e){if(jTextField.getText().equals("Alice")&&String.valueOf(jPasswordField.getPassword()).equals("1234")){System.out.println ("服务端登录！！"); String name =jTextField.getText(); new Server(name).start(); jf.dispose(); }else if(jTextField.getText().equals("Lding")&&String.valueOf(jPasswordField.getPassword()).equals("1234")){String name =jTextField.getText(); System.out.println ("客户端登录！！"); new Client(name).start(); jf.dispose(); }}}

在登陆完毕后，需要跳转到聊天界面，这里采用的方法是通过一个flag标志来判断是否登陆完毕，当登陆完毕后，会创建新的聊天界面，并且登陆页面会被关闭
依然是双端通信，假定一端为客户端，一端为服务端，其实两端都可为用户。

聊天界面运行图
先登陆Alice的账号密码为123456

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登陆成功后显示ok，并等待连接

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再登陆冷丁的账号，密码为123456

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当lding账号登陆成功后完成连接，这时候会弹出两个新的JFram窗口，为聊天见面

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随后可以发送消息，消息可以实时显示时间，并显示用户名
一方发送的消息会在另一方的窗口上实时显示出来

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Client类代码

package com.lding.net; import com.lding.ui.MsgUI; import javax.swing.*; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.Socket; import java.text.SimpleDateFormat; import java.util.Date; /** * @program: Chat * @description: 客户端 * @author: 王丁 * @date: 2021-09-26 08:58 **/public class Client extendsThread{String name; public Client(String name) {this.name=name; }public static void main(String[] args) {String port="客户端"; Login login=new Login(); login.showUI(port); }@Overridepublic void run(){try {startClient(); } catch (IOException e) {e.printStackTrace (); }}void startClient() throws IOException{Socket socket=new Socket("127.0.0.1",8888); //输入输出流对象InputStream inputStream=socket.getInputStream(); OutputStream outputStream=socket.getOutputStream(); MsgUI msgUI=new MsgUI(outputStream,name); JTextPane showmsgpane=msgUI.initUI("客户端"); outputStream.flush(); int count=1; while(true){int msglenth=inputStream.read(); System.out.println("消息长度："+msglenth); byte[] msgbytes=new byte[msglenth]; //将接下来的数据读入字节数组中inputStream.read(msgbytes); count++; if(count%2==0){SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); //设置日期格式String date = df.format(new Date()); // new Date()为获取当前系统时间，也可使用当前时间戳String getmsg=new String(msgbytes); String msg=showmsgpane.getText(); showmsgpane.setText(msg+date+"["+getmsg+"]"+"说:"+"\n"); }else{String getmsg=new String(msgbytes); String msg=showmsgpane.getText(); showmsgpane.setText(msg+getmsg+"\n"); }}}}

Server代码

package com.lding.net; import com.lding.ui.MsgUI; import javax.swing.*; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.ServerSocket; import java.net.Socket; import java.text.SimpleDateFormat; import java.util.Date; /** * @program: Chat * @description: * @author: 王丁 * @date: 2021-09-26 08:58 **/public class Server extendsThread{JTextField jTextField; String name; public Server(String name){this.name=name; }public static void main(String[] args) {String port="服务端"; Login login=new Login(); login.showUI(port); }@Overridepublic void run(){try {startServer(); } catch (IOException e) {e.printStackTrace (); }}void startServer() throws IOException{ServerSocket serverSocket=new ServerSocket(8888); System.out.println("等待连接！！"); Socket clientsocket=serverSocket.accept(); //监听连接System.out.println("连接成功！！"); InputStream inputStream=clientsocket.getInputStream(); OutputStream outputStream=clientsocket.getOutputStream(); MsgUI msgUI=new MsgUI(outputStream,name); JTextPane showmsgpane=msgUI.initUI("服务端"); //outputStream.flush(); int count=1; while(true){int msglenth=inputStream.read(); System.out.println("消息长度是："+msglenth); byte[] msgbytes=new byte[msglenth]; //将接下来的数据读入字节数组中inputStream.read(msgbytes); count++; if(count%2==0){SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); //设置日期格式String date = df.format(new Date()); // new Date()为获取当前系统时间，也可使用当前时间戳String getmsg=new String(msgbytes); String msg=showmsgpane.getText(); showmsgpane.setText(msg+date+"["+getmsg+"]"+"说:"+"\n"); }else{String getmsg=new String(msgbytes); String msg=showmsgpane.getText(); showmsgpane.setText(msg+getmsg+"\n"); }}}}

登陆界面代码

MsgUI

package com.lding.ui; import javax.swing.*; import java.awt.*; import java.io.OutputStream; /** * @program: Chat * @description: * @author: 王丁 * @date: 2021-09-26 08:59 **/public class MsgUI extends JFrame {OutputStream outputStream; String name; public MsgUI(OutputStream outputStream,String name){this.outputStream=outputStream; this.name=name; }public JTextPane initUI(String title){setTitle(title); setSize(800,800); setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); setLocationRelativeTo(null); setLayout(new FlowLayout()); //接收显示框JTextPane jtp=new JTextPane(); jtp.setPreferredSize(new Dimension(750,400)); JScrollPane jsp=new JScrollPane(jtp); jtp.getText(); Dimension dim=new Dimension(750,400); //按钮大小//发送框JTextPane jtp1=new JTextPane(); jtp1.setPreferredSize(new Dimension(750,200)); JScrollPane jsp1=new JScrollPane(jtp1); JButton btn=new JButton("发送"); add(jsp); add(jsp1); add(btn); setVisible(true); MsgListener msgl=new MsgListener(jtp1,this.outputStream,name); btn.addActionListener(msgl); return jtp; }}

MsgUIListener

package com.lding.ui; import javax.swing.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; import java.io.OutputStream; /** * @program: Chat * @description: * @author: 王丁 * @date: 2021-09-26 09:00 **/public class MsgListener implements ActionListener {JTextPane jtp; OutputStream outputStream; String name; publicMsgListener(JTextPane jtp,OutputStream outputStream,String name){this.jtp=jtp; this.outputStream=outputStream; this.name=name; }@Overridepublic void actionPerformed(ActionEvent e) {byte[] names=this.name.getBytes(); try {outputStream.write(names.length); outputStream.write(names); outputStream.flush(); } catch (IOException ex) {ex.printStackTrace(); }String msg=jtp.getText(); byte[] msgs=msg.getBytes(); try {outputStream.write(msgs.length); outputStream.write(msgs); outputStream.flush(); } catch (IOException ex) {ex.printStackTrace(); }jtp.setText(null); }}

之后会丰富更多功能敬请期待！感谢您的观看！！！
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