socket学习（多线程聊天示例）

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ThreadServer.java

import java.io.*;  import java.net.*;  /**  *   * @author heqichang  * 服务端接收信息线程  * */  public class ThreadServer extends Thread{      Socket serverSocket;      public void run()      {          try {              BufferedReader br=new BufferedReader(new InputStreamReader(serverSocket.getInputStream()));              String read=new String();              //接受客户端的姓名信息              String name=br.readLine();              //循环接受客户端信息              while(true)              {                  read=br.readLine();                  System.out.println(name+"说："+read);                  if(read.equals("bye"))                  {                      break;                  }              }              br.close();              serverSocket.close();          } catch (IOException e) {              // TODO Auto-generated catch block              e.printStackTrace();          }      }      public ThreadServer(Socket server)      {          serverSocket=server;      }  }

ThreadSocketClient.java

import java.io.*;  import java.net.*;  /**  *   *  * 客户端  * */  public class ThreadSocketClient extends Thread{      static Socket socket;      public void run()      {          try {              BufferedReader br2=new BufferedReader(new InputStreamReader(socket.getInputStream()));              String read=new String();              //接受来自服务端的姓名信息              String name=br2.readLine();              //接受来自服务端的信息              while(true)              {                  read=br2.readLine();                  System.out.println(name+"说："+read);              }          } catch (IOException e) {              e.printStackTrace();          }      }      public static void main(String[] args) throws IOException      {          socket=new Socket("127.0.0.1",9999);          BufferedReader inputName=new BufferedReader(new InputStreamReader(System.in));          System.out.print("已连接上服务端，请输入你的姓名：");          String name=inputName.readLine();          //启动一个线程进行接收服务端信息          ThreadSocketClient thread=new ThreadSocketClient();          thread.start();          BufferedReader br=new BufferedReader(new InputStreamReader(System.in));          PrintWriter pw=new PrintWriter(socket.getOutputStream());          //发送给服务端客户端的姓名信息          pw.println(name);          String info=new String();          //发送消息给服务端          while(!info.equals("bye"))          {              info=br.readLine();              pw.println(info);              pw.flush();          }          pw.close();          socket.close();      }  }

ThreadSocketServer.java

import java.io.*;  import java.net.*;  import javax.swing.JOptionPane;/**  *   * @author bruceli  * 服务端  * */  public class ThreadSocketServer extends Thread {      Socket server;      //保存服务端的姓名      static String name = new String();      public void run() {          try {              //启动一个线程来接收客户端信息              ThreadServer thread = new ThreadServer(server);              thread.start();              BufferedReader br = new BufferedReader(new InputStreamReader(                      System.in));              PrintWriter pw = new PrintWriter(server.getOutputStream());              //第一次发送自己的姓名给客户端              pw.println(name);              //循环发送信息给客户端              while (true) {                  String s = br.readLine();                  pw.println(s);                  pw.flush();              }          } catch (IOException e) {              e.printStackTrace();          }      }      public ThreadSocketServer(Socket s) {          this.server = s;      }      public static void main(String[] args) throws IOException {          //绑定服务端在9999端口          ServerSocket server = new ServerSocket(9999);          Socket socket;          BufferedReader br = new BufferedReader(new InputStreamReader(System.in));          System.out.print("请输入您的姓名：");          name = br.readLine();          while (true) {              //监听客户端程序              socket = server.accept();              //一个客户端连接后启动一个线程进行处理              ThreadSocketServer thread = new ThreadSocketServer(socket);              thread.start();                 JOptionPane.showMessageDialog(null,"有客户端连接到了9999端口");         }      }  }

执行效果：这里写图片描述

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