Java多线程Socket在控制台输出的多人聊天室编程

服务器端代码

 import java.io.IOException;
 import java.net.ServerSocket;
 import java.net.Socket;
 import java.util.ArrayList;

 public class Server {

     private static ArrayList<Socket> list = new ArrayList<Socket>();
     public static void main(String[] args) throws IOException {
         ServerSocket server = new ServerSocket(9999);
         while(true){
             Socket socket = server.accept();
             list.add(socket);
             new ServerThread(socket,list).start();;
         }

     }

 }

客户端代码

 import java.io.IOException;
 import java.net.Socket;
 import java.net.UnknownHostException;

 public class Client {

     public static void main(String[] args) throws UnknownHostException, IOException {
         Socket socket = new Socket("127.0.0.1",9999);
         new ThreadWriter(socket).start();
         new ThreadReader(socket).start();
     }

 }

服务器处理socket的多线程

 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.net.Socket;
 import java.util.ArrayList;

 public class ServerThread extends Thread {

     Socket socket;
     ArrayList<Socket> list;
     InputStream is;
     OutputStream os;
     public ServerThread(Socket socket, ArrayList<Socket> list) {
         this.socket = socket;
         this.list = list;
     }

     @Override
     public void run() {
         try {
             while(true){
                 is = socket.getInputStream();
                 byte[] b = new byte[1024];
                 int len = is.read(b);
                 String str = new String(b,0,len);
                 System.out.println(str);
                 for(Socket socket:list){
                     os = socket.getOutputStream();
                     os.write(str.getBytes());
                 }
             }

         } catch (IOException e) {
             e.printStackTrace();
         }
     }

 }

读取客户端输入流多线程代码

 import java.io.IOException;
 import java.io.InputStream;
 import java.net.Socket;

 public class ThreadReader extends Thread {

     Socket socket;
     public ThreadReader(Socket socket) {
         this.socket = socket;
     }

     @Override
     public void run() {
         try {
             while(true){

                 InputStream is = socket.getInputStream();
                 byte[] b = new byte[1024];
                 int len = is.read(b);
                 String str = new String(b,0,len);
                 System.out.println(str);
             }
         } catch (IOException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
     }

 }

客户端发送数据多线程代码

 import java.io.IOException;
 import java.io.OutputStream;
 import java.net.Socket;
 import java.util.Scanner;

 public class ThreadWriter extends Thread {

     Socket socket;
     public ThreadWriter(Socket socket) {
         this.socket = socket;
     }

     @Override
     public void run() {
         try {
             Scanner sc = new Scanner(System.in);
             while(true){
                 String str = sc.next();
                 OutputStream os = socket.getOutputStream();
                 os.write(str.getBytes());
             }
         } catch (IOException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
     }

 }