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java ServerSocket

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内容图文

ServerSocket只连一次的程序

            package
             test;

            //
            只能连一次的服务器程序

            //
            : JabberServer.java 

            //
             Very simple server that just 

            //
             echoes whatever the client sends. 
            import java.io.*; 
import java.net.*; 
 
publicclass JabberServer {   
  // Choose a port outside of the range 1-1024: publicstaticfinalint PORT = 8080; 
  publicstaticvoid main(String[] args)  
      throws IOException { 
    ServerSocket s = new ServerSocket(PORT); 
    System.out.println("Started: " + s); 
    try { 
      // Blocks until a connection occurs: 
      Socket socket = s.accept(); 
      try { 
        System.out.println( 
          "Connection accepted: "+ socket); 
        BufferedReader in =  
          new BufferedReader( 
            new InputStreamReader( 
              socket.getInputStream())); 
        // Output is automatically flushed 
        // by PrintWriter: 
        PrintWriter out =  
          new PrintWriter( 
            new BufferedWriter( 
              new OutputStreamWriter( 
                socket.getOutputStream())),true); 
        while (true) {   
          String str = in.readLine(); 
          if (str.equals("END")) break; 
          System.out.println("Echoing: " + str); 
          out.println(str); 
        } 
      // Always close the two sockets... 
      } finally { 
        System.out.println("closing..."); 
        socket.close(); 
      } 
    } finally { 
      s.close(); 
    } 
  }  
} ///:~

多服务端程序实例

            /*
             this is serversocket 
            */
            package
             socket;


            import java.io.*;
import java.net.*;

class ServerOne extends Thread{
        private Socket socket;
        private BufferedReader in;
        private PrintWriter out;
        public ServerOne(Socket s) throws IOException{
                socket = s;
                in =
                  new BufferedReader(
                        new InputStreamReader(
                                socket.getInputStream(),"UTF-8"));
                //Enbale auto-flush;
                out =
                  new PrintWriter(
                        new BufferedWriter(
                                new OutputStreamWriter(
                                        socket.getOutputStream(),"UTF-8")),true);
                start();
        }
        publicvoid run(){
        try{
                while(true){
                        String str = in.readLine();
                        if(str.equals("END")) break;
                        System.out.println("Echoing:" + socket.getInetAddress() + socket.getPort());
                        out.println(str);
                        }
           }catch(IOException e){
           }finally{
                try{
                        socket.close();
                }catch(IOException e){
                }
           }
        }
}
publicclass MultiServer{
        staticfinalint PORT = 5000;
        publicstaticvoid main(String[] args)throws IOException{
                ServerSocket s = new ServerSocket(PORT);
                System.out.println("Server Started");
                try{
                  while(true){
                        Socket socket = s.accept();
                        try{
                          new ServerOne(socket);
                        }catch(IOException e){
                         socket.close();
                        }
                   }
                }finally{
                  s.close();
                }
         }
}

 

原文：https://www.cnblogs.com/jiangfeilong/p/10504030.html

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