客户端 - 服务器套接字

我是Java的成员，所以我需要获得这项工作？我做类，进入这个我添加了主要的方法，我粘贴这个代码，但这是行不通的。在服务器类给我一些关于最后变量的错误。我什么都不懂。客户端 - 服务器套接字

客户端类

//Creating the client socket: 
    Socket socket = new Socket(); 

    //Binding to the local socket address: 
    InetAddress localIpAddress = InetAddress.getByName ("0.0.0.0"); 
    int localIpPort = 0; 
    SocketAddress localSocketAddress = new InetSocketAddress (localIpAddress, localIpPort); 
    socket.bind (localSocketAddress); 

    //Connecting to the remote socket address: 
    InetAddress remoteIpAddress = InetAddress.getByName ("localhost"); 
    int remoteIpPort = 20000; 
    SocketAddress remoteSocketAddress = new InetSocketAddress (remoteIpAddress, remoteIpPort); 
    socket.connect (remoteSocketAddress); 

    //Receiving and/or sending data through inbound and outbound streams: 
    BufferedReader reader = new BufferedReader (new InputStreamReader (socket.getInputStream())); 
    BufferedWriter writer = new BufferedWriter (new OutputStreamWriter (socket.getOutputStream())); 

    String request = "Hello"; 
    writer.write (request); 
    writer.newLine(); 
    // Do not forget to flush 
    writer.flush(); 

    // Reading the response 
    String response = reader.readLine(); 

    //Shutting-down the inbound and outbound streams: 
    socket.shutdownInput(); 
    socket.shutdownOutput(); 

    //Closing the socket: 
    socket.close(); 
    [...]

服务器类

//Creating the server socket: 
    ServerSocket socket = new ServerSocket(); 

    //Binding to the local socket address -- this is the one the clients should be connecting to: 
    InetAddress localIpAddress = InetAddress.getByName ("0.0.0.0"); 
    int localIpPort = 20000; 
    SocketAddress localSocketAddress = new InetSocketAddress (localIpAddress, localIpPort); 
    socket.bind (localSocketAddress); 

    while (true) { 

      //For each connection accepting a client socket, and: 
      Socket client = socket.accept(); 

      // Starting a new Thread for each client 
      new Thread() { 

        public void run() { 
          try { 
            //Receiving and/or sending data; 
            BufferedReader reader = new BufferedReader (new InputStreamReader (client.getInputStream())); 
            BufferedWriter writer = new BufferedWriter (new OutputStreamWriter (client.getOutputStream())); 

            // Reading the request 
            String request = reader.readLine(); 
            // Write the response 
            String response = "Welcome"; 
            writer.write(response); 
            writer.newLine(); 
            // Do not forget to flush! 
            writer.flush(); 

            client.close(); 
          } catch (Exception e) { 
            e.printStackTrace(); 
          } 
        } 
      }; 
    } 

    //Closing the server socket; 
    socket.close();

来源

2013-10-01 LXSoft

变化Socket client = socket.accept();到final Socket client = socket.accept();。

来源

2013-10-01 12:31:29 Holger

最后一个错误是socket.close（）是无法访问的代码？在服务器类 – LXSoft

当然。 'while（true）{...'形成一个无限循环。所以在循环之后加上'close'是没有意义的。 – Holger

我在while结束时移动该行并且没有更多错误 – LXSoft

您正在使用匿名内部类，并从包含范围访问变量（如客户端），它们必须声明为final。

最终的关键字意味着你将不能重新分配变量后，但我不认为这会是一个问题。

来说明：

这里...

new Thread() { 

       public void run() { 
         try {

你在飞行Thread子类，实现从Runnable接口的run方法。这是一个匿名类，因为你没有声明一个新的类，你可以在其他地方重用它 - 它是Thread的一次性子类，并且是匿名的，如果它们是最终的，你只能使用类定义之外的变量。

来源

2013-10-01 12:32:01 Aaron

客户端 - 服务器套接字

回答

相关问题