Question

我正在Tandem System（Unix环境）中部署我的应用程序。我正在尝试使用TCP连接到其他应用程序。我有一个IP地址和端口号。从客户端（我的应用程序），我正在编写数据，看起来它正在工作（没有得到任何异常），但在读取数据时，我得到了ReadTimeOutException。以下是我的计划，我将非常感谢您的帮助。有一个相同的应用程序返回是C ++它可以正常工作与相同的IP地址和端口号

                Socket clientSocket = new Socket();
                clientSocket.setKeepAlive(true);
                clientSocket.setReuseAddress(true);
                clientSocket.setTcpNoDelay(true);
                clientSocket.setSoTimeout(120000); 
                clientSocket.setSendBufferSize(65535);
               clientSocket.connect(new InetSocketAddress("Server IP", "Port Number"), 1000);
                OutputStream outstream = clientSocket.getOutputStream(); 
                outstream .writeInt(msgLen);
                dout.write(msg, 0, msgLen);
                dout.flush();

                DataInputStream dis = new DataInputStream(clientSocket.getInputStream());
                 int len = din.readInt();
                 data = new byte[len];
                 dis .readFully(data);

在阅读时会抛出错误。尝试建立套接字连接时超时。 java.net.SocketTimeoutException：读取超时

===========================

        Socket clientSocket = new Socket();
        clientSocket.setKeepAlive(true);
        clientSocket.setReuseAddress(true);
        clientSocket.setTcpNoDelay(true);
        clientSocket.setSoTimeout(120000); // Should wait 3 minutes before throwing time out exception - Actually throwing after 2 minutes
        clientSocket.setSendBufferSize(65535);

    InputStream in= new ObjectInputStream(socket.getInputStream());
    OutputStream out = new ObjectOutputStream(socket.getOutputStream());
    out.write(byteArray);
    out.flush();


 // Receive the same string back from the server
    int totalBytesRcvd = 0;  // Total bytes received so far
    int bytesRcvd;           // Bytes received in last read
    while (totalBytesRcvd < byteArray.length) {
      if ((bytesRcvd = in.read(byteArray, totalBytesRcvd,  
                      byteArray.length - totalBytesRcvd)) == -1)
        throw new SocketException("Connection close prematurely");
      totalBytesRcvd += bytesRcvd;
    }


    clientSocket .close();  // Close the socket and its streams

请帮助我解决这个问题，自上周以来我一直坚持这个。

谢谢!!!!

Answer 1

在尝试建立连接时，不会抛出异常＆＃39;。它在一些读取调用中抛出它，几乎可以肯定在ObjectInputStream.的构造函数中。你应该在你的问题中包含堆栈跟踪。
您必须先创建ObjectOutputStream ObjectInputStream.
12000毫秒是两分钟，而不是三分钟。
您应该在客户端使用readFully()，就像您在服务器中一样。

TCP通信+ Java Socket + ReadTimeoutException

1 个答案: