套接字不读取数据

Question

I am trying a simple Java program to send and receive data... Server is sending the data and Client receives that... But this generates Socket Exception : Connection Reset

This is my Server side code to sent Integer value...

try {
   ServerSocket server = new ServerSocket(9089);

   Socket socket = server.accept();

   OutputStream out = socket.getOutputStream();
   out.write(12);
   out.flush();
   System.out.println("Data Sent....");
   Thread.sleep(5000);
} catch(Exception  e) {
   System.out.println("Server Error : " + e.toString());
}

This is my Client side code to receive that Int value...

try {
   Socket client = new Socket(InetAddress.getLocalHost(), 9089);
   System.out.println("Connected ....");

   InputStream in = client.getInputStream();
   while(in.available()>0)
   {
      System.out.println("Unavailable...");
   }
   System.out.println("Received : " + in.read() );
   in.close();
} catch(Exception e) {
   System.out.println("Sender Error : " + e.toString());
}

Answer 1

In your client code I think you have to change the condition of the while loop:

while(in.available()==0) {
    System.out.println("Unavailable...");
}
System.out.println("Received : " + in.read() );
in.close()

Answer 2

   while(in.available()>0)
   {
      System.out.println("Unavailable...");
   }

This doesn't make any sense. available() returns the number of bytes that are available. If the result is positive, data is available, not unavailable.

However this loop is completely pointless, and should just be removed completely. The following read() will block as long as necessary.

Answer 3

I would say this this code

while(in.available()>0)
{
    System.out.println("Unavailable...");
}

would cause an endless loop if data was available.

try

while(in.available() == 0)