将Java Server与Python客户端连接

Question

So here's the thing, I have a basic java server that sends back to the client what ever it receives from it. The client is written in python. I'm able to make the first connection as in the server sends the client a message confirming the connection. But when I want the client to send the server something is does nothing. I'm not sure if the problem with the client not sending or the server not receiving.

Here's the code for the server:

    int portNumber = Integer.parseInt(args[0]);

    try ( 
        ServerSocket serverSocket = new ServerSocket(portNumber);
        Socket clientSocket = serverSocket.accept();
        PrintWriter outs =
            new PrintWriter(clientSocket.getOutputStream(), true);
        BufferedReader in = new BufferedReader(
            new InputStreamReader(clientSocket.getInputStream()));
    ) {

        String inputLine, outputLine;


        outputLine = "Hello socket, I'm server";
        outs.println(outputLine);
        outs.println("I' connected");
        while ((inputLine = in.readLine()) != null) {
             outputLine = inputLine;
            outs.println(outputLine);
            if (outputLine.equals("Bye."))
                break;

        }

    } catch (IOException e) {
        System.out.println("Exception caught when trying to listen on port "
            + portNumber + " or listening for a connection");
        System.out.println(e.getMessage());
    }
}  }

and here's the client :

import socket

HOST = "localhost"
PORT = 8080

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((HOST, PORT))
print (socket.getaddrinfo(HOST,PORT))
buffer_size = 100

while True :  
    data = sock.recv(buffer_size)     
    print ('you recieved :' , data)
    test = input('send here\n')     
    sock.sendall(bytes(test, 'utf-8'))
    print ('you sent : ' , test)

Answer 1

In the Python client: Your prompt contains a \\n but the result from input does not? Try adding a \\n to test before sending.