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QuestionObjectInputStream block on server side Pin
Valentinor4-Dec-18 4:42
MemberValentinor4-Dec-18 4:42 
Hi,

I'll start with the code for both server and client, it is just a simple example:

Server
serverSocket = new ServerSocket(4554);
serverRunning = true;
while (serverRunning) {
    socket = serverSocket.accept();
    ObjectOutputStream dataOut = new ObjectOutputStream(socket.getOutputStream());
    ObjectInputStream dataIn = new ObjectInputStream(socket.getInputStream());
    System.out.println("Done 1");

    String string = dataIn.readUTF();
    System.out.println("Done 2");

    int number = dataIn.readInt();
    System.out.println("Done 3");

    dataOut.writeUTF("String from server");
    System.out.println("Done 4");

    dataOut.writeInt(1);
    System.out.println("Done 5");

    System.out.println(string + " | " + number);
}

Client
Socket socket = new Socket("localhost", 4554);
ObjectOutputStream dataOut = new ObjectOutputStream(socket.getOutputStream());
ObjectInputStream dataIn = new ObjectInputStream(socket.getInputStream());
System.out.println("Done 1");

dataOut.writeUTF("String from client");
System.out.println("Done 2");

dataOut.writeInt(2);
System.out.println("Done 3");

String string = dataIn.readUTF();
System.out.println("Done 4");

int number = dataIn.readInt();
System.out.println("Done 5");

socket.close();
System.out.println(string + " | " + number);

According to java Object Serialization, you need to create the ObjectOutputStream before ObjectInputStream in both Server and Client side, which I did, but the Client will run until it gets to the point of having to wait for data from the server (print the message "Done 3" then wait), but on the Server side, the code only runs until it gets to the point of reading the first thing from the Client (print "Done 1" then wait).
What else I need to do, beside creating the ObjectOutputStream before ObjectInputStream?

modified 4-Dec-18 10:49am.

Questionresearch methodology Pin
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QuestionWrite a Test to check if some config records exist in database Pin
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