Why Is My Java Socket Client Not Receiving Server Replies?

Java Socket: Addressing Unresponsive Server Replies to Client Requests

In the scenario presented, the client successfully sends a string to the server, prompting the server to process and respond. However, the client fails to receive the server's reply.

Root Cause:
The issue stems from the lack of line termination characters ("rn") added to the end of the strings written to the output streams. This hinders the communication between the client and server, resulting in the server's reply being unnoticed by the client.

Solution:
To resolve this, ensure that "rn" is appended to the string before sending it.

Client Modification:

string = "end";
out.write(string + "\r\n");
out.flush();

Server Modification:

out.write("to end" + "\r\n");
out.flush();
out.close();
System.out.println("end");

By adding the line termination characters, the communication flow between the client and server improves. The server's reply becomes recognizable by the client, allowing the desired print functionality on the client side to be achieved.

The above is the detailed content of Why Is My Java Socket Client Not Receiving Server Replies?. For more information, please follow other related articles on the PHP Chinese website!