如何显示使用DatagramSocket.receive作为字符串的udp服务器的响应？

Question

I use DatagramSocket in android application. I am sending request from client to server. The server responds with a string value either 1 or 0 . My code sample is as follow:

// client sends
socket.send(datagrampacket); 

//Server have
socket.receive (datagrampacket);

I am using Logging to display the response coming from the server, but i don't know how to show the server response (the string received 0 or 1).

after server responding .. how can i receive datagrampacket on client side (as string it might be 0 or 1) ?

Answer 1

socket.receive() will block until it received data. the received data will be in the datagrampacket byte-array.

to display it, convert the byte-array to a string, eg in java this will look like:

byte[]data=datagrampacket.getData();
int offset=datagrampacket.getOffset();
int length=datagrampacket.getLenght();
System.out.println( new String(data, offset, length) ) ;