Java Sockets and Winsock (TCP)

[davidchardonnet]

Hello,

I have a C++ TCP server using WinSock in C++, and I try to use a Java Applet that already works with a Java TCP Server. I want to replace de Java server by the C++ Server.

But when I try to connect the java client, the C++ server tells it receives 4 data bytes and prints on the screen 2 strange characters. And the same thing occurs when I send data.

The C++ server works well with a C++ client, and that's the reason why I come here

Do you have an idea of what it can be?
Thank you

David

 

[sayantam]

hi , this is because java and c++ allocates diffrent byte sizes for same/similar data types. for ex u must be aware that java string is in UTF format while c++ is ascii. Similarly for other variables. I think u'll have to put a jni layer b/w ur java client and c++ server, to make comaptible the data-types. hope this helps.