Minimal single threaded web server?

Question

Is there a library or code samples to implement a minimal, single threaded server for accepting and responding to HTTP GET/POST requests?
What I want to do is to accept a GET or POST request, run my own code which calculates something and send that back to the client as a response. The server only needs to accept and process one request at a time (the HTTP protocol is just used to make the interaction between a perl-written client and the Java algorithm simpler).
I wonder what the minimum-effort solution to this is.
PS: Sorry if this really belongs into the newbie-forum ...

Answer 1

johann_p wrote:
Is there a library or code samples to implement a minimal, single threaded server for accepting and responding to HTTP GET/POST requests?A library for this existing is rather unlikely, since it is such a small task. There are definitely some samples for this around, maybe Google can lead you to them.
What I want to do is to accept a GET or POST request, run my own code which calculates something and send that back to the client as a response. The server only needs to accept and process one request at a time (the HTTP protocol is just used to make the interaction between a perl-written client and the Java algorithm simpler).Well, create a ServerSocket, accept that, get the InputStream, wrap it in a Reader, read the first line, check if it's one of the supported methods, read the rest until you get an empty line (i.e. end of request), do your calculation, get the OutputStream, wrap it in a Writer, write out your answer (be sure to include the correct HTTP response + headers).
But everything (except for creating the ServerSocket) in a endless loop and you're set.
I wonder what the minimum-effort solution to this is.Pay someone to do it for you.