java httpserver printing

Question

Hi, I'm working on a project, where users call a httpserver with some parameters (example: http://localhost:5000/asdf?test=123&test2=1234). The Server should then print the parameters onto a cardprinter. Until last week i used a TCP Server socket for hosting the server and a DocPrintjob for printing. Now I try to do the same by using the com.sun.httpserver and DocPrintjob, but the program does not print anything and does not return from Docprintjob.print(....) Any Ideas?

Thanks in advance!!!!!