如何使用Socket类在Java中发布HTTP 1.1 Post？

I'm running a Tomcat server with some virtual hosts and I need to POST some data to a servlet on this server from another servlet on another server. Because the server that I am POSTing to uses virtual hosts just referring to this host by it's IP address will cause problem (it won't know what virtual host I'm trying to talk to).I'm running a Tomcat server with some virtual h