Get Port Number & Host Name in a Spring Application on Tomcat Server

My application is an Spring framework 3.1.2 based Web-application deployed on Apache tomcat 6.

I need to get my running application port-number and host-name on application(server) Start-up. So that I would override it on a property and it is need for Other bean initialization.

Does the spring provides any options to retrieves these details and to set it on Server Startup?..