I've created a web service using Axis2 on eclipse, and now I'm trying to test it via a Java SE client. Axis2, it seems doesn't work that way. So, could someone please sugest a way for me to achieve this?
Axis2 comes with a tool that can create client-side code to access a WS as defined by a WSDL; it's called wsdl2java, and is probably the simplest way to create your client code. The code it generates runs fine in Java SE.
If that's not what you're using, tell us how you created your client code, and what "Axis2, it seems doesn't work that way." means.