如何使用Fiddler2或类似工具从Java web应用程序捕获HTTP(S)通信?

I want to capture data that my web application sends and receives from a CAS server via HTTPS. I tried using Fiddler2, but couldn't make it capture traffic from Java web application. It seems I need to configure it to use Fiddler2 as a proxy. How do I do it correctly?I want to capture data that my web application