Android/Java的RESTful web服务选项

First time Java programmer. I'm wondering what my options are for loading XML on the Android platform (java). There are few docs/demos on connectivity and data loading out there (AFAIK). I need to sign a request with basic authentication and then GET/POST/PUT/DELETE to a URL which will return application/xml content-type. Basically I need to emulate this type of cURL request in Java:First time Java programmer. I'm wondering what