Is it possible to invoke an ajax request request (xmlhttprequest) as a web service request?

Question

I just started using angularjs with spring mvc as a backend. I use $resourceto access my server. I know that this is a recreation service, and $resourceis a module built using ajax. My doubts:

1) Is ajax used to use apis web service only?
2) Is ajax the only way to call a web service function?

Answer 1

1) Is ajax used to use apis web service only

, ajax - HTTP/HTTPS, , , , -/API.

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2) ajax -.

, , - , , HTTP/HTTPS, , , http://www.mywebservice.com/api/get/1 , -, .