java - learning Spring's @RequestBody and @RequestParam -

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i'm editing web project uses spring , need adding of spring's annotations. 2 of ones i'm adding @requestbody , @requestparam. i've been poking around little , found this, still don't understand how use these annotations. provide example?

controller example:

@controller class foocontroller {     @requestmapping("...")     void bar(@requestbody string body, @requestparam("baz") baz) {         //method body     } }

@requestbody: variable body contain body of http request

@requestparam: variable baz hold value of request parameter baz


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