@RequestBody optional (e.g. required=false)

Question

Is there a way to make the @RequestBody annotation options (e.g. required=false) like RequestParam supports?

My main path through the code is with a POST. However, I'd like to also support a basic GET request via a browser basic http request for debugging purposes. However when I try to do that I get a 415 unsupported media error.

Answer 1

My main path through the code is with a POST. However, I'd like to also support a basic GET request via a browser

To do this, use the method attribute of the @RequestMapping annotation, e.g.

@RequestMapping(value="/myPath", method=RequestMethod.GET)
public String doSomething() {
   ...
}

@RequestMapping(value="/myPath", method=RequestMethod.POST)
public String doSomething(@RequestBody payload) {
   ...
}

Answer 2

@RequestBody can apparently now be set as optional as of Spring 3.2M1: https://jira.springsource.org/browse/SPR-9239

However I have tested this in Spring 3.2M2 and its throwing an exception when sending through a null body even after setting required=false, instead of passing through a null. This issue has been confirmed and has been fixed, schedule for 3.2 RC1