what is the controller return type in spring?
Asked on December 08, 2013
any body please send to me please this is my mail id
srinivasthangallapally@gmail.com
srinivasthangallapally@gmail.com
Replied on December 08, 2013
In Spring MVC, the below return types are possible.
1. ModelAndView
2. Model
3. Map
4. View
5. String
6. void
7. Callable<?> : if application wants return asynchronously in thread managed MVC
8. When method is annotated with @ResponseBody, the return type is written directly to the response HTTP body.
@RequestMapping(value = "/somepattern", method = RequestMethod.PUT)
@ResponseBody
public String doTask() {
return "Hello World";
}
9. Set values in response header using HttpEntity as given below
HttpHeaders responseHeaders = new HttpHeaders();
responseHeaders.set("SomeResponseHeader", "some Value");
return new ResponseEntity<String>("Some Message", responseHeaders, HttpStatus.CREATED);
10. DeferredResult<?>
Find the link below for more detail from spring Doc
