Danubian Sailor Danubian Sailor - 2 months ago 26
Java Question

How to get logged user name/Principal in Spring MVC REST channel?

I have Spring MVC REST channel:

@Controller
@RequestMapping("/rest")
public class REST {


and I have my method:

@RequestMapping(value = "/doSomething")
public @ResponseBody DoSomethingResultDTO doSomething(
@RequestBody DoSomethingRequestDTO)


Now I need the name of the user that is logged in. Normally I could do it by the method

HttpServletRequest.getUserPrincipal()


but how to get it here? I have annotations for headers (
@RequestHeader
), or even cookies (
@CookieValue
). But how can I get the
Principal
in my method?

Answer

You can inject Principal object to your controller handler method

@RequestMapping(value = "/doSomething")
public @ResponseBody DoSomethingResultDTO doSomething(
    @RequestBody DoSomethingRequestDTO, Principal principal)

See the spring reference manual for more info