Question

我有Spring MVC REST频道：

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

我有我的方法：

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

现在我需要登录用户的名字。通常我可以通过方法

来完成

HttpServletRequest.getUserPrincipal()

但如何在这里得到它？我有标题（@RequestHeader），甚至是Cookie（@CookieValue）的注释。但是如何在我的方法中获得Principal？

Answer 1

您可以将Principal对象注入控制器处理程序方法

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

请参阅the spring reference manual for more info

Answer 2

您还可以通过注释来假设CustomUser实现UserDetails

@RequestMapping(value = { "/home" }, method = RequestMethod.GET)
public String home(@AuthenticationPrincipal CustomUser customUser, Model model, HttpServletRequest request,
        HttpServletResponse response, Locale locale) throws Exception {

    System.out.println("Entering Home Controller @AuthenticationPrincipal: " + customUser);
}

public class CustomUser implements UserDetails { // code omitted }

如何在Spring MVC REST通道中获取登录的用户名/ Principal？

2 个答案: