使用Spring Security时，获取bean中当前用户名（即SecurityContext）信息的正确方法是什么？ [英] When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext) information in a bean?

问题描述

我有一个使用Spring Security的Spring MVC Web应用程序。我想知道当前登录用户的用户名。我正在使用下面给出的代码段。这是接受的方式吗？

I have a Spring MVC web app which uses Spring Security. I want to know the username of the currently logged in user. I'm using the code snippet given below . Is this the accepted way?

我不喜欢在这个控制器中调用静态方法 - 这违背了Spring的全部目的，恕我直言。有没有办法配置应用程序以注入当前的SecurityContext或当前的身份验证？

I don't like having a call to a static method inside this controller - that defeats the whole purpose of Spring, IMHO. Is there a way to configure the app to have the current SecurityContext, or current Authentication, injected instead?

  @RequestMapping(method = RequestMethod.GET)
  public ModelAndView showResults(final HttpServletRequest request...) {
    final String currentUser = SecurityContextHolder.getContext().getAuthentication().getName();
    ...
  }

推荐答案

如果您使用 Spring 3 ，最简单的方法是：

If you are using Spring 3, the easiest way is:

 @RequestMapping(method = RequestMethod.GET)   
 public ModelAndView showResults(final HttpServletRequest request, Principal principal) {

     final String currentUser = principal.getName();

 }

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