springmvc 获取用户报错:No thread-bound request found: Are you referring to request attributes outside of a

获取用户报错:No thread-bound request found: Are you referring to request attributes outside of an aceb request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.

注释掉 HttpServletRequest request;

/*    @Autowired
    private HttpServletRequest request;*/

 

 

 

1.解释：RequestContextHolder顾名思义,持有上下文的Request容器

RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes();
2.获取session对象的内容：
requestAttributes.
        getAttribute(AccountAdminFilter.DEFAULT_ADMIN_ATTR_NAME, RequestAttributes.SCOPE_REQUEST);

第二个值可以有三个值：

int SCOPE_REQUEST = 0;
int SCOPE_SESSION = 1;
int SCOPE_GLOBAL_SESSION = 2;
分别获取request，session，全局session对象；

3.获取的对象需要经过强转为所需对象；
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原文链接：https://blog.youkuaiyun.com/qq_34638435/article/details/79911002