springboot 测试 有注入HttpSession的bean

question:　

　　nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web 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/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.

solution:

　　RequestContextHolder.setRequestAttributes(new ServletWebRequest(new MockHttpServletRequest()));