No thread-bound request found: Are you referring to request attributes outside of an actual web

没有使用session、request、response时，正常。

但使用了上述3个域，报了如下错误

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.

 

在web.xml中加入：

   org.springframework.web.context.request.RequestContextListener