spring mvc中获取HttpServletRequest的方法。
转自：http://blog.csdn.net/wfcaven/article/details/5837181

在web.xml中配置一个监听

<listener>        <listener-class>            org.springframework.web.context.request.RequestContextListener        </listener-class>    </listener>

HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();