apache-shiro杂记(三) 用了apache-shiro后，HttpSession.getServletContext() API无法正常工作了
用了apache-shiro以后，偶然发现servlet环境下(我开发时用的servlet3.0) HttpSession.getServletContext() 一直返回的是null
查看了ShiroHttpSession实现类的源代码，结合shiro官方文档。发现修改web.xml可以解决这个问题。
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"version="3.0"><!-- apache-shiro 核心拦截器 --><filter><filter-name>shiroFilter</filter-name><filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class><init-param><param-name>targetFilterLifecycle</param-name><param-value>true</param-value></init-param></filter><filter-mapping><filter-name>shiroFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping></web-app>
