struts2访问session，request，application
1.访问或添加request/session/application属性
public String scope() throws Exception{
ActionContextctx=ActionContext.getContext();
ctx.getApplication().put("app","应用范围");//往ServletContext里放入app
ctx.getSession().put("ses","session范围");//往session里放入ses
ctx.put("req","request范围");//往request里放入req
return"scope";
}JSP:
<body>
${applicationScope.app}<br>
${sessionScope.ses}<br>
${requestScope.req}<br>
</body>