Struts2中ActionContext

• Action中定义赋值：

ActionContext ctx = ActionContext.getContext();
ctx.getApplication().put("simon", "23");
ctx.getSession().put("kitty", "12");
ctx.put("lucy", "12");

• 在JSP中调用：

${ applicationScope.simon }
${ sessionScope.kitty }
${ requestScope.lucy }