可以用#访问 Request, Session, Application 等
Action
public String execute() {
// set value into session
ActionContext.getContext().getSession().put("key", "session scope value");
// set value into request
HttpServletRequest request = ServletActionContext.getRequest();
request.setAttribute("key", "request scope value");
return SUCCESS;
}
JSP
<h2>
<s:property value="#session.key" />
</h2>
<h2>
<s:property value="#request.key" />
</h2>
结果如下:
session scope value
request scope value