Action类中通过ServletActionContext来获取web资源

1 . 获取方法如下：

package com.xuzhiwen.test;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.struts2.ServletActionContext;

public class ServletAction {

    public String getServletAction(){
        //request
        HttpServletRequest request = ServletActionContext.getRequest();
        //session
        HttpSession session = request.getSession();
        //servletContext
        ServletContext servletContext = ServletActionContext.getServletContext();
        return "success";
    }
}