Action类中通过ServlexxxAware接口的方式来获取来获取web资源

1. 获取方式如下：

package com.xuzhiwen.test;

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

import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import org.apache.struts2.util.ServletContextAware;

public class ActionContextByInter implements ServletRequestAware,ServletResponseAware,ServletContextAware{
    private HttpServletRequest request;
    private ServletContext servletContext;
    private HttpServletResponse response;
    
    @Override
    public void setServletRequest(HttpServletRequest request) {
        this.request = request;
    }

    @Override
    public void setServletContext(ServletContext servletContext) {
        this.servletContext = servletContext;
    }

    @Override
    public void setServletResponse(HttpServletResponse response) {
        this.response = response;
    }
}