struts2使用response和request功能

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
	<!-- 覆盖掉Struts2一些常量的默认值 -->
    <constant name="struts.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="true" />
    <constant name="struts.action.extension" value="action,,do"></constant>
    <constant name="struts.configuration.xml.reload" value="true"></constant>
    <constant name="struts.locale" value="zh_CN"></constant>
	<package name="p1" extends="struts-default">
		<action name="test1" class="com.itheima.actions.ActionDemo1"></action>
	</package>
</struts>

package com.itheima.actions;

import java.io.IOException;

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

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

public class ActionDemo1 implements ServletResponseAware,ServletRequestAware{
	private HttpServletResponse response;
	private HttpServletRequest request;
	public String execute() throws IOException{
		//方式一：
//		ServletActionContext.getResponse().setContentType("text/html;charset=UTF-8");
//		ServletActionContext.getResponse().getWriter().write("你好");//不是Struts不起作用,没有用Struts2进行输出
//		
//		HttpSession session = ServletActionContext.getRequest().getSession();
		
		response.setContentType("text/html;charset=UTF-8");
		response.getWriter().write("吃了吗");
		
		return null;
	}
	public void setServletResponse(HttpServletResponse response) {
		this.response = response;
	}
	public void setServletRequest(HttpServletRequest request) {
		this.request = request;
	}
	
}