struts2ServletAPI注入

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UserAction

package cn.happy.day06result;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;import com.opensymphony.xwork2.Result;import org.apache.struts2.dispatcher.ServletActionRedirectResult;import java.util.Map;/** * Created by 晴晴 on 2017-10-22. */public class UserAction extends ActionSupport {    public  String del(){        return "del";    }    public  String list(){        Map<String,Object> request = (Map<String,Object>)ActionContext.getContext().get("request");        request.put("uname","百里哥哥");        return  "list";    }    public String add(){        Map<String,Object> request = (Map<String,Object>)ActionContext.getContext().get("request");        Object uname = request.get("uname");        System.out.println(uname+"================");        request.put("info","数据");        return "add";    }}
struts-day06.xml
<?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><constant name="struts.devMode" value="true"></constant><package name="day06" namespace="/" extends="struts-default">    <action name="userActionResult" class="cn.happy.day06result.UserAction" method="list">        <result name="list" type="chain">            <!--植入两个子节点-->            <param name="actionName">userActionResultAdd</param>            <param name="namespace">/</param>        </result>    </action>    <action name="userActionResultAdd" class="cn.happy.day06result.UserAction" method="add">        <result name="add">/day06/add.jsp</result>    </action></package></struts>
jsp页面

<%@ taglib prefix="s" uri="/struts-tags" %><%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %><html><head>    <title>Title</title></head><body><s:debug/>${info}${uname}<h2>Day06 Add</h2></body></html>

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