struts2ServletAPI注入

最新推荐文章于 2024-02-02 17:13:46 发布

原创最新推荐文章于 2024-02-02 17:13:46 发布 · 279 阅读

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CC 4.0 BY-SA版权

本文介绍了一个使用Struts2框架实现的链式调用示例，通过配置文件定义了多个Action之间的调用流程，并展示了如何在Action中进行数据处理与传递。

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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>