Struts2(一)

一、Struts下载地址

http://struts.apache.org/download.cgi

二、导入包、配置Web.xml和struts.xml

在下载的包中从示例中找到一些包就可以 

struts2-2.3.4.1-all\struts-2.3.4.1\apps\struts2-blank\WEB-INF\lib

在Web.xml在加入

 <filter>

        <filter-name>struts2</filter-name>

        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

    </filter>



    <filter-mapping>

        <filter-name>struts2</filter-name>

        <url-pattern>/*</url-pattern>

    </filter-mapping>

  

struts.xml可以在struts2-2.3.4.1-all\struts-2.3.4.1\apps\struts2-blank\WEB-INF\classes下找到示例更改即可

<?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.enable.DynamicMethodInvocation" value="false" />

    <constant name="struts.devMode" value="false" />



    <package name="default" namespace="/" extends="struts-default">



        <default-action-ref name="index" />



        <global-results>

            <result name="error">/error.jsp</result>

        </global-results>



        <global-exception-mappings>

            <exception-mapping exception="java.lang.Exception" result="error"/>

        </global-exception-mappings>



        <action name="index">

            <result type="redirectAction">

                <param name="actionName">HelloWorld</param>

                <param name="namespace">/example</param>

            </result>

        </action>

    </package>



    <include file="example.xml"/>

    class="com.opensymphony.xwork2.ActionSupport"

 -->

    <!-- Add packages here -->

    <constant name="struts.devMode" value="true" />

<package name="default" namespace="/" extends="struts-default">

 

       

        <action name="hello" class="com.pb.web.action.HelloAction3">

            <result>

               /helloStruts.jsp

            </result>

        </action>

    </package>

</struts>

三、实现

action

 

package com.pb.web.action;



import com.opensymphony.xwork2.ActionSupport;

/*

 * 第三种 继承  ActionSupport类它是Action的实现类

 */

public class HelloAction3 extends ActionSupport {



    /**

     * 

     */

    private static final long serialVersionUID = 1L;



    @Override

    public String execute() throws Exception {

        // TODO Auto-generated method stub

        return "success";

    }

    



}

 

页面

helloStruts.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>HelloStruts</title>

</head>

<body>

<h1 align="center">Hello Struts!</h1>

</body>

</html>

在地址栏中输入http://localhost:8080/StrutsDemo1/hello.action

以hello.action访问就可以跳到helloStruts.jsp页面

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