Struts2（一）

2019-11-14 23:30:13

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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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