<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com</groupId>

    <artifactId>StrutsDemo</artifactId>

    <packaging>war</packaging>

    <version>0.0.1-SNAPSHOT</version>

    <name>StrutsDemo Maven Webapp</name>

    <url>http://maven.apache.org</url>

    <dependencies>

        <dependency>

            <groupId>junit</groupId>

            <artifactId>junit</artifactId>

            <version>3.8.1</version>

            <scope>test</scope>

        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.struts/struts2-core -->

        <dependency>

            <groupId>org.apache.struts</groupId>

            <artifactId>struts2-core</artifactId>

            <version>2.5.16</version>

        </dependency>

       <!--下面这两个插件,是注解方式必须要加载的-->
       <!-- https://mvnrepository.com/artifact/org.apache.struts/struts2-convention-plugin -->

        <dependency>

            <groupId>org.apache.struts</groupId>

            <artifactId>struts2-convention-plugin</artifactId>

            <version>2.5.16</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.struts/struts2-config-browser-plugin -->

        <dependency>

            <groupId>org.apache.struts</groupId>

            <artifactId>struts2-config-browser-plugin</artifactId>

            <version>2.5.16</version>

        </dependency>

    </dependencies>

    <build>

        <finalName>StrutsDemo</finalName>

        <plugins>

            <plugin>

                <groupId>org.apache.maven.plugins</groupId>

                <artifactId>maven-compiler-plugin</artifactId>

                <version>3.1</version>

                <configuration>

                    <source>1.8</source>

                    <target>1.8</target>

                </configuration>

            </plugin>

        </plugins>

    </build>

</project>

<?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>

    <!-- 所有匹配*.action的请求都由struts2处理 -->

    <constant name="struts.action.extension" value="action" />

    <!-- 是否启用开发模式 -->

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

    <!-- struts配置文件改动后，是否重新加载 -->

    <constant name="struts.configuration.xml.reload" value="true" />

    <!-- 设置浏览器是否缓存静态内容 -->

    <constant name="struts.serve.static.browserCache" value="false" />

    <!-- 请求参数的编码方式 -->

    <constant name="struts.i18n.encoding" value="utf-8" />

    <!-- 每次HTTP请求系统都重新加载资源文件，有助于开发 -->

    <constant name="struts.i18n.reload" value="true" />

    <!-- 文件上传最大值 -->

    <constant name="struts.multipart.maxSize" value="104857600" />

    <!-- 让struts2支持动态方法调用 -->

    <constant name="struts.enable.DynamicMethodInvocation" value="true" />

    <!-- Action名称中是否还是用斜线 -->

    <constant name="struts.enable.SlashesInActionNames" value="false" />

    <!-- 允许标签中使用表达式语法 -->

    <constant name="struts.tag.altSyntax" value="true" />

    <!-- 对于WebLogic,Orion,OC4J此属性应该设置成true -->

    <constant name="struts.dispatcher.parametersWorkaround" value="false" />

    <package name="basePackage" extends="struts-default">

    </package>

</struts>

<!DOCTYPE web-app PUBLIC

 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>

  <display-name>Archetype Created Web Application</display-name>

  <!-- add struts2 configiguration -->

    <filter>

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

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

    </filter>

    <filter-mapping>

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

        <url-pattern>*.action</url-pattern>

    </filter-mapping>

    <!-- end add struts2 configuration-->

    <!-- 项目默认页 -->

    <welcome-file-list>

        <welcome-file>/index.jsp</welcome-file>

    </welcome-file-list>

</web-app>

package com.strutsdemo.action;

import org.apache.struts2.convention.annotation.Action;

import org.apache.struts2.convention.annotation.Namespace;

import org.apache.struts2.convention.annotation.ParentPackage;

import org.apache.struts2.convention.annotation.Result;

@ParentPackage("basePackage")

@Action

@Namespace("/")

public class TestAction {

     // http://localhost:8080/StrutsDemo/print!printSome.action
     // 这里是通过注解的方式来输出前台页面,
     // 大致的流程
     // 1. 输入的url http://localhost:8080/StrutsDemo/print!printSome.action
     // 2. action定位到TestAction的printSome方法, 因为注解value="print"
     // 3. printSome方法返回print字符串, 而在我们注解results当中name="print",相互匹配, 所以会跳转到/page/print.jsp页面中
     // 个人认为，通过注解方式可以很大程度上节省代码量，让代码更简单

    @Action(value="print", results= {@Result(name="print", location="/page/print.jsp")})

    public String printSome(){

        System.out.println("TestAction printSome");

        return "print";

    }

}

<%@ 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>Insert title here</title>

</head>

<body>

    <h2>print something</h2>

</body>

</html>

print something