1.1 Eclipse中创建Maven的web工程
此处省略一万字。。。
1.2 添加struts2依赖
这一步主要在maven的pom.xml文件中键入struts2-core依赖即可,pom文件参考如下:
<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.carson.demo</groupId> <artifactId>struts2</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>struts2 Maven Webapp</name> <url>http://maven.apache.org</url> <!-- 属性配置 --> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <!-- junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.9</version> <scope>test</scope> </dependency> <!-- struts2核心依赖包 --> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-core</artifactId> <version>2.3.24</version> </dependency> </dependencies> <build> <finalName>struts2</finalName> </build> </project>
设置好之后,maven会自动从远程仓库中下载struts2需要的其他依赖包到本地仓库如下:
1.3 新建一个Action
在src/main/java目录下新建一个TestAction.java
package com.struts.learn; import java.io.UnsupportedEncodingException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; public class TestAction extends ActionSupport { private static final long serialVersionUID = 1L; public String execute(){ return SUCCESS; } public String login() { try { HttpServletRequest request = ServletActionContext.getRequest(); HttpServletResponse response = ServletActionContext.getResponse(); request.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset=utf-8"); String username = request.getParameter("username"); String password = request.getParameter("password"); //页面跳转 if ("admin".equals(username) && "123456".equals(password)) { return SUCCESS; } else { return "login"; } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return SUCCESS; } }
1.4 配置struts.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.i18n.reload" value="false" /> <constant name="struts.devMode" value="false" /> <include file="struts-default.xml" /> <package name="default" extends="struts-default" namespace="/"> <action name="login" class="com.struts.learn.TestAction" method="login"> <result name="success">index.jsp</result> <result name="login">login.jsp</result> </action> </package> </struts>
配置好之后,那么问题来了。struts.xml文件要放在哪里呢?用过maven的都知道一般资源文件都是放在src/main/resources里面。
问:那么struts.xml文件是不是也要放在resources里面呢?
答:错。默认的情况下struts.xml要放在src/main/src里面,对了,就是和你的 .java文件放到一起。
问:那么struts.xml可不可以也放到resources里面呢?
答:可以,只要在web.xml中配置一下就可以了,具体请看 1.5
1.5配置web.xml
下面第七行 <init-param>处就是用来配置struts.xml的位置的。
<!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> <!-- 此处用来配置struts.xml的位置 --> <init-param> <param-name>config</param-name> <param-value>../../resources/struts.xml</param-value> </init-param> <!-- 此处用来配置struts2的核心Filter --> <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> <welcome-file-list> <welcome-file>login.jsp</welcome-file> </welcome-file-list> </web-app>
1.6 编写JSP文件
此处JSP摘自网络
<!-- login.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>登录界面</title> </head> <body> <form action="login" method="post"> <table> <tr> <td>用户名:</td> <td><input type="text" name="username" /> </td> </tr> <tr> <td>密码:</td> <td><input type="text" name="password" /> </td> </tr> <tr> <td colspan="2"> <input type="submit" value="登录" /> <input type="reset" value="重置" /></td> </tr> </table> </form> </body> </html>
<!-- index.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>Hello Maven</title> </head> <body> <p>大家好,欢迎进入Maven Struts2应用!</p> </body> </html>
最终的项目结构树如下图,需要修改或者添加的文件使用红框标出:
至此,Maven部署struts2环境结束,干净启动你Tomcat看看吧。
原文:http://my.oschina.net/kimyeongnam/blog/517745