使用eclipse 建立maven项目(webapp)html
右键 new>othrerjava
nextweb
选择Artifact Id :maven-archetype-webapp 那一项apache
GroupID是项目组织惟一的标识符,实际对应JAVA的包的结构,是main目录里java的目录结构。浏览器
ArtifactID就是项目的惟一的标识符,实际对应项目的名称,就是项目根目录的名称。 通常GroupID就是填com.leafive.test这样子。tomcat
在pom中加入sturts2依赖app
添加struts2依赖到的pom.xml 此处使用的是 版本是3.8.1,保存文件后 maven 会自动下载依赖的相关包eclipse
pom.xml内容:webapp
<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.str2</groupId> <artifactId>struts</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>struts 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> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-core</artifactId> <version>2.3.8</version> </dependency> <dependency> <groupId>javassist</groupId> <artifactId>javassist</artifactId> <version>3.12.1.GA</version> </dependency> </dependencies> <build> <finalName>struts</finalName> </build> </project>
3.在src/main下建立 文件结构:java/action/user.javajsp
userAction.java 内容
package com.struts.action; public class UserAction { private String name; private String password; public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String execute() { return "success"; } public String user_login_go() { return "success"; } public String login_go() { return "success"; } public String user_login() { return "success"; } public String login() { return "success"; } }
在resource包下 建立struts2文件
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="user" namespace="/" extends="struts-default"> <action name="user_login_go" class="com.struts.action.UserAction" method="user_login"> <result name="success">/login.jsp</result> </action> <action name="login_go" class="com.struts.action.UserAction" method="login"> <result name="success">/welcome.jsp</result> </action> </package> </struts>
配置 src/main/webapp/WEB-INF/web.xml
web.xml 内容
<!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> <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> </web-app>
在 src/main/webapp/WEB-INF/ 下建立一个空的文件夹 classes
在 src/main/webapp/ 建立文件inde.jsp
index.jsp
<%@ page 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> <body> <h2>Struts2-Demo</h2> <a href="user_login_go">去登陆界面</a> </body> </html>
在 src/main/webapp/建立文件 login.jsp
login.jsp
<%@ page 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>struts2-Demo-登陆界面</title> </head> <body> <p>struts2-Demo-登陆界面</p> <form action="login_go" method="post"> name:<input type="text" name="name" /> password<input type="password" name="password" /> <input type="submit" value="登陆" /> </form> </body> </html>
在 src/main/webapp/ 建立文件 welcome.jsp
welcome.jsp
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="s" uri="/struts-tags" %> <!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>Struts2-Demo-欢迎页面</title> </head> <body> Welcome: <br> <h1>name=<s:property value="name" /></h1> <h1>password=<s:property value="password" /></h1> <h1>从新登陆</h1> <s:form action="login_go" namespace="/" method="post"> <s:textfield name="name" label="name"></s:textfield> <s:password name="password" label="password"></s:password> <s:submit value="Login"></s:submit> </s:form> </body> </html>
在项目上右键 Build path> configure Build path 配置项目相关 变量
source 选择编译的目录 咱们选择 java 和resources 这两个目录
Libraries 添加
jre7:Add Librars> Jre System library
Tomcat7 :Add Librars> Server Runtime> Apache Tomcat V7.0 前提你的eclipse已经配置了Tomcat
在项目上右键 run as> run on serve 选择Tomcat7 启动Tomcat 在浏览器访问:localhost:8080/struts2/
出现错误的缘由:
tomcat 是否配置成功
建立 java目录 和classes 目录的路径是否正确
tomcat 访问路径是否正确
pom.xml 配置后是否自动下载了struts2的包