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Maven学习(五)- 使用Maven构建Struts2项目

2015-11-19 17:10 525 查看
在前两篇博客中,使用Maven构建了Web项目,在这篇博客中写一下,怎样构建一个简单的Struts2项目。

在准备过程中发现,要使用好Maven,个人觉得要好好利用这两个网站:

http://mvnrepository.com/

http://search.maven.org/

由于自己对Maven的理解不是非常深,所以学习的时候遇到很多简单的问题都没法解决

,走了很多弯路


1. 新建一个基本的Web项目

这和前面讲的是一样的,可以参考前面的博客


2. 添加Struts2依赖

这里主需要在pom.xml中添加一个struts-core的依赖即可:

<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.deppon.demo</groupId>
<artifactId>test02</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>test02 Maven Webapp</name>
<url>http://maven.apache.org</url>

<!-- 属性配置 -->
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>

<!-- 添加JUnit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>

<!-- Struts2 依赖 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>2.3.1</version>
</dependency>

</dependencies>
<build>
<finalName>test02</finalName>
</build>
</project>


之后,Maven会自动从网上下载struts2需要的其他依赖包,可以看一下这里:



是不是都有了,有的时候Maven可能会报错,由于网络的原因(个人认为大多是网络问题,导致下载依赖包出错

),可以从上面提到的两个网站手动下载


3. 新建一个Action

package com.deppon.test02.action;

import com.opensymphony.xwork2.ActionSupport;

public class UserAction extends ActionSupport {
private static final long serialVersionUID = -1417237614181805435L;

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;
}

/**
* 跳转到登录界面
* @return
*/
public String login_input() {
return SUCCESS;
}

/**
* 登录
* @return
*/
public String login() {
System.out.println("name->" + name);
System.out.println("password->" + password);

return SUCCESS;
}
}


struts.xml

<?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>
<constant name="struts.i18n.encoding" value="utf-8"></constant>
<constant name="struts.multipart.maxSize" value="20971520"/>
<constant name="struts.devMode" value="true" />

<package name="p_user" namespace="/" extends="struts-default">
<action name="login_input" class="com.deppon.test02.action.UserAction" method="login_input">
<result name="success">
/login.jsp
</result>
</action>

<action name="login" class="com.deppon.test02.action.UserAction" method="login">
<result name="success">
/login_success.jsp
</result>
</action>
</package>

</struts>


web.xml

<!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>

<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>


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>主页</title>
</head>

<body>
<a href="login_input">去登陆</a>
</body>
</html>


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">
name:<input type="text" name="name" />
password:<input type="password" name="password" />

<input type="submit" value="登录" />
</form>
</body>
</html>


login_success.jsp

<%@ page language="java" 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>登录成功</title>
</head>

<body>
<s:form action="login" 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>
项目结构如下图所示:

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