maven安装

转自：http://www.cnblogs.com/happyframework/p/3391691.html

1. 下载

地址：http://maven.apache.org/。解压缩，比如放在D:Program Filesapache-maven-3.0.4处。

2. 环境变量配置

配置环境变量 MAVEN_HOME=D:Program Filesapache-maven-3.0.4  把MAVEN_HOME加入到PATH中 xxxx;%MAVEN_HOME%in

保存后，在控制台中输入mvn -version。若能输出版本信息，则maven安装成功。

3. maven仓库配置

maven仓库是用来放置下载到的各种Jar包的。

在D:Program Filesapache-maven-3.0.4conf下面找到settings.xml 配置maven的仓库（当然可以默认）

<!-- localRepository
| The path to the local repository maven will use to store artifacts.
|
| Default: ${user.home}/.m2/repository
<localRepository>/path/to/local/repo</localRepository>
-->
<localRepository>D:/Program Files/apache-maven-3.0.4/repositories</localRepository>　　

5. maven镜像配置

maven镜像用来配置从哪里下载jar包。settings.xml中默认的镜像地址可能下载Jar包比较慢，可以自已配置下载快的镜像地址。比如：

D:Program Filesapache-maven-3.0.4confsettings.xml

<mirrors>
    <!-- mirror
     | Specifies a repository mirror site to use instead of a given repository. The repository that
     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
     |
    <mirror>
      <id>mirrorId</id>
      <mirrorOf>repositoryId</mirrorOf>
      <name>Human Readable Name for this Mirror.</name>
      <url>http://my.repository.com/repo/path</url>
    </mirror>
     -->
     <mirror>  
      <id>repo2</id>  
      <mirrorOf>central</mirrorOf>  
      <name>Human Readable Name for this Mirror.</name>  
      <url>http://repo2.maven.org/maven2/</url>  
    </mirror>  
<mirror>  
      <id>net-cn</id>  
      <mirrorOf>central</mirrorOf>  
      <name>Human Readable Name for this Mirror.</name>  
      <url>http://maven.net.cn/content/groups/public/</url>   
    </mirror>  
<mirror>  
      <id>ui</id>  
      <mirrorOf>central</mirrorOf>  
      <name>Human Readable Name for this Mirror.</name>  
     <url>http://uk.maven.org/maven2/</url>  
    </mirror>  
<mirror>  
      <id>ibiblio</id>  
      <mirrorOf>central</mirrorOf>  
      <name>Human Readable Name for this Mirror.</name>  
     <url>http://mirrors.ibiblio.org/pub/mirrors/maven2/</url>  
    </mirror>  
<mirror>  
      <id>jboss-public-repository-group</id>  
      <mirrorOf>central</mirrorOf>  
      <name>JBoss Public Repository Group</name>  
     <url>http://repository.jboss.org/nexus/content/groups/public</url>  
    </mirror>  
  </mirrors>

6. maven 的两份settings.xml

settings.xml存在于两个地方：

1.安装的地方：D:Program Filesapache-maven-3.0.4confsettings.xml

2.用户的目录：${user.home}/.m2/settings.xml

前者又被叫做全局配置，后者被称为用户配置。如果两者都存在，它们的内容将被合并，并且用户范围的settings.xml优先。