settings.xml配置

默认~/.m2/settings.xml不存在，需要拷贝%M2_HOME%/conf/settings.xml

全局范围%M2_HOME%/conf/settings.xml，一般不要改
用户范围~/.m2/settings.xml

1.  定义本地仓库的位置
默认本地仓库位置~/.m2/reponsitory
<settings>
 <localRepository>d:/maven-jars/reponsitory</localRepository>
</settings>

将本地构件(jar)安装到本地仓库
mvn clean install

2. 远程仓库认证
<settings>
 <servers>
  <server>
   <id>central</id>仓库的标识
   <username>proj-username</username>
   <password>proj-password</password>
  </server>
 </servers>
</settings>

3. 配置中央仓库镜像、私服镜像
<settings>
 <mirrors>
  <mirror>
   <id>my.maven.com</id>仓库的标识
   <name>my maven mirror</name>
   <url>http://maven.net.cn/content/groups/public/</url>
   <mirrorOf>central</mirrorOf>
  </mirror>
  
  <mirror>
   <id>my.maven.com</id>仓库的标识
   <name>my maven mirror</name>
   <url>http://IP/path</url>
   <mirrorOf>*</mirrorOf>
  </mirror>
 </mirrors>
</settings>

<mirrorOf>*</mirrorOf>  匹配所有远程仓库
<mirrorOf>external:*</mirrorOf> 匹配所有不在本级的远程仓库
<mirrorOf>rep1,rep2</mirrorOf> 匹配rep1和rep2两个远程仓库，多个远程仓库之间用逗号隔开
<mirrorOf>*,!rep1</mirrorOf> 匹配所有远程仓库，除了rep1