存储库——Repository
1. 本地存储库
原理:
运行Maven的时候,Maven所需要的任何构件都是直接从本地仓库获取的。如果本地仓库没有,它会首先尝试从远程仓库下载构件至本地仓库,然后再使用本地仓库的构件。
默認為:${user.home}/.m2/repository。通過localRepository修改
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
<!-- localRepository
| The path to the local repository maven will use to store artifacts.
|
| Default: ${user.home}/.m2/repository
-->
<localRepository>D:\apache-maven-3.5.0\localRepo</localRepository>
</setting>
指定本地倉庫:
mvn clean install -Dmaven.repo.local=D:\apache-maven-3.5.0\localRepo
2. 中央存储库
<repositories>
<repository>
<id>central</id>
<name>Maven Repository Switchboard</name>
<layout>default</layout>
<url>http://repo1.maven.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
中央仓库的id为central,远程url地址为http://repo1.maven.org/maven2,它关闭了snapshot版本构件下载的支持。
3. 远程仓库配置
傳說中的私服。
如中國鏡像:
<project>
...
<repositories>
<repository>
<id>maven-net-cn</id>
<name>Maven China Mirror</name>
<url>http://maven.net.cn/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>maven-net-cn</id>
<name>Maven China Mirror</name>
<url>http://maven.net.cn/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
...
</project>
Setting.xml中配置:
<settings>
...
<profiles>
<profile>
<id>dev</id>
<!-- repositories and pluginRepositories here-->
</profile>
</profiles>
<activeProfiles>
<activeProfile>dev</activeProfile>
</activeProfiles>
...
</settings>