在Gradle或Maven中切换中央仓库地址为国内镜像源以加速jar包下载

背景

众所周知maven中央仓库位于国外服务器,国内朋友在下载时比较缓慢,常常在构建一个新项目时要等待比较长的时间。如果能够直接从国内服务器下载,那将大幅缩短项目构建时间,下面介绍一下切换源的方法。

阿里云代理仓库

maven.aliyun.com 代理了很多公共的maven仓库。使用maven.aliyun.com中的仓库地址作为下载源,速度更快更稳定。

代理的仓库列表

仓库名称 代理源地址 使用地址
central https://repo1.maven.org/maven2/ https://maven.aliyun.com/repository/centralhttps://maven.aliyun.com/nexus/content/repositories/central
jcenter http://jcenter.bintray.com/ https://maven.aliyun.com/repository/jcenterhttps://maven.aliyun.com/nexus/content/repositories/jcenter
public central仓和jcenter仓的聚合仓 https://maven.aliyun.com/repository/publichttps://maven.aliyun.com/nexus/content/groups/public
google https://maven.google.com/ https://maven.aliyun.com/repository/googlehttps://maven.aliyun.com/nexus/content/repositories/google
gradle-plugin https://plugins.gradle.org/m2/ https://maven.aliyun.com/repository/gradle-pluginhttps://maven.aliyun.com/nexus/content/repositories/gradle-plugin
spring http://repo.spring.io/libs-milestone/ https://maven.aliyun.com/repository/springhttps://maven.aliyun.com/nexus/content/repositories/spring
spring-plugin http://repo.spring.io/plugins-release/ https://maven.aliyun.com/repository/spring-pluginhttps://maven.aliyun.com/nexus/content/repositories/spring-plugin
grails-core https://repo.grails.org/grails/core https://maven.aliyun.com/repository/grails-corehttps://maven.aliyun.com/nexus/content/repositories/grails-core
apache snapshots https://repository.apache.org/snapshots/ https://maven.aliyun.com/repository/apache-snapshotshttps://maven.aliyun.com/nexus/content/repositories/apache-snapshots

切换阿里云Maven代理仓库

maven

在这里我们使用阿里云的源,它的速度还是相当快的。在Maven安装目录找到 settings.xml (windows机器一般在maven安装目录的conf/settings.xml),在 <mirrors></mirrors> 标签中添加mirror子节点:

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<mirror>
<id>aliyunmaven</id>
<mirrorOf>*</mirrorOf>
<name>阿里云公共仓库</name>
<url>https://maven.aliyun.com/repository/public</url>
</mirror>

如果想使用其它代理仓库,可在 <repositories></repositories> 节点中加入对应的仓库使用地址。以使用spring代理仓为例:

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<repository>
<id>spring</id>
<url>https://maven.aliyun.com/repository/spring</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>

gradle

在项目 build.gradle 文件中加入以下代码:

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allprojects {
repositories {
maven { url 'https://maven.aliyun.com/repository/public/' }
mavenLocal()
mavenCentral()
}
}

如果想使用 maven.aliyun.com 提供的其它代理仓,以使用spring仓为例:

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allProjects {
repositories {
maven { url 'https://maven.aliyun.com/repository/public/' }
maven { url 'https://maven.aliyun.com/repository/spring/'}
mavenLocal()
mavenCentral()
}
}