maven pom中的repository节点配置没有起作用

问题描述

昨天晚上想用spring boot快速搭建一个web开发的项目，就打开spring boot的doc，按照说明开始尝试。没想到出师未捷身先死，第一步就挂了。

以下是spring boot的配置文件,参考：http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#getting-started-first-application

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion>

<groupId>com.example</groupId>
<artifactId>myproject</artifactId>
<version>0.0.1-SNAPSHOT</version>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.2.BUILD-SNAPSHOT</version>
</parent>

<!-- Additional lines to be added here... -->

<!-- (you don't need this if you are using a .RELEASE version) -->
<repositories>
<repository>
<id>spring-snapshots</id>
<url>http://repo.spring.io/snapshot</url>
<snapshots><enabled>true</enabled></snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<url>http://repo.spring.io/milestone</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<url>http://repo.spring.io/snapshot</url>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<url>http://repo.spring.io/milestone</url>
</pluginRepository>
</pluginRepositories>
</project>

然后开心的mvn package，就报错了。错误如下：


百思不得其姐啊，maven 应该是先找当前项目的repository，然后找本地，然后再找私服，最后找中央仓库才对啊！明明在pom.xml里面配置了repository了啊！

解决方案

今天有点时间，自己分析了下然后Google了下，解决了这个问题。问题原因及方案如下：

<mirror>
<id>ibiblio</id>
<mirrorOf>*</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://mirrors.ibiblio.org/pub/mirrors/maven2/</url>
</mirror>

* = everything
external:* = everything not on the localhost and not file based.
repo,repo1 = repo or repo1
*,!repo1 = everything except repo1

扩展知识

maven的私服配置：http://my.oschina.net/liangbo/blog/195739

深入比较几种maven仓库的优先级：http://toozhao.com/2012/07/13/compare-priority-of-maven-repository/

http://maven.apache.org/guides/mini/guide-mirror-settings.html

Maven最佳实践--Maven仓库：http://juvenshun.iteye.com/blog/359256

Maven仓库管理之Nexus：http://my.oschina.net/aiguozhe/blog/101537

其它需要注意的问题及推荐

尽量不要配置mirrorOf为*

私服的配置推荐用profile配置而不是mirror（毕竟mirror是镜像，私服其实是n个镜像及自己的开发库等的合集）

<profile>
<id>nexus</id>
<repositories>
<repository>
<id>nexus</id>
<url>http://192.168.163.xx:xx/nexus/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>nexus</id>
<url>http://192.168.163.xx:xx/nexus/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
<activeProfiles>
<activeProfile>nexus</activeProfile>
</activeProfiles>