Could not transfer metadata org.apache.maven.plugins:maven-archetype-plugin/maven-metadata.xml from/

控制输出台

“C:\Program Files (x86)\Java\jdk1.8.0_144\bin\java.exe” -Dmaven.multiModuleProjectDirectory=C:\Users\Administrator\AppData\Local\Temp\archetypetmp “-Dmaven.home=D:\software\idea\IntelliJ IDEA 2018.1.5\plugins\maven\lib\maven3” “-Dclassworlds.conf=D:\software\idea\IntelliJ IDEA 2018.1.5\plugins\maven\lib\maven3\bin\m2.conf” -Dfile.encoding=UTF-8 -classpath “D:\software\idea\IntelliJ IDEA 2018.1.5\plugins\maven\lib\maven3\boot\plexus-classworlds-2.5.2.jar” org.codehaus.classworlds.Launcher -Didea.version=2018.1.5 -DinteractiveMode=false -DgroupId=wechat -DartifactId=wechat.cn -Dversion=1.0-SNAPSHOT -DarchetypeGroupId=org.apache.maven.archetypes -DarchetypeArtifactId=maven-archetype-webapp -DarchetypeVersion=RELEASE org.apache.maven.plugins:maven-archetype-plugin:RELEASE:generate
[INFO] Scanning for projects…
Downloading: http://10.1.89.21:8081/nexus/content/groups/public/org/apache/maven/plugins/maven-archetype-plugin/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.plugins:maven-archetype-plugin/maven-metadata.xml from/to alimaven (http://10.1.89.21:8081/nexus/content/groups/public/): Connect to 10.1.89.21:8081 [/10.1.89.21] failed: Connection timed out: connect
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 27.672 s
[INFO] Finished at: 2019-04-12T14:09:32+08:00
[INFO] Final Memory: 6M/15M
[INFO] ------------------------------------------------------------------------
[ERROR] Plugin org.apache.maven.plugins:maven-archetype-plugin:RELEASE or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-archetype-plugin:jar:RELEASE: Failed to resolve version for org.apache.maven.plugins:maven-archetype-plugin:jar:RELEASE: Could not find metadata org.apache.maven.plugins:maven-archetype-plugin/maven-metadata.xml in local (D:\software\maven\maven-repository) -> [Help 1]

问题产生原因

报错信息中有这句话: Connection to http://repo.maven.apache.org refused.说明电脑访问不了maven repository

解决方法

maven默认仓库在国外,下载速度慢,所以需要在setting.xml文件中配置镜像.这里用的是阿里云镜像
步骤: 找到maven使用的setting文件 — 找到< mirrors> < /mirrors>选项,在里面添加以下代码

  alimaven
  aliyun maven
  http://maven.aliyun.com/nexus/content/groups/public/
  central