Maven使用自身tomcat出现的问题

Cannot resolve plugin org.apache.maven.plugins:maven-clean-plugin:2.5

解决

 <mirror>
<id>aliyun-public</id>
<mirrorOf>*</mirrorOf>
<name>aliyun public</name>
<url>https://maven.aliyun.com/repository/public</url>
</mirror>

<mirror>
<id>aliyun-central</id>
<mirrorOf>*</mirrorOf>
<name>aliyun central</name>
<url>https://maven.aliyun.com/repository/central</url>
</mirror>

<mirror>
<id>aliyun-spring</id>
<mirrorOf>*</mirrorOf>
<name>aliyun spring</name>
<url>https://maven.aliyun.com/repository/spring</url>
</mirror>

<mirror>
<id>aliyun-spring-plugin</id>
<mirrorOf>*</mirrorOf>
<name>aliyun spring-plugin</name>
<url>https://maven.aliyun.com/repository/spring-plugin</url>
</mirror>