1.修改maven根目录下的conf文件夹中的setting.xml文件
<mirrors><mirror><id>alimaven</id><name>aliyun maven</name><url>/nexus/content/groups/public/</url><mirrorOf>central</mirrorOf> </mirror></mirrors>
2.pom.xml文件里添加
<repositories><!-- 代码库 --><repository><id>maven-ali</id><url>/nexus/content/groups/public//</url><releases><enabled>true</enabled></releases><snapshots><enabled>true</enabled><updatePolicy>always</updatePolicy><checksumPolicy>fail</checksumPolicy></snapshots></repository></repositories>