1. Set up a local warehouse location
<localRepository>E:\JavaSoft\mavenRepository</localRepository>
2. Ali mirror
<mirror> <id>alimaven</id> <mirrorOf>central</mirrorOf> <name>aliyun maven</name> <url>http://maven.aliyun.com/nexus/content/groups/public/</url> </mirror> </mirrors>
3. Indicate whether or not the current uncertainty with this jdk