[maven] 仓库

<repositories>
   <repository>
        <id>maven</id>
     <name>Maven Repository Switchboard</name>
      <layout>default</layout>
       <url>http://repo1.maven.org/maven2</url>
       <snapshots>
         <enabled>false</enabled>
       </snapshots>
    </repository>
   <repository>
        <id>alibaba-opensource</id>
        <name>alibaba-opensource</name>
        <url>http://code.alibabatech.com/mvn/releases/</url>
       <layout>default</layout>
   </repository>
   <repository>
        <id>alibaba-opensource-snapshot</id>
       <name>alibaba-opensource-snapshot</name>
       <url>http://code.alibabatech.com/mvn/snapshots/</url>
      <layout>default</layout>
   </repository>
</repositories>