在maven文件夹下的setting.xml文件夹下查找标签，将下列代码添加进去

<mirror>
     <!--This sends everything else to /public -->
     <id>aliyun maven</id>
     <mirrorOf>central</mirrorOf>
     <name>aliyun maven</name>
     <url>http://maven.aliyun.com/nexus/content/groups/public</url>
</mirror>

并且在标签下添加如下代码控制maven对应的jdk版本，代码如下：

<profile>   
        <id>jdk-1.7</id>   
        <activation>   
            <activeByDefault>true</activeByDefault>   
            <jdk>1.7</jdk>   
        </activation>   
        <properties>   
            <maven.compiler.source>1.7</maven.compiler.source>   
            <maven.compiler.target>1.7</maven.compiler.target>   
            <maven.compiler.compilerVersion>1.7</maven.compiler.compilerVersion>   
        </properties>   
</profile>