<!-- 国内远程仓库：阿里云镜像 -->

        <mirror>

            <id>alimaven</id>

            <name>aliyun maven</name>

            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>

            <mirrorOf>central</mirrorOf>

        </mirror>

    <!-- 修改JDK版本 -->

        <profile>

            <id>jdk-1.8</id>

             <activation>

                  <activeByDefault>true</activeByDefault>

                  <jdk>1.8</jdk>

              </activation>

        <properties>

        <maven.compiler.source>1.8</maven.compiler.source>

        <maven.compiler.target>1.8</maven.compiler.target>

        <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>

        </properties>

        </profile>