直接更改maven的settings设置jdk版本

profiles标签里面增加如下 

<profiles>
  
		<profile>
			<id>jdk8</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>

 <profile>  
            <id>custom-compiler</id>  
            <properties>  
                <JAVA8_HOME>C:\Program Files\Java\jdk1.8.0_65\bin</JAVA8_HOME>  
            </properties>  
</profile>  


  </profiles>

activeProfiles标签增加如下 

<activeProfiles>
    <activeProfile>custom-compiler</activeProfile>  
   <!-- <activeProfile>alwaysActiveProfile</activeProfile>
    <activeProfile>anotherAlwaysActiveProfile</activeProfile>-->
  </activeProfiles>

 =====================================

下面是常见配置

镜像

<mirror>
                <id>central-aliyun</id>
                <mirrorOf>*</mirrorOf> 
                <name>aliyun-mirror</name> 
		  <!--< <url>http://192.168.1.146:8081/nexus/content/groups/public/</url>--> 
              <url>http://maven.aliyun.com/nexus/content/groups/public</url> 
      </mirror>

然后修改本地仓库即可localRepository标签