eclipse中配置maven

<?xml version="1.0"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
    <!--本地镜像库，根据自己需要设置-->
 　　<localRepository>C:\Users\.m2\repository</localRepository>
　　 <mirrors>
        <mirror>
            <id>Nexus</id>
            <name>Nexus Public Mirror</name>
            <url>http://121.42.166.202:8081/nexus/content/groups/public</url>
            <mirrorOf>central</mirrorOf>
        </mirror>
    </mirrors>
 
    <profiles>
        <profile>
            <id>dev</id>
            <repositories>
                <repository>
                    <id>Nexus</id>
                    <url>http://121.42.166.202:8081/nexus/content/groups/public</url>
                    <releases>
                        <enabled>true</enabled>
                        <updatePolicy>always</updatePolicy>
                        <checksumPolicy>warn</checksumPolicy>
                    </releases>
                    <snapshots>
                        <enabled>true</enabled>
                        <updatePolicy>never</updatePolicy>
                        <checksumPolicy>fail</checksumPolicy>
                    </snapshots>
                </repository>
            </repositories>
            <pluginRepositories>
                <pluginRepository>
                    <id>Nexus</id>
                    <url>http://121.42.166.202:8081/nexus/content/groups/public</url>
                    <releases>
                        <enabled>true</enabled>
                        <checksumPolicy>warn</checksumPolicy>
                    </releases>
                    <snapshots>
                        <enabled>true</enabled>
                        <checksumPolicy>fail</checksumPolicy>
                    </snapshots>
                </pluginRepository>
            </pluginRepositories>
            <!-- <properties> <environment.type>prod</environment.type> </properties> -->
        </profile>
    </profiles>
    <activeProfiles>
        <activeProfile>dev</activeProfile>
    </activeProfiles>
</settings>