maven pom中 设置远程仓库url

<repositories>
        

<repository>
    <id>central</id>
    <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
    <name>aliyun</name>
</repository>

        <repository>
            <id>springsource-repos</id>
            <name>SpringSource Repository</name>
            <url>http://repo.spring.io/release/</url>
        </repository>
        <repository>
            <id>central-repos</id>
            <name>Central Repository</name>
            <url>http://repo.maven.apache.org/maven2</url>
        </repository>
        <repository>
            <id>central-repos2</id>
            <name>Central Repository 2</name>
            <url>http://repo1.maven.org/maven2/</url>
        </repository>
    </repositories>

<pluginRepositories>
    <pluginRepository>
        <id>central</id>
        <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
        <name>aliyun</name>
    </pluginRepository>
</pluginRepositories>