title: Could not transfer artifact org.springframework.boot and transfer failed
body: <p>I'm new to maven and when I begin a spring-boot project, i face a lot of problems as below:</p>
  
  <pre><code>Could not transfer artifact org.springframework.boot:spring-boot-starter-data-jpa:pom:2.2.3.RELEASE from/to alimaven (https://maven.aliyun.com/repository/public): Transfer failed for https://maven.aliyun.com/repository/public/org/springframework/boot/spring-boot-starter-data-jpa/2.2.3.RELEASE/spring-boot-starter-data-jpa-2.2.3.RELEASE.pom
  
  </code></pre>
  
  <p>also, when i use other depedency, the maven cannot download it from my mirror, and my settings is as below</p>
  
  <pre><code>&lt;mirrors&gt;
      &lt;mirror&gt;
          &lt;id&gt;alimaven&lt;/id&gt;
          &lt;name&gt;aliyun maven&lt;/name&gt;
          &lt;url&gt;http://maven.aliyun.com/nexus/content/groups/public/&lt;/url&gt;
          &lt;!--&lt;mirrorOf&gt;central&lt;/mirrorOf&gt; --&gt;
          &lt;mirrorOf&gt;*&lt;/mirrorOf&gt;
      &lt;/mirror&gt;
    &lt;/mirrors&gt;
  </code></pre>
  
  <p>why cant my maven download any jar from the repo?</p>