maven jar没法下载解决方案

1.下载不了多是网络缘由.建议添加稳定的仓库如阿里巴巴,在maven添加镜像地址，编辑maven根目录中conf文件夹下settings.xml

<mirrors>
	 <mirror>  
           <id>ibiblio.org</id>  
           <name>ibiblio Mirror of http://repo1.maven.org/maven2/</name>  
           <url>http://mirrors.ibiblio.org/pub/mirrors/maven2</url>  
           <mirrorOf>central</mirrorOf>  
           <!-- United States, North Carolina -->  
     </mirror>  
     <mirror>  
         <id>jboss-public-repository-group</id>  
         <mirrorOf>central</mirrorOf>  
         <name>JBoss Public Repository Group</name>  
         <url>http://repository.jboss.org/nexus/content/groups/public</url>  
     </mirror>
  </mirrors>