IDEA创建maven项目插件下载不下来 报错:Cannot resolve plugin

大多数都是网络问题，那就多配置点镜像试一试喽！
打开你的settings.xml文件，然后找到 mirrors

 <mirrors>
 
 mirrors>

1，将下面的代码复制粘贴进去！
2，保存settings.xml文件
3，进入IDEA再次刷新maven
如果继续报错：Cannot resolve plugin org.apache.maven.plugins:maven-shade-plugin:XXX，则进入对应的本地仓库目录下，删掉之前相应包的缓存。重新刷新maven。

	<mirror>
    	<id>alimavenid>
    	<name>aliyun mavenname>
    	<url>http://maven.aliyun.com/nexus/content/groups/public/url>
    	<mirrorOf>centralmirrorOf>
	mirror>
	 
	 <mirror>
    	<id>huaweicloudid>
		<name>mirror from maven huaweicloudname>
	    <url>https://mirror.huaweicloud.com/repository/maven/url>
	    <mirrorOf>centralmirrorOf>
	mirror>
	
	<mirror>
	    <id>ibiblioid>
	    <name>Mirror from Maven ibiblioname>
	    <url>http://mirrors.ibiblio.org/pub/mirrors/maven2/url>
	    <mirrorOf>centralmirrorOf>
	mirror>
	
	<mirror>
    	<id>centralid>
    	<name>Maven Repository Switchboardname>
    	<url>https://repo1.maven.org/maven2/url>
    	<mirrorOf>centralmirrorOf>
	mirror>
	
	<mirror>
	    <id>centralid>
	    <name>Maven Repository Switchboardname>
	    <url>https://repo1.maven.apache.org/maven2/url>
	    <mirrorOf>centralmirrorOf>
	mirror>
	
	<mirror>
		<id>sprintioid>
		<mirrorOf>centralmirrorOf>
		<name>Human Readable Name for this Mirror.name>
		<url>https://repo.spring.io/libs-snapshot/url>
	mirror>
	
	<mirror>
   		<id>uiid>
    	<name>Mirror from UKname>
    	<url>http://uk.maven.org/maven2/url>
    	<mirrorOf>centralmirrorOf>
	mirror>
	
	<mirror>
		<id>jboss-public-repository-groupid>
		<name>JBoss Public Repository Groupname>
		<url>http://repository.jboss.org/nexus/content/groups/publicurl>
		<mirrorOf>centralmirrorOf>
	mirror>
	
	<mirror>
		<id>googleid>
		<name>google mavenname>
		<url>https://maven.google.com/url>
		<mirrorOf>centralmirrorOf>
	mirror>
	
	<mirror>
		<id>maven.net.cnid>
		<name>Mirror from Maven in chinaname>
		<url>http://maven.net.cn/content/groups/public/url>
		<mirrorOf>centralmirrorOf>
	mirror>
	
	<mirror>
   		<id>CNid>
    	<name>OSChinaCentralname>
    	<url>http://maven.oschina.net/content/groups/public/url>
    	<mirrorOf>centralmirrorOf>
	mirror>

完美撒花！