Cannot resolve plugin org.apache.maven.plugins:maven-war-plugin

网上清一片的说maven路径不一致 (改了后也无法解决) : 

 

解决办法: 添加镜像源 - 在配置的setting.xml加入:

 
    
            alimaven
            central
            aliyun maven
            http://maven.aliyun.com/nexus/content/repositories/central/
        
        
            alimaven
            aliyun maven
            http://maven.aliyun.com/nexus/content/groups/public/
            central
        
        
            central
            Maven Repository Switchboard
            http://repo1.maven.org/maven2/
            central
        
        
            repo2
            central
            Human Readable Name for this Mirror.
            http://repo2.maven.org/maven2/
        
        
            ibiblio
            central
            Human Readable Name for this Mirror.
            http://mirrors.ibiblio.org/pub/mirrors/maven2/
        
        
            jboss-public-repository-group
            central
            JBoss Public Repository Group
            http://repository.jboss.org/nexus/content/groups/public
        
        
            google-maven-central
            Google Maven Central
            https://maven-central.storage.googleapis.com
            
            central
        
        
        
            maven.net.cn
            oneof the central mirrors in china
            http://maven.net.cn/content/groups/public/
            central