换了个新的环境，重新导入的maven工程出现了2个BUG：
1、Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of内容很长，只截取了前面部分
2、Failure to transfer org.apache.maven.plugins:maven-surefire-plugin:pom:2.12.4 from http://maven.aliyun.com/nexus/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of nexus has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-surefire-plugin:pom:2.12.4 from/to nexus (http://maven.aliyun.com/nexus/content/groups/public): maven.aliyun.com。
3、The project cannot be built until build path errors are resolved
4、Could not calculate build plan: Failure to transfer org.apache.maven.plugins:maven-surefire-plugin:pom:2.7.1 from http://repo1.maven.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-surefire-plugin:pom:2.7.1 from/to central (http://repo1.maven.org/maven2): Access denied to http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-surefire-plugin/2.7.1/maven-surefire-plugin-2.7.1.pom. Error code 407, Proxy Authentication Required
解决方法如下：
1、
（1）将D:\Repositories\.m2\repository\org\apache\maven\plugins文件夹下的文件夹全部删除就可以了
（默认地址在C:\User\.m2\repository\org\apache\maven\plugins目录下的文件夹下）
（2）然后右击项目Maven->Update Project 或者Alt+F5
2、关于这个本人走了点弯路，以为是阿里云镜像配置有问题，换了几个版本结果都一样例如
1 <!-- 阿里云镜像 下载配置 --> 2 <mirror> 3 <id>alimaven</id> 4 <mirrorOf>central</mirrorOf> 5 <name>aliyun maven</name> 6 <url>http://maven.aliyun.com/nexus/content/groups/public/</url> 7 </mirror> 8 <!-- <mirror> 9 <id>nexus-aliyun</id> 10 <mirrorOf>central</mirrorOf> 11 <name>Nexus aliyun</name> 12 <url>http://maven.aliyun.com/nexus/content/groups/public</url> 13 </mirror> -->