pom文件提示信息：
Failure to transfer org.apache.maven.plugins:maven-resources-plugin:pom:2.4.3 from /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-resources-
plugin:pom:2.4.3 from/to central (/maven2): No response received after 60000
原因和解决方案：
因为本地maven仓库缺少maven-resources-plugin-2.4.3.jar和相关jar文件。打开\.m2\repository\org\apache\maven\plugins\maven-resources-plugin\2.4.3目录，如果没有jar包，则需要在pom中添加：
<dependency><groupId>org.apache.maven.plugins</groupId><artifactId>maven-resources-plugin</artifactId><version>2.4.3</version></dependency>
然后执行 mvn install，会自动下载相关jar包，出现BUILD SUCCESS之后，项目右键 update dependencies，然后发现恢复正常。
