http://mvnrepository.com/
http://search.maven.org/
http://repository.sonatype.org/content/groups/public/
http://people.apache.org/repo/m2-snapshot-repository/
http://people.apache.org/repo/m2-incubating-repository/
MAVEN 常用仓库地址
原文：http://www.cnblogs.com/johnfung/p/3537703.html
