1、maven包查询：
http://mvnrepository.com/
2、maven公共仓库 ：
http://mirrors.ibiblio.org/pub/mirrors/maven2/
http://gradle.artifactoryonline.com/gradle/libs
http://gradle.artifactoryonline.com/gradle/plugins
http://google-maven-repository.googlecode.com/svn/repository
http://maven.springframework.org/release
http://maven.springframework.org/milestone
http://repository.codehaus.org
http://repository.jboss.org/nexus/content/groups/public-jboss
http://repo.jfrog.org/artifactory/plugins-releases-local
http://repo.jfrog.org/artifactory/libs-releases-local
http://download.java.net/maven/1
http://download.java.net/maven/2
http://repo1.maven.org/maven2
http://www.intalio.org/public/maven2/
http://www.jarvana.com/jarvana/browse/
http://maven.alfresco.com/nexus/content/groups/public