Apache：
http://repo1.maven.org/maven2/
http://repo2.maven.org/maven2/
JBOSS：
http://repository.jboss.org/maven2/
http://repository.jboss.org/nexus/content/repositories/releases/
JBoss Public Maven Repository Group：
https://repository.jboss.org/nexus/content/groups/public-jboss/
SUN：
http://download.java.net/maven/1/
http://download.java.net/maven/2/
K-INT：
http://developer.k-int.com/maven2/
Sonatype Repository：
http://repository.sonatype.org/content/groups/public/
https://oss.sonatype.org/content/repositories/releases/
https://oss.sonatype.org/content/repositories/snapshots/