Maven pom profile Online View:
https://mvnrepository.com/
Large data CDH each installation package components:
http://archive.cloudera.com/cdh5/cdh/5/
51CTO;
http://www.51cto.com/
Xiamen experimental data library _ woods rain Teacher:
http://dblab.xmu.edu.cn/
Rookie Tutorial:
https://www.runoob.com/