官网地址备份
软件官网:
eclipse官网: http://www.eclipse.org/
Linux镜像更新地址: http://www.linuxidc.com/Linux/2007-09/7399.htm
scala官网: http://www.scala-lang.org/
W3C School : http://www.w3school.com.cn/
Tomcat官网:http://tomcat.apache.org/
Cloudera文档地址:https://www.cloudera.com/documentation/enterprise/latest/topics/introduction.html