分享一个MD5加密工具类

来自：http://blog.csdn.net/zranye/article/details/8234480

Es：http://blog.csdn.net/longxibendi/article/details/35237543

 

http://www.programcreek.com/java-api-examples/index.php?api=org.elasticsearch.action.admin.indices.create.CreateIndexResponse