前提，是
Elasticsearch之curl创建索引库
[hadoop@djt002 elasticsearch-2.4.3]$ curl -XPUT 'http://192.168.80.200:9200/zhouls/emp/1' -d'{"name":"tom","age":25}'
{"_index":"zhouls","_type":"emp","_id":"1","_version":1,"_shards":{"total":2,"successful":1,"failed":0},"created":true}[hadoop@djt002 elasticsearch-2.4.3]$
即，"_index":"zhouls",是索引库是zhouls
"_type":"emp",是类型是emp
"_id":"1"，是id是1
"_version":1，是版本是1
"_shards":{"total":2,"successful":1,"failed":0}，是
"created":true，是创建索引提示成功！
这是REST风格！
含义：
zhouls，代表是索引库
emp代表类型，员工的意思
1代表id，
官网
https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html
