es批量操作

POST /library/books/_bulk
{"delete":{"_index":"library","_type":"books","_id":"10"}}
{"create":{"_index":"music","_type":"classic","_id":"1"}}
{"title":"bule music"}
{"index":{"_index":"music","_type":"classic"}}
{"title":"auto generate id"}
{"update":{"_index":"library","_type":"books","_id":"13"}
{ "doc" : {"price":"111"} }