http://192.168.32.81:9200/library/books/8/ GET { "_index": "library", "_type": "books", "_id": "8", "_version": 1, "found": true, "_source": { "titile": "Elasticsearch: The Defintive Guide", "name": { "first": "Zachary", "last": "Tong" }, "publish_date": "2016-07-29", "price": "90.01" } } 此时版本为 "_version": 1, http://192.168.32.81:9200/library/books/8/ _update POST { "doc":{ "price":"11.13"} } { "_index": "library", "_type": "books", "_id": "8", "_version": 2, "found": true, "_source": { "titile": "Elasticsearch: The Defintive Guide", "name": { "first": "Zachary", "last": "Tong" }, "publish_date": "2016-07-29", "price": "11.13" } } 此时版本变为2