集成

1. 下载安装插件https://github.com/medcl/elasticsearch-analysis-ik/tree/6.x
2. 下载后mvn打包，结果再realease中
3. 将包放入elasticsearch的plungin中，并且解压
4. 指定分词器
   1. ik_max_word
   2. ik_smart

同义词

1. 更改配置文件

   { 
   	"max_result_window" : 100000000,
   	"number_of_shards":10,
   	"analysis": {
   		"filter": {
   			"my_synonym_filter": {
   				"type": "synonym",
   				"synonyms_path": "analysis/synonyms.txt"
   			}
   		},
   	"analyzer": {
   		"ik_syno": {
   			"type": "custom",
   			"tokenizer": "ik_smart",
   			"filter": [
   				"my_synonym_filter"
   			]
   		},
   		"ik_syno_max": {
   			"type": "custom",
   			"tokenizer": "ik_max_word",
   			"filter": [
   				"my_synonym_filter"
   			]
   		}
   	}
   }
   }