Elasticsearch IK 同义词

同义词配置

step 1

elasticserach.yml 最后一行添加：
index.analysis.analyzer.default.type: ik

step 2

在elasticsearch-2.3.1/config目录下面，存放synonyms.txt

其中，synonyms.txt 编码格式为’utf-8’，内容为：

    #Example:
    ipod, i-pod, i pod
    foozball , foosball
    universe , cosmos
    西红柿, 番茄
    马铃薯, 土豆
    aa, bb

step 3

新建立索引类型设置

curl -XPUT localhost:9200/test/_mapping?pretty -d '
{
  "settings": {
    "index": {
      "analysis": {
        "analyzer": {
          "jt_cn": {
            "type": "custom",
            "use_smart": "true",
            "tokenizer": "ik_smart",
            "filter": ["jt_tfr","jt_sfr"],
            "char_filter": ["jt_cfr"]
          },
          "ik_smart": {
            "type": "ik",
            "use_smart": "true"
          },
          "ik_max_word": {
            "type": "ik",
            "use_smart": "false"
          }
        },
        "filter": {
          "jt_tfr": {
            "type": "stop",
            "stopwords": [" "]
          },
          "jt_sfr": {
            "type": "synonym",
            "synonyms_path": "synonyms.txt"
          }
        },
        "char_filter": {
            "jt_cfr": {
                "type": "mapping",
                "mappings": [
                    "| => \\|"
                ]
            }
        }
      }
    }
  },
  "mappings": {
    "solution": {
      "properties": {
        "title": {
          "include_in_all": true,
          "analyzer": "jt_cn",
          "term_vector": "with_positions_offsets",
          "boost": 8,
          "store": true,
          "type": "string"
        }
      }
    }
  }
}
'

step 4

curl -XPUT localhost:9200/test/solution/1 -d ' { "title": "番茄" } '
curl -XPUT localhost:9200/test/solution/2 -d ' { "title": "西红柿" } '

step 5

  curl -XPOST 'localhost:9200/test/solution/_search?pretty' -d ' { "query": { "query_string": { "title": { "query": "西红柿", "analyzer": "jt_cn" } } }, "highlight": { "pre_tags": [ "<tag1>", "<tag2>" ], "post_tags": [ "</tag1>", "</tag2>" ], "fields": { "title": {} } } } '

step 6

   {
     "took": 3,
     "timed_out": false,
     "_shards": { "total": 5, "successful": 5, "failed": 0 },
     "hits": { "total": 2, "max_score": 0.4500804, "hits": [ { "_index": "test", "_type": "solution", "_id": "1", "_score": 0.4500804, "_source": { "title": "西红柿" } }, { "_index": "test", "_type": "solution", "_id": "2", "_score": 0.36006433, "_source": { "title": "番茄" } } ] } }

动态更新同义词文件

动态更新方法