自定义分词器

系统管理员 2023-06-20 10:53 4阅读 0赞

自定义分析器地址：https://www.elastic.co/guide/cn/elasticsearch/guide/cn/custom-analyzers.html

PUT /my\_index  
\{  
    "settings": \{  
        "analysis": \{  
            "char\_filter": \{ ... custom character filters ... \},//字符过滤器  
            "tokenizer": \{ ... custom tokenizers ... \},//分词器  
            "filter": \{ ... custom token filters ... \}, //词单元过滤器  
            "analyzer": \{ ... custom analyzers ... \}  
        \}  
    \}  
\}  
============================实例===========================  
PUT /my\_index  
\{  
    "settings": \{  
        "analysis": \{  
            "char\_filter": \{  
                "&\_to\_and": \{  
                    "type": "mapping",  
                    "mappings": \[ "&=> and "\]  
            \}\},  
            "filter": \{  
                "my\_stopwords": \{  
                    "type": "stop",  
                    "stopwords": \[ "the", "a" \]  
            \}\},  
            "analyzer": \{  
                "my\_analyzer": \{  
                    "type": "custom",  
                    "char\_filter": \[ "html\_strip", "&\_to\_and" \],  
                    "tokenizer": "standard",  
                    "filter": \[ "lowercase", "my\_stopwords" \]  
            \}\}  
\}\}\}  
  
  
============================实例===========================  
比如自定义好的analyzer名字是my\_analyzer,在此索引下的某个新增字段应用此分析器  
PUT /my\_index/\_mapping  
\{  
   "properties":\{  
        "username":\{  
             "type":"text",  
              "analyzer" : "my\_analyzer"  
         \},  
        "password" : \{  
          "type" : "text"  
        \}  
      
  \}  
\}  
=================插入数据====================  
PUT /my\_index/\_doc/1  
\{  
  "username":"The quick & brown fox ",  
   "password":"The quick & brown fox "  
  
  
\}  
====username采用自定义分析器my\_analyzer,password采用默认的standard分析器==  
===验证  
GET /index\_v1/\_analyze  
\{  
  "field":"username",  
  "text":"The quick & brown fox"  
\}  
  
GET /index\_v1/\_analyze  
\{  
  "field":"password",  
  "text":"The quick & brown fox"  
\}