1、預設的分詞器

standard

其餘：
standard tokenizer：以單詞邊界進行切分
standard token filter：什麼都不做
lowercase token filter：將所有字母轉換為小寫
stop token filer（預設被禁用）：移除停用詞，比如a the it等等

2、基於英語的過濾器

修改分詞器的設定
啟用english停用詞token filter

PUT /my_index
{
  "settings": {
    "analysis": {
      "analyzer": {
        "es_std": {
          "type": "standard",
          "stopwords": "_english_"
        }
      }
    }
  }
}
 

3、定製化自己的分詞器

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"]
        }
      }
    }
  }
}
 

4、如果要在自己的某個type用到定製的分詞器

PUT /my_index/_mapping/my_type
{
  "properties": {
    "content": {
      "type": "text",
      "analyzer": "my_analyzer"
    }
  }
}