# Token數 原文鏈接 : [https://www.elastic.co/guide/en/elasticsearch/reference/current/token-count.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/token-count.html) 譯文鏈接 :[http://www.apache.wiki/pages/viewpage.action?pageId=10030674](http://www.apache.wiki/pages/viewpage.action?pageId=10030674) 貢獻者 : [李亞運](/display/~liyayun)，[ApacheCN](/display/~apachecn)，[Apache中文網](/display/~apachechina) ## 簡述 類型為`token_count`的字段是一個接受字符串值的[`integer`](https://www.elastic.co/guide/en/elasticsearch/reference/current/number.html)字段，對它們進行分析，然后對字符串中的token數進行索引。 ## 示例 例如： ``` PUT my_index { "mappings": { "my_type": { "properties": { "name": { "type": "text", "fields": { "length": { "type": "token_count", "analyzer": "standard" } } } } } } } PUT my_index/my_type/1 { "name": "John Smith" } PUT my_index/my_type/2 { "name": "Rachel Alice Williams" } GET my_index/_search { "query": { "term": { "name.length": 3 } } } ``` | [](https://translate.googleusercontent.com/translate_c?depth=1&hl=zh-CN&rurl=translate.google.com&sl=en&sp=nmt4&tl=zh-CN&u=https://www.elastic.co/guide/en/elasticsearch/reference/current/token-count.html&usg=ALkJrhj-xw1n9gZS9tQ_tK5CUYOeTr55wA#CO186-1) | `name`字段是使用默認`standard`分析器的分析字符串字段。 | | [](https://translate.googleusercontent.com/translate_c?depth=1&hl=zh-CN&rurl=translate.google.com&sl=en&sp=nmt4&tl=zh-CN&u=https://www.elastic.co/guide/en/elasticsearch/reference/current/token-count.html&usg=ALkJrhj-xw1n9gZS9tQ_tK5CUYOeTr55wA#CO186-2) | `name.length`字段是一個`token_count`?[多字段](https://www.elastic.co/guide/en/elasticsearch/reference/current/multi-fields.html)?，它將在`name`字段中索引token的數量。 | | [](https://translate.googleusercontent.com/translate_c?depth=1&hl=zh-CN&rurl=translate.google.com&sl=en&sp=nmt4&tl=zh-CN&u=https://www.elastic.co/guide/en/elasticsearch/reference/current/token-count.html&usg=ALkJrhj-xw1n9gZS9tQ_tK5CUYOeTr55wA#CO186-3) | 此查詢僅匹配包含`Rachel Alice Williams`的文檔，因為它包含三個token。 |  在技術上，?`token_count`類型對位置增量進行求和，而不是對token計數。?這意味著即使分析儀濾除停止詞，它們也包括在計數中。 ## 參數 `token_count`字段接受以下參數： | [`analyzer`](https://www.elastic.co/guide/en/elasticsearch/reference/current/analyzer.html) | 應該用于分析字符串值的[分析器](https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis.html)?。必須值。?為獲得最佳性能，請使用不帶token過濾器的分析器。 | | [`boost`](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-boost.html) | 映射字段級查詢時間提升。?接受一個浮點數，默認為`1.0`?。 | | [`doc_values`](https://www.elastic.co/guide/en/elasticsearch/reference/current/doc-values.html) | 該字段是否應該以多列的方式存儲在磁盤上，以便以后可以將其用于排序，聚合或腳本化？接受`true`?（默認）或`false`?。 | | [`index`](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-index.html) | 應該可以搜索該字段嗎？?接受`not_analyzed`?（默認）和`no`?。 | | [`include_in_all`](https://www.elastic.co/guide/en/elasticsearch/reference/current/include-in-all.html) | 字段值是否應包含在[`_all`](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-all-field.html)字段中？?接受`true`或`false`?默認為`false`?。?注意：如果為`true`?，則將字符串值添加到_all，而不是計算的token數量。 | | [`null_value`](https://www.elastic.co/guide/en/elasticsearch/reference/current/null-value.html) | 接受與替換任何顯式`null`值的字段相同`type`的數值。?默認為`null`?，這意味著該字段被視為丟失。 | | [`store`](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-store.html) | 字段值是否應與[`_source`](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html)字段分開存儲和檢索。?接受`true`或`false`?（默認）。 |