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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # Keep Words Token Filter(保留字過濾器) 原文鏈接 : [https://www.elastic.co/guide/en/elasticsearch/reference/5.3/getting-started.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.3/getting-started.html) 譯文鏈接 : [http://www.apache.wiki/pages/viewpage.action?pageId=10028810](http://www.apache.wiki/pages/viewpage.action?pageId=10028810) 貢獻者 : [李亞運](/display/~liyayun),[ApacheCN](/display/~apachecn),[Apache中文網](/display/~apachechina) ## 簡述 `當詞元過濾器中的type為keep時,表示`只保留具有預定義單詞集中的文本的token。可以在設置中定義一組單詞,或者從包含每行一個單詞的文本文件加載。 ## 參數 | keep_words | 要保留的單詞列表 | | keep_words_path | 一個文字文件的路徑 | | keep_words_case | 一個布爾值,表示是否小寫單詞(默認為`false`?) | ## 示例 ``` PUT /keep_words_example { "settings" : { "analysis" : { "analyzer" : { "example_1" : { "tokenizer" : "standard", "filter" : ["standard", "lowercase", "words_till_three"] }, "example_2" : { "tokenizer" : "standard", "filter" : ["standard", "lowercase", "words_in_file"] } }, "filter" : { "words_till_three" : { "type" : "keep", "keep_words" : [ "one", "two", "three"] }, "words_in_file" : { "type" : "keep", "keep_words_path" : "analysis/example_word_list.txt" } } } } } ```
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