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                ES的默認分詞設置是standard,這個在中文分詞時就比較尷尬了,會單字拆分,比如我搜索關鍵詞“清華大學”,這時候會按“清”,“華”,“大”,“學”去分詞,然后搜出來的都是些“清清的河水”,“中華兒女”,“地大物博”,“學而不思則罔”之類的莫名其妙的結果,這里我們就想把這個分詞方式修改一下,于是呢,就想到了ik分詞器,有兩種ik_smart和ik_max_word。 ik_smart會將“清華大學”整個分為一個詞,而ik_max_word會將“清華大學”分為“清華大學”,“清華”和“大學”,按需選其中之一就可以了。 修改默認分詞方法(這里修改school_index索引的默認分詞為:ik_max_word): ``` PUT /school_index { "settings" : { "index" : { "analysis.analyzer.default.type": "ik_max_word" } } } ``` IK分詞配置添加后,再加入以下配置即可: 進去es的config目錄,編輯`elasticsearch.yml`,在空白地方加上 ``` index.analysis.analyzer.default.type: ik ```
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