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index如下： <div class="snippet-clipboard-content notranslate position-relative overf

Completion Suggest如何实现汉字、拼音、简拼搜索？ about elasticsearch-analysis-pinyin HOT 5 CLOSED

medcl commented on July 30, 2024

Completion Suggest如何实现汉字、拼音、简拼搜索？

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Comments (5)

occultskyrong commented on July 30, 2024 1

index如下：


{
    "index": {
        "analysis": {
            "analyzer": {
                "prefix_pinyin_analyzer": {
                    "tokenizer": "keyword",
                    "filter": ["lowercase", "prefix_pinyin"]
                }
                , "full_pinyin_analyzer": {
                    "tokenizer": "keyword",
                    "filter": ["lowercase", "full_pinyin"]
                }
            },
            "tokenizer": {
                "prefix_pinyin": {
                    "type": "pinyin",
                    "first_letter": "prefix",
                    "padding_char": ""
                }
            },
            "filter": {
                "_pattern": {
                    "type": "pattern_capture",
                    "preserve_original": 1,
                    "patterns": ["([0-9])", "([a-z])"]
                }
                , "prefix_pinyin": {
                    "type": "pinyin",
                    "first_letter": "prefix",
                    "padding_char": ""
                }
                , "full_pinyin": {
                    "type": "pinyin",
                    "first_letter": "none",
                    "padding_char": ""
                }
            }
        }
    }
}

mapping设置：

          "name_prefix_pinyin": {
                "type": "completion",
                "analyzer": "prefix_pinyin_analyzer",
                "search_analyzer": "prefix_pinyin_analyzer",
                "preserve_separators": false,
                "payloads": true
            },
            "name_full_pinyin": {
                "type": "completion",
                "analyzer": "full_pinyin_analyzer",
                "search_analyzer": "full_pinyin_analyzer",
                "preserve_separators": false,
                "payloads": true
            },

然后用suggester去搜对应内容，此部分涉及到业务，可能不同

, body: {
            goods_prefix_suggest: {
                text: '',#搜索的key
                completion: {
                       field:"name_prefix_pinyin" #搜索的字段
                       ,size:10 #搜索的长度
                }
            }
            , goods_full_suggest: {
                text: '',#搜索的key
                completion: {..} #同上 
            }
        }
``

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brucebao commented on July 30, 2024

目前Completion Suggest不支持（要命的前缀查询）,用query解决吧

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windcandle commented on July 30, 2024

非常感谢！我试试！！

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occultskyrong commented on July 30, 2024

1、这是es2.3.4下。
2、因为我是nodejs，所以用的是Elasticsearch.js中的suggest()方法，你根据你自己后端语言自己看下
https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/api-reference.html#api-suggest
3、使用这个completion suggester可以和context suggester结合使用来进行类似于query的match、term等过滤。
但是有个bug。。。。Deleted documents show up in completion suggester
我还没找到解决方法。。。。
当然，如果你的doc不需要update或者delete的话没啥问题。。。了吧。。

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medcl commented on July 30, 2024

请参见最新的README文档，使用起来更加简单

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