elasticsearch实现搜索拼音然后高亮内容

es拼音插件https://github.com/medcl/elasticsearch-analysis-pinyin/tree/v1.6.0，具体用法此处不介绍，看readme

现在要实现一个搜场馆的功能，需要按场馆名称首字母缩写也能搜索出场馆，还必须要高亮显示首拼对应的汉字部分。

analysis可定义如下：

    "analysis": {"tokenizer": {"my_pinyin" : {"type" : "pinyin","first_letter" : "only"}},"filter": {"pinyin_filter" : {"type" : "pinyin","first_letter" : "only","padding_char" : ""}},"analyzer": {"pinyin_analyzer" : {"tokenizer" : "ansj_query_token","filter" : "pinyin_filter"},"pinyin_all_analyzer" : {"tokenizer" : "my_pinyin","filter" : "word_delimiter"},"index_ansj": {"type": "custom","tokenizer": "ansj_index_token"},"query_ansj": {"type": "custom","tokenizer": "ansj_query_token"}}}

分词部分使用的是ansj分词。

场馆mapping如下：

{"properties": {"name": {"type": "string","term_vector" : "with_positions_offsets","index_analyzer": "index_ansj","search_analyzer": "query_ansj","fields": {"pinyin": {"type": "string","index_analyzer": "pinyin_analyzer","search_analyzer": "query_ansj"}}},"address": {"type": "string","term_vector" : "with_positions_offsets","index_analyzer": "index_ansj","search_analyzer": "query_ansj"},"createTime" : {"type": "date","format": "yyy-MM-dd HH:mm:ss"}}
}

name字段采用的multi_fields字段，创建name索引的同时也会创建name.pinyin索引。

搜索query可以这么写：

{"_source": ["createTime"], "query": {"multi_match": {"type": "most_fields","query": "cs","fields": ["name", "name.pinyin","address"],"minimum_should_match": "-20%"}},"sort": [{"createTime":{"order":"desc"}}],"highlight": {"boundary_chars":".,!? \t\n，。！？","pre_tags" : ["<font color='red'>"],"post_tags" : ["</font>"],"fields": {"name" : {"number_of_fragments" : 0},"name.pinyin" : {"number_of_fragments" : 0},"address" : {"number_of_fragments" : 0}}}
}

比如有一个场馆名字叫测试场馆，那么你输入“cs”搜索的时候也能搜索到该场馆。并且能将场馆名高亮显示，区别就是输入的是首拼的话，高亮值在name.pinyin上，如果输入的是汉字的话，高亮值在name上，name和name.pinyin高亮输出的内容是一样的。

{"took": 5,"timed_out": false,"_shards": {"total": 1,"successful": 1,"failed": 0},"hits": {"total": 3,"max_score": null,"hits": [{"_index": "huiti_app_v1","_type": "stadium","_id": "id1","_score": null,"_source": {"createTime": "2015-01-01 00:00:00"},"highlight": {"name.pinyin": ["<font color='red'>测试</font>场馆1"]},"sort": [1420070400000]},{"_index": "huiti_app_v1","_type": "stadium","_id": "id2","_score": null,"_source": {"createTime": "2015-01-01 00:00:00"},"highlight": {"name.pinyin": ["<font color='red'>测试</font>场馆2"]},"sort": [1420070400000]},{"_index": "huiti_app_v1","_type": "stadium","_id": "id3","_score": null,"_source": {"createTime": "2015-01-01 00:00:00"},"highlight": {"name.pinyin": ["<font color='red'>测试</font>场馆3"]},"sort": [1420070400000]}]}
}

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