如果查询是 Brid我想要<em>Brid</em>gitte在突出显示的字段中，而不是整个单词 <em>Bridgitte</em>
我的索引如下所示(我已按照此处建议的方式添加了 ngram 分析器 Highlighting part of word in elasticsearch )
{
"myindex": {
"aliases": {},
"mappings": {
"mytype": {
"properties": {
"myarrayproperty": {
"properties": {
"mystringproperty1": {
"type": "string",
"term_vector": "with_positions_offsets",
"analyzer": "index_ngram_analyzer",
"search_analyzer": "search_term_analyzer"
},
"mystringproperty2": {
"type": "string",
"term_vector": "with_positions_offsets",
"analyzer": "index_ngram_analyzer",
"search_analyzer": "search_term_analyzer"
}
},
"mylongproperty": {
"type": "long"
},
"mydateproperty": {
"type": "date",
"format": "strict_date_optional_time||epoch_millis"
},
"mystringproperty3": {
"type": "string",
"term_vector": "with_positions_offsets",
"analyzer": "index_ngram_analyzer",
"search_analyzer": "search_term_analyzer"
},
"mystringproperty4": {
"type": "string",
"term_vector": "with_positions_offsets",
"analyzer": "index_ngram_analyzer",
"search_analyzer": "search_term_analyzer"
}
}
}
},
"settings": {
"index": {
"creation_date": "1498030893611",
"analysis": {
"analyzer": {
"search_term_analyzer": {
"filter": "lowercase",
"type": "custom",
"tokenizer": "ngram_tokenizer"
},
"index_ngram_analyzer": {
"filter": ["lowercase"],
"type": "custom",
"tokenizer": "ngram_tokenizer"
}
},
"tokenizer": {
"ngram_tokenizer": {
"token_chars": ["letter", "digit"],
"min_gram": "1",
"type": "nGram",
"max_gram": "15"
}
}
},
"number_of_shards": "5",
"number_of_replicas": "1",
"uuid": "e5kBX-XRTKOqeAScO1Fs0w",
"version": {
"created": "2040499"
}
}
},
"warmers": {}
}
}
}
这是嵌入式 Elasticsearch 实例，不确定是否相关。
我的查询如下所示
MatchQueryBuilder queryBuilder = matchPhrasePrefixQuery("_all", query).maxExpansions(50);
final SearchResponse response = client.prepareSearch("myindex")
.setQuery(queryBuilder)
.addHighlightedField("mystringproperty3", 0, 0)
.addHighlightedField("mystringproperty4", 0, 0)
.addHighlightedField("myarrayproperty.mystringproperty1", 0, 0)
.setHighlighterRequireFieldMatch(false)
.execute().actionGet();
而且它不起作用。我尝试将查询更改为queryStringQuery，但似乎它不支持按单词的一部分进行搜索。有什么建议吗？
最佳答案
这是不可能的。 Elasticsearch 对单词进行索引。从标记化的角度来看，您在这里无能为力。
您可能需要在搜索结果上编写包装器。 (不是 Elasticsearch 特定的)
关于elasticsearch - Elasticsearch 突出显示整个单词而不是单词的一部分，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44670456/