我正在ES中使用建议api并完成。我的实现工作（下面的代码），但我想在查询中搜索多个单词。在下面的示例中，如果我查询搜索＆＃34; word＆＃34;它找到＆＃34; wordpress＆＃34;和输出＆＃34;发现＆＃34;。我想要完成的是查询类似博客杂志＆＃34;这些都是标签，输出为＆＃34;找到＆＃34;。任何帮助，将不胜感激！
映射：
curl -XPUT "http://localhost:9200/test_index/" -d'
{
"mappings": {
"product": {
"properties": {
"description": {
"type": "string"
},
"tags": {
"type": "string"
},
"title": {
"type": "string"
},
"tag_suggest": {
"type": "completion",
"index_analyzer": "simple",
"search_analyzer": "simple",
"payloads": false
}
}
}
}
}'
添加文档：
curl -XPUT "http://localhost:9200/test_index/product/1" -d'
{
"title": "Product1",
"description": "Product1 Description",
"tags": [
"blog",
"magazine",
"responsive",
"two columns",
"wordpress"
],
"tag_suggest": {
"input": [
"blog",
"magazine",
"responsive",
"two columns",
"wordpress"
],
"output": "Found"
}
}'
_suggest查询：
curl -XPOST "http://localhost:9200/test_index/_suggest" -d'
{
"product_suggest":{
"text":"word",
"completion": {
"field" : "tag_suggest"
}
}
}'
The results are as we would expect:
{
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"product_suggest": [
{
"text": "word",
"offset": 0,
"length": 4,
"options": [
{
"text": "Found",
"score": 1
},
]
}
]
}
答案 0 :(得分：0)
如果您愿意切换到使用edge ngrams（如果需要，可以使用完整的ngrams），我认为它可以解决您的问题。
我在这篇博客文章中写了一篇非常详细的解释：
https://qbox.io/blog/an-introduction-to-ngrams-in-elasticsearch
但我会在这里给你一个快速而又脏的版本。诀窍是将ngrams与_all field和match AND operator一起使用。
所以这个映射：
PUT /test_index
{
"settings": {
"analysis": {
"filter": {
"ngram_filter": {
"type": "edge_ngram",
"min_gram": 2,
"max_gram": 20
}
},
"analyzer": {
"ngram_analyzer": {
"type": "custom",
"tokenizer": "standard",
"filter": [
"lowercase",
"ngram_filter"
]
}
}
}
},
"mappings": {
"doc": {
"_all": {
"type": "string",
"analyzer": "ngram_analyzer",
"search_analyzer": "standard"
},
"properties": {
"word": {
"type": "string",
"include_in_all": true
},
"definition": {
"type": "string",
"include_in_all": true
}
}
}
}
}
和一些文件：
PUT /test_index/_bulk
{"index":{"_index":"test_index","_type":"doc","_id":1}}
{"word":"democracy", "definition":"government by the people; a form of government in which the supreme power is vested in the people and exercised directly by them or by their elected agents under a free electoral system."}
{"index":{"_index":"test_index","_type":"doc","_id":2}}
{"word":"republic", "definition":"a state in which the supreme power rests in the body of citizens entitled to vote and is exercised by representatives chosen directly or indirectly by them."}
{"index":{"_index":"test_index","_type":"doc","_id":3}}
{"word":"oligarchy", "definition":"a form of government in which all power is vested in a few persons or in a dominant class or clique; government by the few."}
{"index":{"_index":"test_index","_type":"doc","_id":4}}
{"word":"plutocracy", "definition":"the rule or power of wealth or of the wealthy."}
{"index":{"_index":"test_index","_type":"doc","_id":5}}
{"word":"theocracy", "definition":"a form of government in which God or a deity is recognized as the supreme civil ruler, the God's or deity's laws being interpreted by the ecclesiastical authorities."}
{"index":{"_index":"test_index","_type":"doc","_id":6}}
{"word":"monarchy", "definition":"a state or nation in which the supreme power is actually or nominally lodged in a monarch."}
{"index":{"_index":"test_index","_type":"doc","_id":7}}
{"word":"capitalism", "definition":"an economic system in which investment in and ownership of the means of production, distribution, and exchange of wealth is made and maintained chiefly by private individuals or corporations, especially as contrasted to cooperatively or state-owned means of wealth."}
{"index":{"_index":"test_index","_type":"doc","_id":8}}
{"word":"socialism", "definition":"a theory or system of social organization that advocates the vesting of the ownership and control of the means of production and distribution, of capital, land, etc., in the community as a whole."}
{"index":{"_index":"test_index","_type":"doc","_id":9}}
{"word":"communism", "definition":"a theory or system of social organization based on the holding of all property in common, actual ownership being ascribed to the community as a whole or to the state."}
{"index":{"_index":"test_index","_type":"doc","_id":10}}
{"word":"feudalism", "definition":"the feudal system, or its principles and practices."}
{"index":{"_index":"test_index","_type":"doc","_id":11}}
{"word":"monopoly", "definition":"exclusive control of a commodity or service in a particular market, or a control that makes possible the manipulation of prices."}
{"index":{"_index":"test_index","_type":"doc","_id":12}}
{"word":"oligopoly", "definition":"the market condition that exists when there are few sellers, as a result of which they can greatly influence price and other market factors."}
我可以在两个字段中应用部分匹配（可以使用任意数量的字段），如下所示：
POST /test_index/_search
{
"query": {
"match": {
"_all": {
"query": "theo go",
"operator": "and"
}
}
}
}
返回：
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 0.7601639,
"hits": [
{
"_index": "test_index",
"_type": "doc",
"_id": "5",
"_score": 0.7601639,
"_source": {
"word": "theocracy",
"definition": "a form of government in which God or a deity is recognized as the supreme civil ruler, the God's or deity's laws being interpreted by the ecclesiastical authorities."
}
}
]
}
}
以下是我在这里使用的代码（博客文章中还有更多内容）：
http://sense.qbox.io/gist/e4093c25a8257499f54ced5a09f35b1eb48e4e3c
希望有所帮助。