ES 数据搜索(1)

1.准备数据：JSON生成器：www.json-generator.com/

下载官网原数据：https://raw.githubusercontent.com/elastic/elasticsearch/master/docs/src/test/resources/accounts.json

curl -H "Content-Type: application/json" -XPOST "localhost:9200/bank/account/_bulk?pretty&refresh" --data-binary "@accounts.json"

2.两种search请求方式：

REST Request URI

q=*匹配所有文档          sort 按account_number字段排序 升序 The pretty parameter, again, just tells Elasticsearch to return pretty-printed JSON results.

curl -XGET 'localhost:9200/bank/_search?q=*&sort=account_number:asc&pretty&pretty'

took - Elasticsearch执行搜索的时间（以毫秒为单位） timed_out - 告诉我们搜索是否超时 _shards - 告诉我们搜索了多少碎片，以及搜索碎片成功/失败的次数 hits - 搜索结果 hits.total - 符合我们搜索条件的文件总数 hits.hits - 实际的搜索结果数组（默认为前10个文档） hits.sort - 对结果进行排序键（按分数排序时丢失） hits._score、max_score得分

{ "took" : 63, "timed_out" : false, "_shards" : { "total" : 5, "successful" : 5, "skipped" : 0, "failed" : 0 }, "hits" : { "total" : 1000, "max_score" : null, "hits" : [ { "_index" : "bank", "_type" : "account", "_id" : "0", "sort": [0], "_score" : null, "_source" : {"account_number":0,"balance":16623,"firstname":"Bradshaw","lastname":"Mckenzie","age":29,"gender":"F","address":"244 Columbus Place","employer":"Euron","email":"bradshawmckenzie@euron.com","city":"Hobucken","state":"CO"} }, { "_index" : "bank", "_type" : "account", "_id" : "1", "sort": [1], "_score" : null, "_source" : {"account_number":1,"balance":39225,"firstname":"Amber","lastname":"Duke","age":32,"gender":"M","address":"880 Holmes Lane","employer":"Pyrami","email":"amberduke@pyrami.com","city":"Brogan","state":"IL"} }, ... ] } }

REST Request body    

同上的rest请求体方式： query：请求全部 sort：按account_number升序排序	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match_all": {} }, "sort": [ { "account_number": "asc" } ] } '
	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match_all": {} } } '
只写from	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match_all": {} }, "size": 1 } '
from+size	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match_all": {} }, "from": 10, "size": 10 } '
sort	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match_all": {} }, "sort": { "balance": { "order": "desc" } } } '
只返回关注的字段：account_number,balance	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match_all": {} }, "_source": ["account_number", "balance"] } '
match query：匹配查询 返回account_num=20的结果	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match": { "account_number": 20 } } } '
匹配查询 返回address包含mill or  lane的结果	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match": { "address": "mill lane" } } } '
匹配：address包含：mill and lane	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "match_phrase": { "address": "mill lane" } } } '
bool查询：must 都匹配  a and b	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "bool": { "must": [ { "match": { "address": "mill" } }, { "match": { "address": "lane" } } ] } } } } '
bool查询：should 可以匹配：a or b	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "bool": { "should": [ { "match": { "address": "mill" } }, { "match": { "address": "lane" } } ] } } } '
bool查询：must_not 都不匹配	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "bool": { "must_not": [ { "match": { "address": "mill" } }, { "match": { "address": "lane" } } ] } } } '
bool查询：混合查询	curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d' { "query": { "bool": { "must": [ { "match": { "age": "40" } } ], "must_not": [ { "match": { "state": "ID" } } ] } } } '
filter查询：落入filter范围的文档全部等价，不存在谁的score比谁的高	GET / bank / _search { “query”：{ “bool”：{ “must”：{“match_all”：{}}， “filter”：{ “range”：{ “balance”：{ “gte” “lte”：30000 } } } } } }