RESTful接口URL的格式：
http://IP:9200/<index>/<type>/[<id>]- 其中index、type是必须提供的。
- id是可选的，不提供es会自动生成。
- index、type将信息进行分层，利于管理。
- index可以理解为数据库；type理解为数据表；id相当于数据库表中记录的主键，是唯一的。
RESTful接口URL的增删改查：
添加数据
- #向store索引中添加一些书籍
curl -XPUT 'http://IP:9200/store/books/1' -d '{
"title": "Elasticsearch: The Definitive Guide",
"name" : {
"first" : "Zachary",
"last" : "Tong"
},
"publish_date":"2015-02-06",
"price":"49.99"
}'- #再添加一个书的信息
curl -XPUT 'http://IP:9200/store/books/2' -d '{
"title": "Elasticsearch Blueprints",
"name" : {
"first" : "Vineeth",
"last" : "Mohan"
},
"publish_date":"2015-06-06",
"price":"35.99"
}'查询
- #在linux中通过curl的方式查询
curl -XGET 'http://IP:9200/store/books/1'- #通过浏览器查询
http://IP:9200/store/books/1- # 通过_source获取指定的字段
curl -XGET 'http://IP:9200/store/books/1?_source=title'
curl -XGET 'http://IP:9200/store/books/1?_source=title,price'
curl -XGET 'http://IP:9200/store/books/1?_source'更新
- #可以通过覆盖的方式更新
curl -XPUT 'http://IP:9200/store/books/1' -d '{
"title": "Elasticsearch: The Definitive Guide",
"name" : {
"first" : "Zachary",
"last" : "Tong"
},
"publish_date":"2016-02-06",
"price":"99.99"
}'- # 或者通过 _update API的方式单独更新你想要更新的
curl -XPOST 'http://IP:9200/store/books/1/_update' -d '{
"doc": {
"price" : 88.88
}
}'
curl -XGET 'http://IP:9200/store/books/1'删除
- #删除一个文档
curl -XDELETE 'http://IP:9200/store/books/1'高级查询
最简单filter查询
- 类似 ：SELECT * FROM books WHERE price = 35.99
# 首先添加一条数据
curl -XPUT 'http://IP:9200/store/books/4' -d '{
"title": "Elasticsearch: The Definitive Guide",
"author": "Guide",
"publish_date":"2016-02-06",
"price":"35.99"
}'- # filtered 查询价格是35.99的
- # 返回的的分是1.0
curl -XGET 'http://IP:9200/store/books/_search' -d '{
"query": {
"bool": {
"must": {
"match_all": {}
},
"filter": {
"term": {
"price": 35.99
}
}
}
}
}'- # 返回的的分是1.0
curl -XGET 'http://IP:9200/store/books/_search' -d '{
"query": {
"constant_score": {
"filter": {
"term": {
"price": 35.99
}
}
}
}
}'- # 返回的的分是0.0
指定多个值查询
curl -XGET 'http://IP:9200/store/books/_search' -d '{
"query" : {
"bool" : {
"filter" : {
"terms" : {
"price" : [35.99, 99.99]
}
}
}
}
}'curl -XGET 'http://IP:9200/store/books/_search' -d '{
"query" : {
"bool" : {
"must": {
"match_all": {}
},
"filter" : {
"terms" : {
"price" : [35.99, 99.99]
}
}
}
}
}'
- # SELECT * FROM books WHERE publish_date = "2015-02-06"
curl -XGET 'http://IP:9200/store/books/_search' -d '{
"query" : {
"bool" : {
"filter" : {
"term" : {
"publish_date" : "2015-02-06"
}
}
}
}
}'嵌套查询
# bool过滤查询，可以做组合过滤查询
- 类似：SELECT * FROM books WHERE (price = 35.99 OR price = 99.99) AND publish_date != "2016-02-06"
# 类似的，Elasticsearch也有 and, or, not这样的组合条件的查询方式
# 格式如下：
{
"bool" : {
"must" : [],
"should" : [],
"must_not" : [],
}
}
- # must: 条件必须满足，相当于 and
- # should: 条件可以满足也可以不满足，相当于 or
- # must_not: 条件不需要满足，相当于 not
curl -XGET 'http://IP:9200/store/books/_search' -d '{
"query" : {
"bool" : {
"should" : [
{ "term" : {"price" : 35.99}},
{ "term" : {"price" : 99.99}}
],
"must_not" : {
"term" : {"publish_date" : "2016-02-06"}
}
}
}
}'range范围过滤
- 类似： SELECT * FROM books WHERE price >= 10 AND price < 99
- # gt : > 大于
- # lt : < 小于
- # gte : >= 大于等于
- # lte : <= 小于等于
curl -XGET 'http://IP:9200/store/books/_search' -d '{
"query": {
"range" : {
"price" : {
"gte" : 10,
"lt" : 99
}
}
}
}- #name和author都必须包含Guide，并且价钱等于33.99或者188.99
curl -XGET 'http://IP:9200/store/books/_search' -d '{
"query": {
"bool": {
"must": {
"multi_match": {
"operator": "and",
"fields": [
"name",
"author"
],
"query": "Guide"
}
},
"filter": {
"terms": {
"price": [
35.99,
188.99
]
}
}
}
}
}'参考来源：https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl.html