基本查询：内置条件
组合查询：组合基本查询
过滤：查询同时，通过filter筛选数据
准备工作
GET /library/books/_mget
{
"ids":["1","2","3","4","5","6"]
}
GET /library/_mapping
0、简单的查询
请求信息
GET /library/books/_search?q=title:elasticsearch
GET /library/_search?q=title:mongodb
GET /_search?q=title:blacksmith
1、term、terms查询：查询包含关键词
功能描述：term查询，查询某个字段例有某个关键词的文档
请求消息：
GET /library/books/_search
{
"query":{
"term":{
"preview":"elasticsearch"
}
}
}
功能描述：terms查询，查询某个字段例有多个关键词的文档，minimum_match(1,至少有一个关键词存在)
请求消息：
GET /library/books/_search
{
"query":{
"terms":{
"preview":["elasticsearch","book"],
"minimun_match":1
}
}
}
2、from、size: 控制查询返回的数量
请求信息
GET /library/books/_search?q=title:elasticsearch
GET /library/books/_search
{
"from":1,
"size":2,
"query":{
"term":{
"title":"elasticsearch"
}
}
}
3、返回版本号_version
请求信息
GET /library/books/_search
{
"version":true,
"query":{
"term":{
"preview":"elasticsearch"
}
}
}
4、match查询: 和term查询区别，会使用分析器
请求信息
GET /library/books/_search
{
"from":1,
"size":2,
"query":{
"term":{
"title":"elasticsearch"
}
}
}
3、返回版本号_version
请求信息
GET /library/books/_search
{
"version":true,
"query":{
"match":{
"preview":"elasticsearch"
}
}
}
GET /library/books/_search
{
"version":true,
"query":{
"match":{
"price":11
}
}
}
match_all 查询指定索引下的所有文档？
GET /library/books/_search
{
"query":{
"match_all":{}
}
}
match_phrase: 短语查询，slop定义关键词之间间隔多少位置单词
GET /library/books/_search
{
"query":{
"match_phrase":{
"preview":{
"query":"elasticsearch,distributed",
"slop":2
}
}
}
}
multi_match:可以查询指定多个字段都包含某个关键字的文档
GET /library/books/_search
{
"query":{
"multi_match":{
"query":"elasticsearch",
"fields":["title","preview"]
}
}
}
指定返回的字段
只能返回store为yes的字段
GET /library/books/search
{
"fields":["title","preview"],
"query":{
"match":{
"preview":"elasticsearch"
}
}
}
控制加载的字段：
GET /library/books/search
{
"partial_fields":{
"partial":{
"include":["preview"],
"exclude":["title","price"]
}
},
"query":{
"match":{
"preview":"elasticsearch"
}
}
}
5、排序查询: sort、asc/desc
请求信息
GET /library/books/_search
{
"query":{
"match_all":{}
}，
"sort":[
{
"price":{
"order":"desc"
}
}
]
}
响应信息
6、prefix前缀匹配查询
请求信息
GET /library/books/_search
{
"query":{
"prefix":{
"title":{
"value":"ret"
}
}
}
}
响应信息
7、range范围查询（range，from，to，include_lower,include_upper,boost）
include_lower:包含范围左边界，默认是true
include_upper:包含范围右边界，默认是true
请求信息
GET /library/books/_search
{
"query":{
"range":{
"publish_date":{
"from":"2015-01-01",
"to":"2015-07-01"
}
}
}
}
GET /library/books/_search
{
"query":{
"range":{
"price":{
"from":"10.00",
"to":"20.00",
"include_lower":true,
"include_upper":true
}
}
}
}
响应信息
8、wildcard查询--很影响性能
* 代表1-n个字符
？ 代表一个字符
请求信息
GET /library/books/_search
{
"query":{
"wildcard":{
"preview":“luc？ne”
}
}
}
响应信息
9、fuzzy模糊查询--很耗性能
value
boost
min_similarity
prefix_length
max_expansions
请求信息
GET /library/books/_search
{
"query":{
"fuzzy":{
"preview":“rabbit”,
"min_similarity":0.5
}
}
}
fuzzy_like_this
fuzzy_like_this_field
响应信息
10、more_like_this&more_like_this_field查询
fields:
like_text
percent_terms_to_match
min_term_freq
stop_words
min_doc_freq
min_word_len
max_word_len
boost_terms
boost
analyer