条件查询
GET /toutiao_v1/_search
{
"query":{
"match":{
"title":"入门"
}
}
}
执行结果：
{
"took": 21,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 5, //查询到的总共记录数
"relation": "eq"
},
"max_score": 0.17402273,
"hits": [
{
"_index": "toutiao",
"_type": "_doc",
"_id": "pGcmlnsBRQ4q0pqf1bII",
"_score": 0.17402273,
"_source": {
"title": "JAVA从入门到放弃",
"content": "JAVA高手的技巧，java基础、高级"
}
},
{
"_index": "toutiao",
"_type": "_doc",
"_id": "VmdIlnsBRQ4q0pqf57bv",
"_score": 0.17402273,
"_source": {
"title": "JAVA从入门到放弃",
"content": "JAVA高手的技巧，java基础、高级"
}
},
{
"_index": "toutiao",
"_type": "_doc",
"_id": "WWdIlnsBRQ4q0pqf9ra0",
"_score": 0.17402273,
"_source": {
"title": "JAVA从入门到放弃",
"content": "JAVA高手的技巧，java基础、高级"
}
},
{
"_index": "toutiao",
"_type": "_doc",
"_id": "F8JTl3sBF1sR4vvlFbwP",
"_score": 0.17402273,
"_source": {
"title": "JAVA从入门到放弃",
"content": "JAVA高手的技巧，java基础、高级"
}
},
{
"_index": "toutiao",
"_type": "_doc",
"_id": "1",
"_score": 0.17402273,
"_source": {
"title": "mysql从入门到放弃",
"content": "mysql技术内幕"
}
}
]
}
}
分页条件查询
GET /toutiao_v1/_search
{
"query":{
"match":{
"title":"入门"
}
},
"from":0, //当前页的起始条数，从0开始
"size":2 //查询的记录数，即：每页显示的记录数
}
执行结果：
{
"took": 6,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 5, //查询到的总共记录数
"relation": "eq"
},
"max_score": 0.17402273,
"hits": [
{
"_index": "toutiao",
"_type": "_doc",
"_id": "pGcmlnsBRQ4q0pqf1bII",
"_score": 0.17402273,
"_source": {
"title": "JAVA从入门到放弃",
"content": "JAVA高手的技巧，java基础、高级"
}
},
{
"_index": "toutiao",
"_type": "_doc",
"_id": "VmdIlnsBRQ4q0pqf57bv",
"_score": 0.17402273,
"_source": {
"title": "JAVA从入门到放弃",
"content": "JAVA高手的技巧，java基础、高级"
}
}
]
}
}
from 计算方式
from = (页码-1) * size
例子：
第1页的 from：(1-1) * 10
第2页的 from：(2-1) * 10
下一页
{
"query":{
"match":{
"title":"入门"
}
},
"from":2, //第2页
"size":2 //查询的记录数，即：每页显示的记录数
}
指定查询字段
相当于 select title from toutiao_v1
如下：
GET /toutiao_v1/_search
{
"query":{
"match":{
"title":"入门"
}
},
"from":0,
"size":2,
"_source":["title","author","like","date"]
}
查询结果：
{
"took" : 0,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 5,
"relation" : "eq"
},
"max_score" : 1.436875,
"hits" : [
{
"_index" : "toutiao_v1",
"_type" : "_doc",
"_id" : "jl-h1H8BcF98mmCajh9j",
"_score" : 0.40303767,
"_source" : {
"date" : "2021-08-29",
"like" : 983,
"author" : "韩梅梅",
"title" : "JAVA从入门到放弃"
}
}
]
}
}