elasticsearch 基础查询语句与常用语句
整理常用的es查询语句： 基于kibana的Dev Tools控制板
--------------- 索引相关查询
//查询所有索引及容量
GET _cat/indices
//查询索引映射结构
GET my_index/_mapping
// 查询所有索引映射结构
GET _all
// 查询所有的相同前缀索引
GET my-*/_search
// 查询所有索引模板
GET _template
// 查询具体索引模板
GET _template/my_template
---------------集群相关
//查询集群健康状态
GET _cluster/health
// 查询所有节点
GET _cat/nodes
// 查询索引及分片的分布
GET _cat/shards
// 查询所有插件
GET _cat/plugins
-----------------写入模块
-----写入索引模板
PUT _template/my_template
{
"template" : "my-*",
"order" : 0,
"settings" : {
"number_of_shards" : 10,
"number_of_replicas" : 0
},
"mappings": {
"default": {
"_all": {
"enabled": false
}， "properties": {
"name": {
"type": "text"
},
"age": {
"type": "long"
}
}
}
}
}
-----------创建索引映射结构
PUT my_index
{
"mappings": {
"doc": {
"properties": {
"name": {
"type": "text"
},
"blob": {
"type": "binary"
}
}
}
}
}-------------写入索引
PUT my_index/doc/1
{
"name": "Some binary blob",
"blob": "U29tZSBiaW5hcnkgYmxvYg=="
}-------------删除
// 索引
DELETE my-index
// 模板
DELETE _template/my_template
--------------DSL query查询
---------使用本地插件查询
{
"size": 10,
"from": 0,
"query": {
"function_score": {
"script_score": {
"script": {
"inline": "featurescore",
"lang": "native",
"params": {
"name": "you",
"age": "20"
}
}
},
"query": {
"bool": {
"filter": {
"term": {
"name": "you"
}
}
}
}
}
},
"_source": {
"includes": ["name", "age"]
},
"sort": {
"_score": {
"order": "asc"
}
}
}
// 说明 inline 指定插件名 lang指定插件形式 native是本地插件 param定义参数 插件里使用XContentMapValues.nodeStringValue(params.get("name"), null)获取 , elasticseach里存储的字段值使用 source().get("name") 来获取,插件会并行处理es中每一条数据 ；
_source 指定返回字段 ， sort 指定插件处理结果的排序字段
---------基础query
//查询所有
GET _search
{
"query": {
"match_all": {}
}
}
// 查询单个索引 的 固定属性
---精确匹配
GET _search
{
"query": {
"term": { "name" : "you" }
}
}
---模糊匹配
GET _search
{
"query": {
"match": { "name" : "you" }
}
}
---范围查找
{
"query": {
"range": {
}
}
// 功能性查询
-----过滤
GET my_index/_search
{
"query": {
"bool": {
"filter": {
"term":{"age":1095}
}
}
}
}
---或 or
GET my - test / _search {
"query": {
"bool": {
"should": [{
"term": {
"name": "you"
}
}, {
"match": {
"age": 20
}
}]
}
}
}
---与 AND
GET my-test/_search
{
"query": {
"bool": {
"must" : [{
"match" : {
"name" : "you"
}
},{
"range":{
"age":{
"from" : 10 , "to" : 20
}
}
}]
}
}
}
---必须 =
GET my_index/_search
{
"query": {
"bool": {
"must" : {
"range" : {
"age" : { "from" : 10, "to" : 20 }
}
}
}
}
}
---必须不 not
GET my_index/_search
{
"query": {
"bool": {
"must_not" : {
"term" : {
"name" : "you"
}
}
}
}
}
----复合查找
GET my_index/_search
{
"query": {
"bool": {
"should": [{
"match": {
"age": 40
}
},
{
"match": {
"age": 20
}
}],
"filter": {
"match":{
"name":"you"
}
}
}
}
}
------索引迁移
---场景 从A索引 复制到B索引
POST _reindex
{
"source": {
"index": "my_index"
},
"dest": {
"index": "new_my_index"
}
}
-------------基于查询的删除
POST test-index/_delete_by_query
{
"query":{
"term": {
"cameraId":"00000000002"
}
}
}
--查询
GET test-index/_search
{
"query":{
"term": {
"cameraId":"00000000002"
}
}
}