摘要
System：Centos7.X
JDK Version：1.8
ElasticSearch Version：6.5.4
# 一：增
# 新增
注意：不能Auto indent
POST /_bulk
{"create":{"_index":"ccjjltx","_type":"_doc","_id":"1"}}
{"name":"ccj"}
{"index":{"_index":"ccjjltx","_type":"_doc"}}
{"name":"ccjjltx"}
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结果
{
"took" : 19,
"errors" : false,
"items" : [
{
"create" : {
"_index" : "ccjjltx",
"_type" : "_doc",
"_id" : "1",
"_version" : 3,
"result" : "created",
"_shards" : {
"total" : 2,
"successful" : 2,
"failed" : 0
},
"_seq_no" : 6,
"_primary_term" : 1,
"status" : 201
}
},
{
"index" : {
"_index" : "ccjjltx",
"_type" : "_doc",
"_id" : "tZMHd3EBBcVjO8AAEG8F",
"_version" : 1,
"result" : "created",
"_shards" : {
"total" : 2,
"successful" : 2,
"failed" : 0
},
"_seq_no" : 7,
"_primary_term" : 1,
"status" : 201
}
}
]
}
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# 二：删
# 清空表
POST ccjjltx/_doc/_delete_by_query
{
"query": {
"match_all": {}
}
}
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结果
{
"took" : 82,
"timed_out" : false,
"total" : 2,
"deleted" : 2,
"batches" : 1,
"version_conflicts" : 0,
"noops" : 0,
"retries" : {
"bulk" : 0,
"search" : 0
},
"throttled_millis" : 0,
"requests_per_second" : -1.0,
"throttled_until_millis" : 0,
"failures" : [ ]
}
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使用***GET ccjjltx/_doc/_search***查询
结果
{
"took" : 0,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : 0,
"max_score" : null,
"hits" : [ ]
}
}
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# 三：改
# 根据id新增字段
GET ccjjltx/_doc/3
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# 根据id修改字段
POST ccjjltx/_doc/3/_update
{
"script" : "ctx._source.views+=1"
}
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使用***GET ccjjltx/_doc/3***查询
结果
{
"_index" : "ccjjltx",
"_type" : "_doc",
"_id" : "3",
"_version" : 3,
"found" : true,
"_source" : {
"name" : "ccj",
"views" : 1,
"tags" : [
"testing"
]
}
}
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# 四：查
# 结果不需要元数据
GET ccjjltx/_doc/1/_source
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结果
{
"name" : "ccj"
}
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# 结果只需要指定字段
GET task_center_dev/todo/_search?_source=taskId,taskType
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结果
{
"took": 1,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 1.0,
"hits": [{
"_index": "task_center_dev",
"_type": "todo",
"_id": "1245967770378698752",
"_score": 1.0,
"_source": {
"taskType": 2,
"taskId": "1245967770378698752"
}
}]
}
}
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GET task_center_dev/todo/_search
{
"_source": [
"taskId",
"taskType"
]
}
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GET task_center_dev/todo/_search
{
"_source": [
"taskId",
"taskType"
]
}
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GET /task_center_dev/todo/_search
{
"_source": {
"includes": [
"task*"
],
"excludes": [
"taskType"
]
}
}
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结果
{
"took": 1,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 1.0,
"hits": [{
"_index": "task_center_dev",
"_type": "todo",
"_id": "1245967770378698752",
"_score": 1.0,
"_source": {
"taskId": "1245967770378698752"
}
}]
}
}
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# 文档是否存在
存在状态码：200 不存在状态码：404
HEAD ccjjltx/_doc/1
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# 查询多个文档
GET /_mget
{
"docs": [
{
"_index": "ccjjltx",
"_type": "_doc",
"_id": 1
},
{
"_index": "ccjjltx",
"_type": "_doc",
"_id": 2,
"_source": "name"
}
]
}
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结果
{
"docs" : [
{
"_index" : "ccjjltx",
"_type" : "_doc",
"_id" : "1",
"found" : false
},
{
"_index" : "ccjjltx",
"_type" : "_doc",
"_id" : "2",
"_version" : 5,
"found" : true,
"_source" : {
"name" : "ccj"
}
}
]
}
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# 查询带version
GET ccj/_doc/search?q=title:test&version=true
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使用Query DSL语法也是同样的
GET ccj/_doc/_search
{
"query" : {
"term" : {
"title" : "test"
}
},
"version" : true
}
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