序
小诗欣赏：
小池
宋代：杨万里
泉眼无声惜细流，树阴照水爱晴柔。
小荷才露尖尖角，早有蜻蜓立上头。
正文
配置crul环境变量：
E:\software\curl-7.60.0\I386
测试curl配置正确性
curl http:/ //www.baidu.com
返回：
查看所有索引
curl http://localhost:9200/_cat/indices?v
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
yellow open website tIG5OrIXR4W8MrivVZ87RA 5 1 2 0 10.1kb 10.1kb
yellow open megacorp 356W-zR3RAS9wmFGtemXOA 5 1 3 0 17.4kb 17.4kb
查看节点
curl 'localhost:9200/_cat/nodes?v'
ip heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
127.0.0.1 29 49 9 mdi * PoIa-5T
查看集群健康程度
curl 'localhost:9200/_cat/health?v'
epoch timestamp cluster status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent
1530061690 09:08:10 bruce-application yellow 1 1 10 10 0 0 10 0 - 50.0%
查看版本
curl http://localhost:9200/?pretty
{
"name" : "PoIa-5T",
"cluster_name" : "bruce-application",
"cluster_uuid" : "FfI8hS6cSaC7e67V2nejhA",
"version" : {
"number" : "6.3.0",
"build_flavor" : "default",
"build_type" : "zip",
"build_hash" : "424e937",
"build_date" : "2018-06-11T23:38:03.357887Z",
"build_snapshot" : false,
"lucene_version" : "7.3.1",
"minimum_wire_compatibility_version" : "5.6.0",
"minimum_index_compatibility_version" : "5.0.0"
},
"tagline" : "You Know, for Search"
}
文档操作
1.新增文档：
curl -H "Content-Type: application/json" -XPOST localhost:9200/megacorp/employee/1 -d "{"first_name":"Jane","last_name":"Smith","age":25,"about":"I like to collect rock albums","interests":["music"]}"
或者
curl -H "Content-Type: application/json" -XPUT localhost:9200/megacorp/employee/1 -d "{"first_name":"Jane","last_name":"Smith","age":25,"about":"I like to collect rock albums","interests":["music"]}"
2.修改文档
- curl -H "Content-Type: application/json" -XPUT localhost:9200/megacorp/employee/1 -d "{"first_name":"Jane","last_name":"Smith","age":25,"about":"I like to collect rock albums","interests":["music and pinpang"]}"
如果更新想检查对应的id，然后再做操作有如下两种方法：
PUT /website/blog/123?op_type=create
{ ... }
PUT /website/blog/123/_create
{ ... }
- 基于版本的更新
内部版本更新
PUT /website/blog/1?version=1
{
"title": "My first blog entry",
"text": "Starting to get the hang of this..."
}
外部版本更新
PUT /website/blog/2?version=5&version_type=external
{
"title": "My first external blog entry",
"text": "Starting to get the hang of this..."
}
如果更新版本比当前版本低回报错如下：
{
"error": {
"root_cause": [
{
"type": "version_conflict_engine_exception",
"reason": "[blog][2]: version conflict, current version [10] is higher or equal to the one provided [1]",
"index_uuid": "tIG5OrIXR4W8MrivVZ87RA",
"shard": "2",
"index": "website"
}
],
"type": "version_conflict_engine_exception",
"reason": "[blog][2]: version conflict, current version [10] is higher or equal to the one provided [1]",
"index_uuid": "tIG5OrIXR4W8MrivVZ87RA",
"shard": "2",
"index": "website"
},
"status": 409
}
- 局部更新
POST /website/blog/1/_update
{
"doc" : {
"tags" : [ "testing" ],
"views": 0
}
}
查询该文档curl localhost:9200/website/blog/2
{
"_index": "website",
"_type": "blog",
"_id": "2",
"_version": 13,
"found": true,
"_source": {
"title": "My first blog entry",
"text": "Starting to get the hang of this...",
"views": 0,
"tags": [
"testing"
]
}
}
4.检查文档是否存在
curl -i -XHEAD http://localhost:9200/megacorp/employee/1
返回200表示找到，404未找到
5.查询文档
- curl http://localhost:9200/megacorp/employee/1?pretty
pretty会让Elasticsearch美化输出,如下：
{
"_index" : "megacorp",
"_type" : "employee",
"_id" : "1",
"_version" : 9,
"found" : true,
"_source" : {
"first_name" : "Jane",
"last_name" : "Smith",
"age" : 25,
"about" : "I like to collect rock albums",
"interests" : [
"music and pinpang"
]
}
}
- 部分字段输出：
curl http://localhost:9200/megacorp/employee/1?pretty&_source=first_name,interests
{
"_index" : "megacorp",
"_type" : "employee",
"_id" : "1",
"_version" : 9,
"found" : true,
"_source" : {
"interests" : [
"music and pinpang"
],
"first_name" : "Jane"
}
}
或者你只想得到_source字段而不要其他的元数据，你可以这样请求：
curl http://localhost:9200/megacorp/employee/1/_source?pretty
{
"first_name" : "Jane",
"last_name" : "Smith",
"age" : 25,
"about" : "I like to collect rock albums",
"interests" : [
"music and pinpang"
]
}
- _mget查询
POST localhost:9200/website/blog/_mget
{
"ids": ["1","2"]
}
result:
{
"docs": [
{
"_index": "website",
"_type": "blog",
"_id": "1",
"_version": 4,
"found": true,
"_source": {
"title": "My first blog entry",
"text": "Just trying this out..."
}
},
{
"_index": "website",
"_type": "blog",
"_id": "2",
"_version": 13,
"found": true,
"_source": {
"title": "My first blog entry",
"text": "Starting to get the hang of this...",
"views": 0,
"tags": [
"testing"
]
}
}
]
}
POST localhost:9200/website/blog/_mget
{
"docs" : [
{ "_id" : 2 }
]
}
result:
{
"docs": [
{
"_index": "website",
"_type": "blog",
"_id": "2",
"_version": 13,
"found": true,
"_source": {
"title": "My first blog entry",
"text": "Starting to get the hang of this...",
"views": 0,
"tags": [
"testing"
]
}
}
]
}
6.删除文档
curl -XDELETE http://localhost:9200/megacorp/employee/1
参考文档：https://es.xiaoleilu.com/