ElasticSearch基本操作

索引

• 创建索引

PUT / HTTP/1.1
Host: http://127.0.0.1:9200/shopping
//shopping 为索引名

• 查看单个索引信息

GET / HTTP/1.1
Host: http://127.0.0.1:9200/shopping

• 查看所有索引信息

GET /indices?v HTTP/1.1
Host: http://127.0.0.1:9200/_cat

• 删除索引

DELETE / HTTP/1.1
Host: http://127.0.0.1:9200/shopping

 

文档

•  创建（不指定主键）

POST /_doc HTTP/1.1
Host: http://127.0.0.1:9200/shopping
Content-Type: application/json
Content-Length: 33

{
    "name":"张三",
    "age":20
}

•  创建（指定主键）

POST /_doc/1001 HTTP/1.1
Host: http://127.0.0.1:9200/shopping
Content-Type: application/json
Content-Length: 33

{
    "name":"李四",
    "age":20
}

•  创建（指定主键、幂等操作可以设置PUT）

PUT /_doc/1001 HTTP/1.1
Host: http://127.0.0.1:9200/shopping
Content-Type: application/json
Content-Length: 33

{
    "name":"李四",
    "age":20
}

•  主键查询

GET /_doc/1001 HTTP/1.1
Host: http://127.0.0.1:9200/shopping

•  查询所有数据

GET /_search HTTP/1.1
Host: http://127.0.0.1:9200/shopping

查询结果为：

{
    "took": 11,
    "timed_out": false,
    "_shards": {
        "total": 1,
        "successful": 1,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 2,
            "relation": "eq"
        },
        "max_score": 1.0,
        "hits": [
            {
                "_index": "shopping",
                "_type": "_doc",
                "_id": "zYTd3IgBSg2Z_d79qWOf",
                "_score": 1.0,
                "_source": {
                    "name": "张三",
                    "age": 20
                }
            },
            {
                "_index": "shopping",
                "_type": "_doc",
                "_id": "1001",
                "_score": 1.0,
                "_source": {
                    "name": "李四",
                    "age": 20
                }
            }
        ]
    }
}

•  更新数据

修改数据分为全部更新（幂等性可用PUT）和部分更新（非幂等）。

• • 全部修改（幂等）

PUT /_doc/1001 HTTP/1.1
Host: http://127.0.0.1:9200/shopping
Content-Type: application/json
Content-Length: 36

{
    "name": "张三",
    "age": 30
 }

操作结果：

{
    "_index": "shopping",
    "_type": "_doc",
    "_id": "1001",
    "_version": 3,
    "result": "updated",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 3,
    "_primary_term": 1
}

• •  局部更新（非幂等）

POST /_update/1001 HTTP/1.1
Host: http://127.0.0.1:9200/shopping
Content-Type: application/json
Content-Length: 40

{
    "doc":{
        "age": 35
    }
 }

 操作结果

{
    "_index": "shopping",
    "_type": "_doc",
    "_id": "1001",
    "_version": 4,
    "result": "updated",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 4,
    "_primary_term": 1
}

•  删除数据

DELETE /_doc/1001 HTTP/1.1
Host: http://127.0.0.1:9200/shopping