ElasticSearch基本的CURD

1.创建一个名为member的索引数据

PUT member
{
  "mappings": {
    "properties": {
      "id": {
        "type": "keyword"
      },
      "name": {
        "type": "keyword"
      },
      "age": {
        "type": "byte"
      }
    }
  }
}

---

创建成功

{
  "acknowledged" : true,
  "shards_acknowledged" : true,
  "index" : "member"
}

2.基本的CURD

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• T1 如果文档存在则是修改，则会删除再创建新的文档

PUT member/_doc/1
{
  "id":1,
  "age":1,
  "name":"this is first."
}

{
  "_index" : "member",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 0,
  "_primary_term" : 1
}

如果再次对 id = 1 这条数据进行以下操作,可以看到原来的数据字段age 和 id不在了。

PUT member/_doc/1
{
  "name":"this is update2"
}

返回结果：

{
  "_index" : "member",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 2,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 8,
  "_primary_term" : 1
}

查询id=1的数据

{
  "_index" : "member",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 2,
  "_seq_no" : 7,
  "_primary_term" : 1,
  "found" : true,
  "_source" : {
    "name" : "this is update2"
  }
}

---

• T2 创建指定ID的文档

POST member/_create/2
{
  "doc": {
    "id": 2,
    "name": "name2",
    "age": 11
  }
}

注：重复插入数据会报错.抛出一个 409 的错误

{
  "error" : {
    "root_cause" : [
      {
        "type" : "version_conflict_engine_exception",
        "reason" : "[2]: version conflict, document already exists (current version [1])",
        "index_uuid" : "tWrrj4lCQ_mT5k7vCRcyvQ",
        "shard" : "0",
        "index" : "member"
      }
    ],
    "type" : "version_conflict_engine_exception",
    "reason" : "[2]: version conflict, document already exists (current version [1])",
    "index_uuid" : "tWrrj4lCQ_mT5k7vCRcyvQ",
    "shard" : "0",
    "index" : "member"
  },
  "status" : 409
}

---

• T3 创建一个自动生成ID的文档

POST member/_doc
{
  "doc": {
    "id": 10,
    "name": "rand-name",
    "age": 20
  }
}

---

• T4 获取指定ID的文档数据

GET member/_doc/2

{
  "_index" : "member",
  "_type" : "_doc",
  "_id" : "2",
  "_version" : 1,
  "_seq_no" : 10,
  "_primary_term" : 1,
  "found" : true,
  "_source" : {
    "doc" : {
      "id" : 2,
      "name" : "name2",
      "age" : 11
    }
  }
}

• T5 修改指定ID的文档数据

POST member/_update/3
{
  "doc": {
    "name": "name3 is update"
  }
}

---

• T6 删除指定ID的文档数据

DELETE member/_doc/2

---