文档简单CURD操作

（1）新增文档，建立索引

格式：

PUT  /index/type/id
{
	//json数据
}

示例：

PUT /ecommerce/product/1
{
  "name":" 高露洁牙膏",
  "price":5,
  "tag":["美白","健康"]
}

响应如下：

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 1,
  "result": "created",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  },
  "created": true
}

（2）查询文档

格式：

GET /index/type/id

示例，查询刚索引的文档：

GET ecommerce/product/1

响应如下：

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 1,
  "found": true,
  "_source": {
    "name": " 高露洁牙膏",
    "price": 5,
    "tag": [
      "美白",
      "健康"
    ]
  }
}

（3）修改文档，PUT替换文档

格式（与新增一致）：

PUT /index/type/id
{
	//json数据
}

示例：

PUT ecommerce/product/1
{
  "name":" sheng'ji'ban高露洁牙膏",
  "price":5,
  "tag":["美白","健康"]
}

响应如下：

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 2,
  "result": "updated",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  },
  "created": false
}

现在去查看修改后的文档：

GET /ecommerce/product/1

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 2,
  "found": true,
  "_source": {
    "name": " sheng'ji'ban高露洁牙膏",
    "price": 5,
    "tag": [
      "美白",
      "健康"
    ]
  }
}

PUT替换方式有一个不好，就是必须带上所有的field，才能去进行信息的修改；如果缺少字段field,在修改后文档中也会缺少字段field。
示例：

PUT ecommerce/product/1
{
  "name":"高露洁牙膏",
  "price":5
}

响应如下：

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 3,
  "result": "updated",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  },
  "created": false
}

查看修改后的文档：

GET /ecommerce/product/1

发现缺少了tag字段：

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 3,
  "found": true,
  "_source": {
    "name": "高露洁牙膏",
    "price": 5
  }
}

（4）修改文档，POST 修改

格式：

POST /index/type/id/_update
{
	"doc":{
		//json字段
	}
}

示例：
修改name字段，并新增newTag字段

POST ecommerce/product/1/_update
{
  "doc":{
    "name":"jia'qiang'ban加强版gao'lu'jie高露洁 ",
    "newTag":"this is a new field!"
  }
}

响应如下：

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 5,
  "result": "updated",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  }
}

查看修改后的文档：

GET /ecommerce/product/1

可以看到name字段已被修改，同时新增了newTag字段：

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 5,
  "found": true,
  "_source": {
    "name": "jia'qiang'ban加强版gao'lu'jie高露洁 ",
    "price": 5,
    "newTag": "this is a new field!"
  }
}

（5）删除文档

格式：

DELETE /index/type/id

示例：

DELETE ecommerce/product/1

响应如下：

{
  "found": true,
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "_version": 6,
  "result": "deleted",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  }
}

再去查看文档，发现已被删除：

GET /ecommerce/product/1

{
  "_index": "ecommerce",
  "_type": "product",
  "_id": "1",
  "found": false
}