准备工作

在本节中，我们将向ElasticSearch添加一些索引、映射和数据。这些数据将在本教程中解释的示例中使用。

我们先启动好ElasticSearch和Kibana，然后访问http://localhost:5601/app/kibana#/dev_tools，进入Kibana的开发工具界面，让我们一步一步做。

创建索引

在Kibana中执行如下命令。

PUT schools

响应内容

命令执行后，如果没有任何问题，会返回如下内容。

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

如果没有提示error，就意味着成功创建了索引 ，如图所示。

创建映射并添加数据

ElasticSearch将根据请求体中提供的数据自动创建映射，我们将使用其批量功能在该索引中添加多个JSON对象。

POST /schools/_bulk
{
  "index": {
    "_index": "schools",
    "_id": "1"
  }
}
{
  "name": "Central School",
  "description": "CBSE Affiliation",
  "street": "Nagan",
  "city": "paprola",
  "state": "HP",
  "zip": "176115",
  "location": [
    31.8955385,
    76.8380405
  ],
  "fees": 2000,
  "tags": [
    "Senior Secondary",
    "beautiful campus"
  ],
  "rating": "3.5"
}
{
  "index": {
    "_index": "schools",
    "_id": "2"
  }
}
{
  "name": "Saint Paul School",
  "description": "ICSE Afiliation",
  "street": "Dawarka",
  "city": "Delhi",
  "state": "Delhi",
  "zip": "110075",
  "location": [
    28.5733056,
    77.0122136
  ],
  "fees": 5000,
  "tags": [
    "Good Faculty",
    "Great Sports"
  ],
  "rating": "4.5"
}
{
  "index": {
    "_index": "schools",
    "_id": "3"
  }
}
{
  "name": "Crescent School",
  "description": "State Board Affiliation",
  "street": "Tonk Road",
  "city": "Jaipur",
  "state": "RJ",
  "zip": "176114",
  "location": [
    26.8535922,
    75.7923988
  ],
  "fees": 2500,
  "tags": [
    "Well equipped labs"
  ],
  "rating": "4.5"
}

返回响应

{
  "took" : 273,
  "errors" : false,
  "items" : [
    {
      "index" : {
        "_index" : "schools",
        "_type" : "_doc",
        "_id" : "1",
        "_version" : 1,
        "result" : "created",
        "_shards" : {
          "total" : 2,
          "successful" : 1,
          "failed" : 0
        },
        "_seq_no" : 0,
        "_primary_term" : 1,
        "status" : 201
      }
    },
    {
      "index" : {
        "_index" : "schools",
        "_type" : "_doc",
        "_id" : "2",
        "_version" : 1,
        "result" : "created",
        "_shards" : {
          "total" : 2,
          "successful" : 1,
          "failed" : 0
        },
        "_seq_no" : 1,
        "_primary_term" : 1,
        "status" : 201
      }
    },
    {
      "index" : {
        "_index" : "schools",
        "_type" : "_doc",
        "_id" : "3",
        "_version" : 1,
        "result" : "created",
        "_shards" : {
          "total" : 2,
          "successful" : 1,
          "failed" : 0
        },
        "_seq_no" : 2,
        "_primary_term" : 1,
        "status" : 201
      }
    }
  ]
}

添加其他索引

POST schools_gov

返回响应

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

(这意味着成功创建了索引)

添加其他数据

POST schools_gov/_bulk
{
   "index":{
      "_index":"schools_gov", "_id":"1"
   }
}
{
   "name":"Model School", "description":"CBSE Affiliation", "street":"silk city",
   "city":"Hyderabad", "state":"AP", "zip":"500030", "location":[17.3903703, 78.4752129],
   "fees":200, "tags":["Senior Secondary", "beautiful campus"], "rating":"3"
}
{
   "index":{
      "_index":"schools_gov",  "_id":"2"
   }
}
{
   "name":"Government School", "description":"State Board Affiliation",
   "street":"Hinjewadi", "city":"Pune", "state":"MH", "zip":"411057",
   "location": [18.599752, 73.6821995], "fees":500, "tags":["Great Sports"], "rating":"4"
}

返回响应

{
  "took" : 293,
  "errors" : false,
  "items" : [
    {
      "index" : {
        "_index" : "schools_gov",
        "_type" : "_doc",
        "_id" : "1",
        "_version" : 1,
        "result" : "created",
        "_shards" : {
          "total" : 2,
          "successful" : 1,
          "failed" : 0
        },
        "_seq_no" : 0,
        "_primary_term" : 1,
        "status" : 201
      }
    },
    {
      "index" : {
        "_index" : "schools_gov",
        "_type" : "_doc",
        "_id" : "2",
        "_version" : 1,
        "result" : "created",
        "_shards" : {
          "total" : 2,
          "successful" : 1,
          "failed" : 0
        },
        "_seq_no" : 1,
        "_primary_term" : 1,
        "status" : 201
      }
    }
  ]
}