ElasticSearch基本使用

#查看集群健康状态
GET /_cat/health?v
#查看集群节点
GET /_cat/nodes?v
#查看所有索引
GET /_cat/indices?v
#删除索引
DELETE /test?pretty
#创建索引
PUT /test2
 {
            "settings": {
            "number_of_shards" :   1,
            "number_of_replicas" : 0
            }
}

get test2

#查看索引中的mapping
GET test2/_mapping

#新江mapping数据 b相当于表名
#properties中key为字段名称val实是属性和类型和其他配置
POST test2/b/_mapping?pretty
{
	"b": {
		"properties": {
			"title": {"type": "text","store": "true"},
			"description": {"type": "text","index": "false"},
			"price": {"type": "double"},
			"onSale": {"type": "boolean"},
			"type": {"type": "integer"},
			"createDate": {"type": "date"}
		}
	}
}

POST test2/b
{
  "title": "zhangsan",
  "description": "this is a random desc ",
  "price": 22.6,
  "onSale": "true",
  "type": 2,
  "createDate": "2018-01-12"
}

PUT /test

#批处理 新增数据
POST /test/doc/_bulk?pretty
{"index":{"_id":"1"}}
{"name": "JohnDoe" ,"age":10}
{"index":{"_id":"2"}}
{"name": "zhangsan" ,"age":15}
{"index":{"_id":"3"}}
{"name": "zhangsan" ,"age":16}
{"index":{"_id":"4"}}
{"name": "zhangsan1" ,"age":16}

#分页排序查询
GET /test/_search
{
  "query": { "match_all": {} },
  "from": 1,
  "size": 2,
  "sort":[
    {"age":"asc"}
    ]
}

#条件查询
GET /test/_search
{
  "query": { "match": { "name": "zhangsan John" } }
}

#集合查询相当于 group by
GET /test/_search
{
      "size": 0,
      "aggs": {
        "group_by_state": {
          "terms": {
            "field": "age"
          }
        }
      }
    }

未完待续。。。。