ES学习总结

1.创建索引

put localhost:9200/person

2.添加数据

put  localhost:9200/person/_doc/1

{
"first_name" : "John",
"last_name" : "Smith",
"age": 25,
"about" : "I love to go rock climbing",
"interests" : ["sports","music"]
}

3.搜索ES里面的数据

get localhost:9200/person/_doc/1

GET _all  : 查看所有

GET /index名/_doc（默认的type，6版本以后可省略）/id : 根据id查

根据指定条件查询：

should=or

must=and

match=like

POST /person/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "last_name": "Smith"
          }
        },
        {
          "match": {
            "about": "basketball"
          }
        }
      ]
    }
  }
}

启动logstash

bin/logstash -f config/mysql.conf

添加和更新文档

POST test/job/1
{
"becif": "612",
"uuid": "vprcBisp"
}

查询分词效果：

POST http://127.0.0.1:9200/_analyze?pretty=true

{

    "analyzer":"standard",

    "text": "我是程序员"

}

query string search

query DSL  Domain Specified Language 特定领域的语言

GET ecommerce/product/_search
{
  "query": {
    "match_all": {}
  }
}
 
GET /ecommerce/product/_search
{
  "query": {
    "match": {
      "name": "yagao"
    }
  },
  "sort": [
    {
      "price": {
        "order": "desc"
      }
    }
  ]
}

_search 查询

#实现分页查询
GET ecommerce/product/_search
{
  "query" :{"match_all":{}},
  "from":1,
  "size":2
}
 
# 只查询部分字段
GET ecommerce/product/_search
{
  "query": {
    "match_all": {}
  },
  "_source": ["name","price"]
}

3.query filter

搜索商品名称包含yagao,而且售价大于25的商品

GET /ecommerce/product/_search
{
  "query": {
    "bool": {
      "must": {
        "match":
        {
          "name":"yagao"
        }
      },
      "filter": {
        "range": {
          "price": {
            "gt": 25
          }
        }
      }
    }
  }
}

4.全文检索

PUT /ecommerce/product/4
{
   "name": "special yagao",
    "desc": "special meibai",
    "price": 50,
     "producer": "special yagao producer",
     "tags": [
            "meibai"
          ]
}

GET /ecommerce/product/_search
{
  "query": {
       "match": {
         "producer": "yagao producer"
       }
  }
}

无论学习什么技术，一定自己动手，特别是手工敲各种代码，不要粘贴复制，比如说当初学java，学shell, 学javascript，学hadoop