Elasticsearch6.1.3 for CRUD

企业开发 2018-05-03 17:03:25 阅读次数: 6

一、创建文档

[root@ AOS2 @AutoTest01:/root]#curl -X PUT '9.1.6.140:9200/students/class1/1?pretty' -d '
> {
>       "first_name": "changwei",
>    "last_name": "kang",
>       "gender": "male",
>    "age": 28,
>    "courses": "IT services"
> }'
{
  "error" : "Content-Type header [application/x-www-form-urlencoded] is not supported",
  "status" : 406
}
创建文档报错，es6版本要求更加严格需要加上-H 'Content-Type: application/json'

[root@ AOS2 @AutoTest01:/root]#curl -X PUT '9.1.6.140:9200/students/class1/1?pretty' -H 'Content-Type: application/json' -d '
{
      "first_name": "changwei",
   "last_name": "kang",
      "gender": "male",
   "age": 28,
   "courses": "IT services"
}'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "1",
  "_version" : 2,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 1,
  "_primary_term" : 1
}

二、获取文档

[root@ AOS2 @AutoTest01:/root]#curl -XGET 'localhost:9200/students/class1/1?pretty'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "1",
  "_version" : 3,
  "found" : true,
  "_source" : {
    "first_name" : "changweiA",
    "last_name" : "kangA",
    "gender" : "male",
    "age" : 28,
    "courses" : "IT services"
  }
}

创建

[root@ AOS2 @AutoTest01:/root]#curl -X PUT '9.1.6.140:9200/students/class1/2?pretty' -H 'Content-Type: application/json' -d '
{
      "first_name": "changweiAaa",
   "last_name": "kangAaa",
      "gender": "maleaa",
   "age": 28,
   "courses": "IT services aa"
}'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "2",
  "_version" : 2,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 1,
  "_primary_term" : 1
}
获取
[root@ AOS2 @AutoTest01:/root]#curl -XGET 'localhost:9200/students/class1/2?pretty'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "2",
  "_version" : 2,
  "found" : true,
  "_source" : {
    "first_name" : "changweiAaa",
    "last_name" : "kangAaa",
    "gender" : "maleaa",
    "age" : 28,
    "courses" : "IT services aa"
  }
}

三、更新文档

[root@ AOS2 @AutoTest01:/root]#curl -XPOST '9.1.6.140:9200/students/class1/2/_update?' -d '
> {
>    "doc": {"courses": "chushichushichushi"}
> }'
{"error":"Content-Type header [application/x-www-form-urlencoded] is not supported","status":406}[
报错忘了加个参数
修改
[root@ AOS2 @AutoTest01:/root]#curl -XPOST '9.1.6.140:9200/students/class1/2/_update?pretty' -H 'Content-Type: application/json' -d '
 
{                                          
   "doc": {"courses": "chushichushichushiaaaaaaaaa"}
}'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "2",
  "_version" : 4,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 3,
  "_primary_term" : 1
}
查看
[root@ AOS2 @AutoTest01:/root]#curl -XGET '9.1.6.140:9200/students/class1/2?pretty'                                    
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "2",
  "_version" : 4,
  "found" : true,
  "_source" : {
    "first_name" : "changweiAaa",
    "last_name" : "kangAaa",
    "gender" : "maleaa",
    "age" : 28,
    "courses" : "chushichushichushiaaaaaaaaa"
  }
}
修改成功

四、删除文档



删除数据
[root@ AOS2 @AutoTest01:/root]# curl -XDELETE '9.1.6.140:9200/students/class1/1?pretty'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "1",
  "_version" : 4,
  "result" : "deleted",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 3,
  "_primary_term" : 1
}
[root@ AOS2 @AutoTest01:/root]# curl -XDELETE '9.1.6.140:9200/students/class1/2?pretty'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "2",
  "_version" : 5,
  "result" : "deleted",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 4,
  "_primary_term" : 1
}
再次查看
[root@ AOS2 @AutoTest01:/root]# curl -XGET '9.1.6.140:9200/students/class1/2?pretty'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "2",
  "found" : false
}

查看索引
[root@ AOS2 @AutoTest01:/root]#curl -XGET 'localhost:9200/_cat/indices?v'
health status index    uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   students H0z_SQQ2Q_-cXWKmAECBjg   5   1          2            0     23.6kb         11.8kb
删除索引
[root@ AOS2 @AutoTest01:/root]# curl -XDELETE '9.1.6.140:9200/students?pretty'
{
  "acknowledged" : true
}
查看索引
[root@ AOS2 @AutoTest01:/root]#curl -XGET 'localhost:9200/_cat/indices?v'
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size

五、简单查询

1、request API 查询

先创建数据
[root@ AOS2 @AutoTest01:/root]#curl -X PUT '9.1.6.140:9200/students/class1/1?pretty' -H 'Content-Type: application/json' -d '
{
   "first_name": "kang wang",
   "last_name": "changweikang",
   "gender": "male",
   "age": 25,
   "courses": "IT Services Linux"
}'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "1",
  "_version" : 2,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 1,
  "_primary_term" : 1
}
[root@ AOS2 @AutoTest01:/root]#curl -X PUT '9.1.6.140:9200/students/class1/2?pretty' -H 'Content-Type: application/json' -d '
{
   "first_name": "kang",
   "last_name": "changwei",
   "gender": "male",
   "age": 25,
   "courses": "IT Services"
}'
{
  "_index" : "students",
  "_type" : "class1",
  "_id" : "2",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 2,
    "failed" : 0
  },
  "_seq_no" : 0,
  "_primary_term" : 1
}
查询所有文档方法_serach
[root@ AOS2 @AutoTest01:/root]#curl -XGET '9.1.6.140:9200/students/_search?pretty'
{
  "took" : 22,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "skipped" : 0,
    "failed" : 0
  },   上面为查询执行的相关信息
       下面为命中文档的相关信息
  "hits" : {
    "total" : 2,
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "students",
        "_type" : "class1",
        "_id" : "2",
        "_score" : 1.0,
        "_source" : {
          "first_name" : "kang",
          "last_name" : "changwei",
          "gender" : "male",
          "age" : 25,
          "courses" : "IT Services"
        }
      },
      {
        "_index" : "students",
        "_type" : "class1",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "first_name" : "kang wang",
          "last_name" : "changweikang",
          "gender" : "male",
          "age" : 25,
          "courses" : "IT Services Linux"
        }
      }
    ]
  }
}


查询kang字符串的数据
[root@ AOS2 @AutoTest01:/root]#curl -XGET '9.1.6.140:9200/_search?q='kang''
{"took":132,"timed_out":false,"_shards":{"total":5,"successful":5,"skipped":0,"failed":0},"hits":{"total":2,"max_score":0.2876821,"hits":[{"_index":"students","_type":"class1","_id":"2","_score":0.2876821,"_source":
{
   "first_name": "kang",
   "last_name": "changwei",
   "gender": "male",
   "age": 25,
   "courses": "IT Services"
}},{"_index":"students","_type":"class1","_id":"1","_score":0.2876821,"_source":
{
   "first_name": "kang wang",
   "last_name": "changweikang",
   "gender": "male",
   "age": 25,
   "courses": "IT Services Linux"
}}]}}[root@ AOS2 @AutoTest01:/root]#

更直观的json格式
[root@ AOS2 @AutoTest01:/root]#curl -XGET '9.1.6.140:9200/_search?q='kang'&pretty'
{
  "took" : 8,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 2,
    "max_score" : 0.2876821,
    "hits" : [
      {
        "_index" : "students",
        "_type" : "class1",
        "_id" : "2",
        "_score" : 0.2876821,
        "_source" : {
          "first_name" : "kang",
          "last_name" : "changwei",
          "gender" : "male",
          "age" : 25,
          "courses" : "IT Services"
        }
      },
      {
        "_index" : "students",
        "_type" : "class1",
        "_id" : "1",
        "_score" : 0.2876821,
        "_source" : {
          "first_name" : "kang wang",
          "last_name" : "changweikang",
          "gender" : "male",
          "age" : 25,
          "courses" : "IT Services Linux"
        }
      }
    ]
  }
}



		多索引、多类型查询：

			/_search：所有索引；
			/INDEX_NAME/_search：单索引；
			/INDEX1,INDEX2/_search：多索引；
			/s*,t*/_search：
			/students/class1/_search：单类型搜索
			/students/class1,class2/_search：多类型搜索




对每一个文档，会取得其所有域的所有值，生成一个名为“_all”的域；执行查询时，如果在query_string未指定查询的域，则在_all域上执行查询操作；

			GET /_search?q='Kang'
			GET /_search?q='IT20%Linux'
			GET /_search?q=courses:'IT%20Linux'
			GET /_search?q=courses:'Linux'

搜索制定域的字段

[root@ AOS2 @AutoTest01:/root]#curl -XGET '9.1.6.140:9200/_search?q=courses:Linux&pretty'
{
  "took" : 4,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 1,
    "max_score" : 0.2876821,
    "hits" : [
      {
        "_index" : "students",
        "_type" : "class1",
        "_id" : "1",
        "_score" : 0.2876821,
        "_source" : {
          "first_name" : "kang wang",
          "last_name" : "changweikang",
          "gender" : "male",
          "age" : 25,
          "courses" : "IT Services Linux"
        }
      }
    ]
  }
}

2、request body查询

此种查询可以编写更为复杂的查询

[root@ AOS2 @AutoTest01:/root]#curl -XGET '9.1.6.140:9200/students/_search?pretty' -H 'Content-Type: application/json'  -d '
{
   "query":{ "match_all": {}  }
}'
{
  "took" : 9,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 2,
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "students",
        "_type" : "class1",
        "_id" : "2",
        "_score" : 1.0,
        "_source" : {
          "first_name" : "kang",
          "last_name" : "changwei",
          "gender" : "male",
          "age" : 25,
          "courses" : "IT Services"
        }
      },
      {
        "_index" : "students",
        "_type" : "class1",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "first_name" : "kang wang",
          "last_name" : "changweikang",
          "gender" : "male",
          "age" : 25,
          "courses" : "IT Services Linux"
        }
      }
    ]
  }
}

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