ElasticSearch入門3: 高級查詢

時間 2019-11-06

原文原文鏈接

尊重原創：http://www.javashuo.com/article/p-qjdnfkca-kd.htmlhtml

單字段 模糊匹配查詢與精準查詢

postman請求

POST     127.0.0.1:9200/book/_search

請求json：

{
   "query":{
           "match":{
               "name":"曉明9"
           }
   }
}

注：match 模糊查詢的標識 ：查詢內容自動拆分紅分詞來查詢
　　若match 改成 match_phrase ：精準查詢  具體能夠查看 http://www.cnblogs.com/liuxiaoming123/p/8119217.html
　　

響應結果：

{
    "took": 51,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 4,
        "max_score": 0.5753642,
        "hits": [
            {
                "_index": "book",
                "_type": "novel",
                "_id": "1",
                "_score": 0.5753642,
                "_source": {
                    "name": "曉明1",
                    "country": "china1",
                    "age": 26,
                    "date": "1992-08-08"
                }
            },
            {
                "_index": "book",
                "_type": "novel",
                "_id": "5",
                "_score": 0.28363907,
                "_source": {
                    "name": "曉明",
                    "country": "china",
                    "age": 26,
                    "date": "1992-08-08"
                }
            },
            {
                "_index": "book",
                "_type": "novel",
                "_id": "8",
                "_score": 0.28363907,
                "_source": {
                    "name": "曉明",
                    "country": "china",
                    "age": 26,
                    "date": "1992-08-08"
                }
            },
            {
                "_index": "book",
                "_type": "novel",
                "_id": "9",
                "_score": 0.23911436,
                "_source": {
                    "name": "曉明9",
                    "country": "china9",
                    "age": 26,
                    "date": "1992-08-08"
                }
            }
        ]
    }
}


多字段 模糊匹配查詢與精準查詢

postman請求URL：

POST  127.0.0.1:9200/book/_search

請求json字符串:

{
   "query":{
           "multi_match":{
               "query":"曉明china",
               "fields":["name","country"]
           }
   }
}

注：multi_match爲指定多字段匹配

響應結果：

{
    "took": 42,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 4,
        "max_score": 0.5753642,
        "hits": [
            {
                "_index": "book",
                "_type": "novel",
                "_id": "1",
                "_score": 0.5753642,
                "_source": {
                    "name": "曉明1",
                    "country": "china1",
                    "age": 26,
                    "date": "1992-08-08"
                }
            },
            {
                "_index": "book",
                "_type": "novel",
                "_id": "5",
                "_score": 0.47000363,
                "_source": {
                    "name": "曉明",
                    "country": "china",
                    "age": 26,
                    "date": "1992-08-08"
                }
            },
            {
                "_index": "book",
                "_type": "novel",
                "_id": "8",
                "_score": 0.47000363,
                "_source": {
                    "name": "曉明",
                    "country": "china",
                    "age": 26,
                    "date": "1992-08-08"
                }
            },
            {
                "_index": "book",
                "_type": "novel",
                "_id": "9",
                "_score": 0.23911436,
                "_source": {
                    "name": "曉明9",
                    "country": "china9",
                    "age": 26,
                    "date": "1992-08-08"
                }
            }
        ]
    }
}

語法查詢 
未指定字段：

postman請求：

POST 127.0.0.1:9200/book/_search

請求json字符串：

{
   "query":{
           "query_string":{
               "query":"(ElasticSearch AND 入門) OR SpringBoot"
           }
   }
}

返回結果：

{
    "took": 21,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 2,
        "max_score": 2.634553,
        "hits": [
            {
                "_index": "book",
                "_type": "novel",
                "_id": "9",
                "_score": 2.634553,
                "_source": {
                    "name": "ElasticSearch 入門",
                    "country": "china9",
                    "age": 26,
                    "date": "1992-08-08"
                }
            },
            {
                "_index": "book",
                "_type": "novel",
                "_id": "1",
                "_score": 0.2876821,
                "_source": {
                    "name": "SpringBoot",
                    "country": "china1",
                    "age": 26,
                    "date": "1992-08-08"
                }
            }
        ]
    }
}

語法查詢
指定字段：spring

postman請求：

POST 127.0.0.1:9200/book/_search

請求json字符串：

{
   "query":{
           "query_string":{
               "query":"SpringBoot OR 中國",
               "fields":["name","country"]
           }
   }
}

響應結果：

{
    "took": 11,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 1,
        "max_score": 0.8630463,
        "hits": [
            {
                "_index": "book",
                "_type": "novel",
                "_id": "1",
                "_score": 0.8630463,
                "_source": {
                    "name": "SpringBoot",
                    "country": "中國",
                    "age": 26,
                    "date": "1992-08-08"
                }
            }
        ]
    }
}

（結構化數據的查詢）json

指定字段查詢：（term）springboot

postman請求：

POST   127.0.0.1:9200/book/_search

請求json字符串：

{
    "query" : 
        {
            "term" : {"name" : "springboot"}
        }
}

響應結果：

{
    "took": 4,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 1,
        "max_score": 0.2876821,
        "hits": [
            {
                "_index": "book",
                "_type": "novel",
                "_id": "1",
                "_score": 0.2876821,
                "_source": {
                    "name": "SpringBoot",
                    "country": "中國",
                    "age": 26,
                    "date": "1992-08-08"
                }
            }
        ]
    }
}

注：若查詢英文時應全字母小寫精確查詢post

　　若查詢中文時應按單個字來查詢spa

範圍查詢：3d

注：json請求字符串中部分字段的含義code

　　range：範圍關鍵字htm

　　gte 大於等於blog

　　lte 小於等於

　　gt 大於

　　lt 小於

　　now 當前時間

postman請求：

127.0.0.1:9200/book/_search

請求json字符串：

{
    "query" : 
        {
            "range" : {
                "date" : {
                        "gte":"2017-01-01",
                        "lte":"now"
                         }
                    }
        }
}

響應結果：

{
    "took": 7,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 1,
        "max_score": 1,
        "hits": [
            {
                "_index": "book",
                "_type": "novel",
                "_id": "9",
                "_score": 1,
                "_source": {
                    "name": "ElasticSearch 入門",
                    "country": "china9",
                    "age": 28,
                    "date": "2017-08-08"
                }
            }
        ]
    }
}

Filter Context(對數據進行過濾)

postman請求：

POST  127.0.0.1:9200/book/_search

請求json字符串：

{
    "query" : {
            "bool" : {
                "filter" : {
                        "term":{
                        "age":20
                                }
                            }
                        }
              }
}

響應結果：

{
    "took": 24,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 1,
        "max_score": 0,
        "hits": [
            {
                "_index": "book",
                "_type": "novel",
                "_id": "1",
                "_score": 0,
                "_source": {
                    "name": "SpringBoot",
                    "country": "中國",
                    "age": 20,
                    "date": "1992-08-08"
                }
            }
        ]
    }
}

注： boost 固定響應結果分數的值

postman請求：

POST 127.0.0.1:9200/_search

請求json字符串：

{
    "query" : {
            "constant_score" : {
                "filter" : {
                            "match":{
                                        "name":"曉明"
                                    }
                            },
                            "boost":2
                        }
              }
}

響應結果：

{
    "took": 11,
    "timed_out": false,
    "_shards": {
        "total": 8,
        "successful": 8,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 2,
        "max_score": 2,
        "hits": [
            {
                "_index": "book",
                "_type": "novel",
                "_id": "5",
                "_score": 2,
                "_source": {
                    "name": "曉明",
                    "country": "china",
                    "age": 26,
                    "date": "1992-08-08"
                }
            },
            {
                "_index": "book",
                "_type": "novel",
                "_id": "8",
                "_score": 2,
                "_source": {
                    "name": "曉明8",
                    "country": "china",
                    "age": 26,
                    "date": "1992-08-08"
                }
            }
        ]
    }
}

should關鍵詞：或的關係

若should改成must 關鍵詞則表示和的關係

postman請求：

POST 127.0.0.1:9200/_search

請求json字符串：
　　　　1.shuld:
{
    "query" : {
            "bool" : {
                "should" : [
                            {
                                "match":{"name":"springboot"}
                            },
                            {
                                "match":{"country":"中國"}
                            }
                            ]
                        }
              }
}

　2.must:
{
    "query" : {
            "bool" : {
                "must" : [
                            {
                                "match":{"name":"springboot"}
                            },
                            {
                                "match":{"country":"中國"}
                            }
                            ]
                        }
              }
}

3.must filter:
{
    "query" : {
            "bool" : {
                "must" : [
                            {
                                "match":{"name":"springboot"}
                            },
                            {
                                "match":{"country":"中國"}
                            }
                            ],
                   "filter":[
                            {
                                "term":{
                                    "age":20
                                }
                            }    
                            ]
                        }
              }
}

4.must_not:
{
    "query" : {
            "bool" : {
                "must_not" : {
                                "term":{"age":20}
                             }
                      }
               }
}

分類: ElasticSearch

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