query string search

  1. GET /ecommerce/product/_search
  3. // 返回结果
  4. {
  5.   "took": 31, // 耗费了31ms
  6.   "timed_out": false, // 是否超时
  7.   "_shards": {
  8.     "total": 5, 
  9.     "successful": 5,
  10.     "failed": 0
  11.   },
  12.   "hits": {
  13.     "total": 2, // 查询结果数量
  14.     "max_score": 1, // score就是document对于一个search的相关度的匹配分数，匹配度越高，分数越高
  15.     "hits": [ // 匹配了搜索的详细分数
  16.       {
  17.         "_index": "ecommerce",
  18.         "_type": "product",
  19.         "_id": "2",
  20.         "_score": 1,
  21.         "_source": {
  22.           "name": "jiajieshi yagao",
  23.           "desc": "youxiao fangzhu",
  24.           "price": 25,
  25.           "producer": "jiajieshi producer",
  26.           "tags": [
  27.             "fangzhu"
  28.           ]
  29.         }
  30.       },
  31.       {
  32.         "_index": "ecommerce",
  33.         "_type": "product",
  34.         "_id": "3",
  35.         "_score": 1,
  36.         "_source": {
  37.           "name": "zhonghua yagao",
  38.           "desc": "qingxinkouqi",
  39.           "price": 40,
  40.           "producer": "zhonghua producer",
  41.           "tags": [
  42.             "qingxin"
  43.           ]
  44.         }
  45.       }
  46.     ]
  47.   }
  48. }
  1. GET /ecommerce/product/_search?q=name:yagao&sort=price:desc
  3. // 返回结果
  4. {
  5.   "took": 2,
  6.   "timed_out": false,
  7.   "_shards": {
  8.     "total": 5,
  9.     "successful": 5,
  10.     "failed": 0
  11.   },
  12.   "hits": {
  13.     "total": 2,
  14.     "max_score": null,
  15.     "hits": [
  16.       {
  17.         "_index": "ecommerce",
  18.         "_type": "product",
  19.         "_id": "3",
  20.         "_score": null,
  21.         "_source": {
  22.           "name": "zhonghua yagao",
  23.           "desc": "qingxinkouqi",
  24.           "price": 40,
  25.           "producer": "zhonghua producer",
  26.           "tags": [
  27.             "qingxin"
  28.           ]
  29.         },
  30.         "sort": [
  31.           40
  32.         ]
  33.       },
  34.       {
  35.         "_index": "ecommerce",
  36.         "_type": "product",
  37.         "_id": "2",
  38.         "_score": null,
  39.         "_source": {
  40.           "name": "jiajieshi yagao",
  41.           "desc": "youxiao fangzhu",
  42.           "price": 25,
  43.           "producer": "jiajieshi producer",
  44.           "tags": [
  45.             "fangzhu"
  46.           ]
  47.         },
  48.         "sort": [
  49.           25
  50.         ]
  51.       }
  52.     ]
  53.   }
  54. }

生产中一般不用，构建不好维护

query DSL

DSL：domain specified language

查询所有商品

  1. // 查询所有商品
  2. GET /ecommerce/product/_search
  3. {
  4.   "query": {
  5.     "match_all": {}
  6.   }
  7. }

根据名称查询并且按照价格排序

  1. GET /ecommerce/product/_search
  2. {
  3.   "query": {
  4.     "match": {
  5.       "name": "yagao"
  6.     }
  7.   },
  8.   "sort": [
  9.     {
  10.       "price": {
  11.         "order": "asc"
  12.       }
  13.     }
  14.   ]
  15. }

分页查询

  1. GET /ecommerce/product/_search
  2. {
  3.   "query": {
  4.     "match_all": {}
  5.   },
  6.   "from": 0, // 从哪一条开始查
  7.   "size": 1  // 查询多少条
  8. }

只查询部分字段

  1. GET /ecommerce/product/_search
  2. {
  3.   "query": {
  4.     "match_all": {}
  5.   },
  6.   "_source": ["name"]
  7. }

复杂查询条件 query filter

  1. GET /ecommerce/product/_search
  2. {
  3.   "query": {
  4.     "bool": {
  5.       "must": {
  6.         "match": {
  7.           "name": "yagao"
  8.         }
  9.       },
  10.       "filter": {
  11.         "range": {
  12.           "price": {
  13.             "gt": 30
  14.           }
  15.         }
  16.       }
  17.     }
  18.   }
  19. }

全文检索

分数反应了分数

  1. GET /ecommerce/product/_search
  2. {
  3.   "query": {
  4.     "match": {
  5.       "producer": "gaolujie producer"
  6.     }
  7.   }
  8. }
  10. // 返回结果
  11. {
  12.   "took": 3,
  13.   "timed_out": false,
  14.   "_shards": {
  15.     "total": 5,
  16.     "successful": 5,
  17.     "failed": 0
  18.   },
  19.   "hits": {
  20.     "total": 4,
  21.     "max_score": 0.51623213,
  22.     "hits": [
  23.       {
  24.         "_index": "ecommerce",
  25.         "_type": "product",
  26.         "_id": "1",
  27.         "_score": 0.51623213,
  28.         "_source": {
  29.           "name": "gaolujie yagao",
  30.           "desc": "gaoxiao meibai",
  31.           "price": 30,
  32.           "producer": "gaolujie producer",
  33.           "tags": [
  34.             "meibai",
  35.             "fangzhu"
  36.           ]
  37.         }
  38.       },
  39.       {
  40.         "_index": "ecommerce",
  41.         "_type": "product",
  42.         "_id": "3",
  43.         "_score": 0.25811607,
  44.         "_source": {
  45.           "name": "heiren yagao",
  46.           "desc": "hei",
  47.           "price": 38,
  48.           "producer": "heiren producer",
  49.           "tags": [
  50.             "hei"
  51.           ]
  52.         }
  53.       },
  54.       {
  55.         "_index": "ecommerce",
  56.         "_type": "product",
  57.         "_id": "2",
  58.         "_score": 0.16358379,
  59.         "_source": {
  60.           "name": "jiajieshi yagao",
  61.           "desc": "youxiao fangzhu",
  62.           "price": 25,
  63.           "producer": "jiajieshi producer",
  64.           "tags": [
  65.             "fangzhu"
  66.           ]
  67.         }
  68.       },
  69.       {
  70.         "_index": "ecommerce",
  71.         "_type": "product",
  72.         "_id": "4",
  73.         "_score": 0.16358379,
  74.         "_source": {
  75.           "name": "heiren yagao",
  76.           "desc": "hei",
  77.           "price": 38,
  78.           "producer": "heiren producer",
  79.           "tags": [
  80.             "hei"
  81.           ]
  82.         }
  83.       }
  84.     ]
  85.   }
  86. }

短语搜索

不会对查询条件进行分词

  1. GET /ecommerce/product/_search
  2. {
  3.   "query": {
  4.     "match_phrase": {
  5.       "producer": "gaolujie"
  6.     }
  7.   }
  8. }
  10. // 返回结果
  11. {
  12.   "took": 1,
  13.   "timed_out": false,
  14.   "_shards": {
  15.     "total": 5,
  16.     "successful": 5,
  17.     "failed": 0
  18.   },
  19.   "hits": {
  20.     "total": 1,
  21.     "max_score": 0.25811607,
  22.     "hits": [
  23.       {
  24.         "_index": "ecommerce",
  25.         "_type": "product",
  26.         "_id": "1",
  27.         "_score": 0.25811607,
  28.         "_source": {
  29.           "name": "gaolujie yagao",
  30.           "desc": "gaoxiao meibai",
  31.           "price": 30,
  32.           "producer": "gaolujie producer",
  33.           "tags": [
  34.             "meibai",
  35.             "fangzhu"
  36.           ]
  37.         }
  38.       }
  39.     ]
  40.   }
  41. }

高亮搜索结果

  1. GET /ecommerce/product/_search
  2. {
  3.   "query": {
  4.     "match": {
  5.       "producer": "producer"
  6.     }
  7.   },
  8.   "highlight": {
  9.     "fields": {
  10.       "producer": {}
  11.     }
  12.   }
  13. }
  15. // 返回结果
  16. {
  17.   "took": 7,
  18.   "timed_out": false,
  19.   "_shards": {
  20.     "total": 5,
  21.     "successful": 5,
  22.     "failed": 0
  23.   },
  24.   "hits": {
  25.     "total": 4,
  26.     "max_score": 0.25811607,
  27.     "hits": [
  28.       {
  29.         "_index": "ecommerce",
  30.         "_type": "product",
  31.         "_id": "1",
  32.         "_score": 0.25811607,
  33.         "_source": {
  34.           "name": "gaolujie yagao",
  35.           "desc": "gaoxiao meibai",
  36.           "price": 30,
  37.           "producer": "gaolujie producer",
  38.           "tags": [
  39.             "meibai",
  40.             "fangzhu"
  41.           ]
  42.         },
  43.         "highlight": {
  44.           "producer": [
  45.             "gaolujie <em>producer</em>"
  46.           ]
  47.         }
  48.       },
  49.       {
  50.         "_index": "ecommerce",
  51.         "_type": "product",
  52.         "_id": "3",
  53.         "_score": 0.25811607,
  54.         "_source": {
  55.           "name": "heiren yagao",
  56.           "desc": "hei",
  57.           "price": 38,
  58.           "producer": "heiren producer",
  59.           "tags": [
  60.             "hei"
  61.           ]
  62.         },
  63.         "highlight": {
  64.           "producer": [
  65.             "heiren <em>producer</em>"
  66.           ]
  67.         }
  68.       },
  69.       {
  70.         "_index": "ecommerce",
  71.         "_type": "product",
  72.         "_id": "2",
  73.         "_score": 0.16358379,
  74.         "_source": {
  75.           "name": "jiajieshi yagao",
  76.           "desc": "youxiao fangzhu",
  77.           "price": 25,
  78.           "producer": "jiajieshi producer",
  79.           "tags": [
  80.             "fangzhu"
  81.           ]
  82.         },
  83.         "highlight": {
  84.           "producer": [
  85.             "jiajieshi <em>producer</em>"
  86.           ]
  87.         }
  88.       },
  89.       {
  90.         "_index": "ecommerce",
  91.         "_type": "product",
  92.         "_id": "4",
  93.         "_score": 0.16358379,
  94.         "_source": {
  95.           "name": "heiren yagao",
  96.           "desc": "hei",
  97.           "price": 38,
  98.           "producer": "heiren producer",
  99.           "tags": [
  100.             "hei"
  101.           ]
  102.         },
  103.         "highlight": {
  104.           "producer": [
  105.             "heiren <em>producer</em>"
  106.           ]
  107.         }
  108.       }
  109.     ]
  110.   }
  111. }