Elasticsearch 前缀搜索、通配符搜索、正则搜索、不匹配搜索

1、构造数据

定义 mapping

PUT url_index
{
  "mappings": {
    "url_type": {
      "properties": {
        "url":{
          "type": "text"
        }
      }
    }
  }
}
# 返回结果
{
  "acknowledged": true,
  "shards_acknowledged": true,
  "index": "url_index"
}

查看 mapping

GET /url_index/_mapping/url_type
# 返回结果
{
  "url_index": {
    "mappings": {
      "url_type": {
        "properties": {
          "url": {
            "type": "text"
          }
        }
      }
    }
  }
}

插入数据

PUT /url_index/url_type/1
{
  "url": "index.js"
}

PUT /url_index/url_type/2
{
  "url": "index.jpg"
}

PUT /url_index/url_type/3
{
  "url": "jquery.js"
}

PUT /url_index/url_type/4
{
  "url": "index.png"
}

查看数据

GET /url_index/url_type/_search
# 返回结果
{
  "took": 1,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 4,
    "max_score": 1,
    "hits": [
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "2",
        "_score": 1,
        "_source": {
          "url": "index.jpg"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "4",
        "_score": 1,
        "_source": {
          "url": "index.png"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "1",
        "_score": 1,
        "_source": {
          "url": "index.js"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "3",
        "_score": 1,
        "_source": {
          "url": "jquery.js"
        }
      }
    ]
  }
}

2、前缀搜索，搜索以 index 开头的 url

GET /url_index/url_type/_search
{
  "query": {
    "prefix": {
      "url": {
        "value": "index"
      }
    }
  }
}
# 返回结果
{
  "took": 233,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 3,
    "max_score": 1,
    "hits": [
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "2",
        "_score": 1,
        "_source": {
          "url": "index.jpg"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "4",
        "_score": 1,
        "_source": {
          "url": "index.png"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "1",
        "_score": 1,
        "_source": {
          "url": "index.js"
        }
      }
    ]
  }
}

3、通配符搜索, 匹配以 .js 结尾的

GET /url_index/url_type/_search
{
  "query": {
    "wildcard": {
        "url": {
          "value": "*.js"
        }
    }
  }
}
# 返回结果
{
  "took": 30,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 2,
    "max_score": 1,
    "hits": [
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "1",
        "_score": 1,
        "_source": {
          "url": "index.js"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "3",
        "_score": 1,
        "_source": {
          "url": "jquery.js"
        }
      }
    ]
  }
}

4、正则搜索, 匹配以 .js 结尾的

GET /url_index/url_type/_search
{
  "query": {
    "regexp": {
      "url": "[a-z]+\\.js"
    }
  }
}
# 返回结果
{
  "took": 3,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 2,
    "max_score": 1,
    "hits": [
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "1",
        "_score": 1,
        "_source": {
          "url": "index.js"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "3",
        "_score": 1,
        "_source": {
          "url": "jquery.js"
        }
      }
    ]
  }
}

5、通配符不匹配搜索，不匹配以 .js 结尾的

GET /url_index/url_type/_search
{
  "query": {
    "bool": {
      "must_not": {
        "wildcard": {
          "url": {
            "value": "*.js"
          }
        }
      }
     }
    }
}

# 返回结果
{
  "took": 7,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 2,
    "max_score": 1,
    "hits": [
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "2",
        "_score": 1,
        "_source": {
          "url": "index.jpg"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "4",
        "_score": 1,
        "_source": {
          "url": "index.png"
        }
      }
    ]
  }
}

6、正则不匹配搜索，不匹配以 .js 结尾的

GET /url_index/url_type/_search
{
  "query": {
    "bool": {
      "must_not": {
        "regexp": {
          "url":
            "[a-z]+\\.js"
        }
      }
     }
    }
}
# 返回结果
{
  "took": 41,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 2,
    "max_score": 1,
    "hits": [
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "2",
        "_score": 1,
        "_source": {
          "url": "index.jpg"
        }
      },
      {
        "_index": "url_index",
        "_type": "url_type",
        "_id": "4",
        "_score": 1,
        "_source": {
          "url": "index.png"
        }
      }
    ]
  }
}