Elastic实战自动补全

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自动补全(中文)

定义索引

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[root@icloud-store ~]# curl -XPUT "http://192.168.0.103:9200/index_test?pretty=true" -H 'Content-Type: application/json' -d'
{
    "index": {
        "number_of_shards": "1",
        "number_of_replicas": "1"
    }
}'

定义类型

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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/product/_mapping?pretty=true" -H 'Content-Type: application/json' -d'
{
  "properties": {
    "name": {
      "type": "text",
      "analyzer": "ik_smart",
      "search_analyzer": "ik_smart"
    },
    "tag": {
      "type": "text",
      "analyzer": "ik_smart",
      "search_analyzer": "ik_smart"
    },
    "tag_suggest": {
      "type": "completion",
      "analyzer": "ik_smart",
      "search_analyzer": "ik_smart"
    }
  }
}'

查看索引

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[root@icloud-store ~]# curl -XGET "http://192.168.0.103:9200/index_test?pretty=true"
{
  "index_test" : {
    "aliases" : { },
    "mappings" : {
      "product" : {
        "properties" : {
          "name" : {
            "type" : "text",
            "analyzer" : "ik_smart"
          },
          "tag" : {
            "type" : "text",
            "analyzer" : "ik_smart"
          },
          "tag_suggest" : {
            "type" : "completion",
            "analyzer" : "ik_smart",
            "preserve_separators" : true,
            "preserve_position_increments" : true,
            "max_input_length" : 50
          },
          "tagsuggest" : {
            "properties" : {
              "completion" : {
                "properties" : {
                  "field" : {
                    "type" : "text",
                    "fields" : {
                      "keyword" : {
                        "type" : "keyword",
                        "ignore_above" : 256
                      }
                    }
                  },
                  "size" : {
                    "type" : "long"
                  }
                }
              },
              "text" : {
                "type" : "text",
                "fields" : {
                  "keyword" : {
                    "type" : "keyword",
                    "ignore_above" : 256
                  }
                }
              }
            }
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1513327157579",
        "number_of_shards" : "1",
        "number_of_replicas" : "1",
        "uuid" : "QRHKXGpRSPen2l9u1zWJyw",
        "version" : {
          "created" : "6000099"
        },
        "provided_name" : "index_test"
      }
    }
  }
}

索引数据

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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/product/1?pretty=true" -H 'Content-Type: application/json' -d'{
  "name" : "花花公子男士修身冬季青年潮流羽绒服",
  "tag": "羽绒服, 青年, 潮流",
  "tag_suggest": "羽绒服, 青年, 潮流"
}'

[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/product/2?pretty=true" -H 'Content-Type: application/json' -d'{
  "name" : "波司登中老年爸爸加厚保暖男士羽绒服",
  "tag": "羽绒服, 保暖, 加厚, 中老年",
  "tag_suggest": "羽绒服, 保暖, 加厚, 中老年"
}'

[root@icloud-store ~]#  curl -XPOST "http://192.168.0.103:9200/index_test/product/3?pretty=true" -H 'Content-Type: application/json' -d'{
  "name" : "真皮进口头层牛皮立领修身中年皮夹克",
  "tag": "羽毛, 中年, 绒, 修身, 羽绒",
  "tag_suggest": "羽毛, 中年, 绒, 修身, 羽绒"
}'

搜索示例

简单自动补全示例
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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "suggest": {
        "product-suggest" : {
            "prefix" : "羽绒",
            "completion" : {
                "field" : "tag_suggest"
            }
        }
    }
}'
{
  "took" : 6,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "羽绒",
        "offset" : 0,
        "length" : 2,
        "options" : [
          {
            "text" : "羽绒服, 保暖, 加厚, 中老年",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "2",
            "_score" : 1.0,
            "_source" : {
              "name" : "波司登中老年爸爸加厚保暖男士羽绒服",
              "tag" : "羽绒服, 保暖, 加厚, 中老年",
              "tag_suggest" : "羽绒服, 保暖, 加厚, 中老年"
            }
          },
          {
            "text" : "羽绒服, 青年, 潮流",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "1",
            "_score" : 1.0,
            "_source" : {
              "name" : "花花公子男士修身冬季青年潮流羽绒服",
              "tag" : "羽绒服, 青年, 潮流",
              "tag_suggest" : "羽绒服, 青年, 潮流"
            }
          }
        ]
      }
    ]
  }
}
指定返回特定列
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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "_source": "tag_suggest",
    "suggest": {
        "product-suggest" : {
            "prefix" : "羽绒",
            "completion" : {
                "field" : "tag_suggest"
            }
        }
    }
}'
{
  "took" : 6,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "羽绒",
        "offset" : 0,
        "length" : 2,
        "options" : [
          {
            "text" : "羽绒服, 保暖, 加厚, 中老年",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "2",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 保暖, 加厚, 中老年"
            }
          },
          {
            "text" : "羽绒服, 青年, 潮流",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "1",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 青年, 潮流"
            }
          }
        ]
      }
    ]
  }
}
模糊搜索
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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "suggest": {
        "product-suggest" : {
            "text" : "羽类",
            "completion" : {
                "field" : "tag_suggest",
                "fuzzy" : {
                    "fuzziness" : 2
                }
            }
        }
    }
}'
{
  "took" : 9,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "羽类",
        "offset" : 0,
        "length" : 2,
        "options" : [
          {
            "text" : "羽绒服, 保暖, 加厚, 中老年",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "2",
            "_score" : 3.0,
            "_source" : {
              "name" : "波司登中老年爸爸加厚保暖男士羽绒服",
              "tag" : "羽绒服, 保暖, 加厚, 中老年",
              "tag_suggest" : "羽绒服, 保暖, 加厚, 中老年"
            }
          },
          {
            "text" : "羽绒服, 青年, 潮流",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "1",
            "_score" : 3.0,
            "_source" : {
              "name" : "花花公子男士修身冬季青年潮流羽绒服",
              "tag" : "羽绒服, 青年, 潮流",
              "tag_suggest" : "羽绒服, 青年, 潮流"
            }
          }
        ]
      }
    ]
  }
}
指定推荐数量
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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "_source": "tag_suggest",
    "suggest": {
        "product-suggest" : {
            "text" : "羽",
            "completion" : {
                "field" : "tag_suggest"
            }
        }
    }
}'
{
  "took" : 5,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "羽",
        "offset" : 0,
        "length" : 1,
        "options" : [
          {
            "text" : "羽毛, 中年, 绒, 修身, 羽绒",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "3",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽毛, 中年, 绒, 修身, 羽绒"
            }
          },
          {
            "text" : "羽绒服, 保暖, 加厚, 中老年",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "2",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 保暖, 加厚, 中老年"
            }
          },
          {
            "text" : "羽绒服, 青年, 潮流",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "1",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 青年, 潮流"
            }
          }
        ]
      }
    ]
  }
}


[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "_source": "tag_suggest",
    "suggest": {
        "product-suggest" : {
            "text" : "羽",
            "completion" : {
                "field" : "tag_suggest",
                "size": 2
            }
        }
    }
}'
{
  "took" : 3,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "羽",
        "offset" : 0,
        "length" : 1,
        "options" : [
          {
            "text" : "羽毛, 中年, 绒, 修身, 羽绒",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "3",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽毛, 中年, 绒, 修身, 羽绒"
            }
          },
          {
            "text" : "羽绒服, 保暖, 加厚, 中老年",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "2",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 保暖, 加厚, 中老年"
            }
          }
        ]
      }
    ]
  }
}

拼音搜索推荐

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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "_source": "tag_suggest",
    "suggest": {
        "product-suggest" : {
            "text" : "yu",
            "completion" : {
                "field" : "tag_suggest",
                "size": 2
            }
        }
    }
}' 
{
  "took" : 2,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "yu",
        "offset" : 0,
        "length" : 2,
        "options" : [ ]
      }
    ]
  }
}

可以看到拼音搜索并不能得到友好的推荐词,所以需要结合拼音分词进行再一次优化.

自动补全(中文+拼音)

删除索引

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[root@icloud-store ~]# curl -XDELETE "http://192.168.0.103:9200/index_test*?pretty=true"

定义索引

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[elon@icloud-store elasticsearch-6.0.0]$ curl -XPUT "http://192.168.0.103:9200/index_test?pretty=true" -H 'Content-Type: application/json' -d'
{ 
    "index" : {
        "analysis": {
              "analyzer": {
                "default" : {
                   "tokenizer" : "ik_smart"
                },
                "ik_pinyin_analyzer": {
                  "tokenizer": "ik_smart",
                  "filter": [
                    "mix_pinyin",
                    "word_delimiter"
                  ]
                }
              },
              "filter": {
                "mix_pinyin": {
                  "type": "pinyin",
                  "keep_full_pinyin" : true,
                  "lowercase" : true,
                  "first_letter": "prefix",
                  "padding_char": " "
                }
              }
        }
    },
    "number_of_shards": "3",
    "number_of_replicas": "1"
}'

定义类型

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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/product/_mapping?pretty=true" -H 'Content-Type: application/json' -d'
{
  "properties": {
    "name": {
      "type": "text",
      "analyzer": "ik_smart",
      "search_analyzer": "ik_smart"
    },
    "tag": {
      "type": "text",
      "analyzer": "ik_smart",
      "search_analyzer": "ik_smart"
    },
    "tag_suggest": {
      "type": "completion",
      "analyzer": "ik_pinyin_analyzer",
      "search_analyzer": "ik_pinyin_analyzer",
      "preserve_separators": false
    }
  }
}'

创建索引

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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/product/1?pretty=true" -H 'Content-Type: application/json' -d'{
  "name" : "花花公子男士修身冬季青年潮流羽绒服",
  "tag": "羽绒服, 青年, 潮流",
  "tag_suggest": "羽绒服, 青年, 潮流"
}'

[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/product/2?pretty=true" -H 'Content-Type: application/json' -d'{
  "name" : "波司登中老年爸爸加厚保暖男士羽绒服",
  "tag": "羽绒服, 保暖, 加厚, 中老年",
  "tag_suggest": "羽绒服, 保暖, 加厚, 中老年"
}'

[root@icloud-store ~]#  curl -XPOST "http://192.168.0.103:9200/index_test/product/3?pretty=true" -H 'Content-Type: application/json' -d'{
  "name" : "真皮进口头层牛皮立领修身中年皮夹克",
  "tag": "羽毛, 中年, 绒, 修身, 羽绒",
  "tag_suggest": "羽毛, 中年, 绒, 修身, 羽绒"
}'

补全搜索(拼音)

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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "_source": "tag_suggest",
    "suggest": {
        "product-suggest" : {
            "text" : "yumao",
            "completion" : {
                "field" : "tag_suggest",
                "size": 5
            }
        }
    }
}' 
{
  "took" : 17,
  "timed_out" : false,
  "_shards" : {
    "total" : 3,
    "successful" : 3,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "yumao",
        "offset" : 0,
        "length" : 5,
        "options" : [
          {
            "text" : "羽毛, 中年, 绒, 修身, 羽绒",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "3",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽毛, 中年, 绒, 修身, 羽绒"
            }
          }
        ]
      }
    ]
  }
}

模糊搜索(拼音)

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[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "_source": "tag_suggest",
    "suggest": {
        "product-suggest" : {
            "text" : "yumao",
            "completion" : {
                "field" : "tag_suggest",
                "fuzzy" : {
                    "fuzziness" : 2
                },
                "size": 5
            }
        }
    }
}' 
{
  "took" : 18,
  "timed_out" : false,
  "_shards" : {
    "total" : 3,
    "successful" : 3,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "yumao",
        "offset" : 0,
        "length" : 5,
        "options" : [
          {
            "text" : "羽毛, 中年, 绒, 修身, 羽绒",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "3",
            "_score" : 3.0,
            "_source" : {
              "tag_suggest" : "羽毛, 中年, 绒, 修身, 羽绒"
            }
          },
          {
            "text" : "羽绒服, 保暖, 加厚, 中老年",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "2",
            "_score" : 2.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 保暖, 加厚, 中老年"
            }
          },
          {
            "text" : "羽绒服, 青年, 潮流",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "1",
            "_score" : 2.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 青年, 潮流"
            }
          }
        ]
      }
    ]
  }
}

[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "_source": "tag_suggest",
    "suggest": {
        "product-suggest" : {
            "text" : "yu毛",
            "completion" : {
                "field" : "tag_suggest",
                "fuzzy" : {
                    "fuzziness" : 2
                },
                "size": 5
            }
        }
    }
}' 
{
  "took" : 11,
  "timed_out" : false,
  "_shards" : {
    "total" : 3,
    "successful" : 3,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "yu毛",
        "offset" : 0,
        "length" : 3,
        "options" : [
          {
            "text" : "羽毛, 中年, 绒, 修身, 羽绒",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "3",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽毛, 中年, 绒, 修身, 羽绒"
            }
          },
          {
            "text" : "羽绒服, 保暖, 加厚, 中老年",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "2",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 保暖, 加厚, 中老年"
            }
          },
          {
            "text" : "羽绒服, 青年, 潮流",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "1",
            "_score" : 1.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 青年, 潮流"
            }
          }
        ]
      }
    ]
  }
}

[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "_source": "tag_suggest",
    "suggest": {
        "product-suggest" : {
            "text" : "羽毛",
            "completion" : {
                "field" : "tag_suggest",
                "fuzzy" : {
                    "fuzziness" : 2
                },
                "size": 5
            }
        }
    }
}' 
{
  "took" : 13,
  "timed_out" : false,
  "_shards" : {
    "total" : 3,
    "successful" : 3,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 0,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "suggest" : {
    "product-suggest" : [
      {
        "text" : "羽毛",
        "offset" : 0,
        "length" : 2,
        "options" : [
          {
            "text" : "羽毛, 中年, 绒, 修身, 羽绒",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "3",
            "_score" : 3.0,
            "_source" : {
              "tag_suggest" : "羽毛, 中年, 绒, 修身, 羽绒"
            }
          },
          {
            "text" : "羽绒服, 保暖, 加厚, 中老年",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "2",
            "_score" : 2.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 保暖, 加厚, 中老年"
            }
          },
          {
            "text" : "羽绒服, 青年, 潮流",
            "_index" : "index_test",
            "_type" : "product",
            "_id" : "1",
            "_score" : 2.0,
            "_source" : {
              "tag_suggest" : "羽绒服, 青年, 潮流"
            }
          }
        ]
      }
    ]
  }
}

[root@icloud-store ~]# curl -XPOST "http://192.168.0.103:9200/index_test/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "suggest": {
        "product-suggest" : {
            "text" : "yu毛",
            "completion": {
                "field": "tag_suggest",
                "highlight": {
                  "pre_tag": "<em>",
                  "post_tag": "</em>"
                },
                "size": 5
            }
        }
    }
}'