Elasticsearch 一些命令汇总 以及学习总结

es 一些记录 以及学习总结

1 安装IK 分词
/usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.4.0/elasticsearch-analysis-ik-6.4.0.zip
注意：要指定对应的es版本的分词插件
2 创建索引 相当于创建数据库
  curl -XPUT http://localhost:9200/products?pretty
3 建立索引文档 类似数据的字段吧
  curl -H'Content-Type: application/json' -XPUT http://localhost:9200/products/_mapping/_doc?pretty -d'{
  "properties": {
    "type": { "type": "keyword" } ,
    "title": { "type": "text", "analyzer": "ik_smart" },
    "long_title": { "type": "text", "analyzer": "ik_smart" },
    "category_id": { "type": "integer" },
    "category": { "type": "keyword" },
    "category_path": { "type": "keyword" },
    "description": { "type": "text", "analyzer": "ik_smart" },
    "price": { "type": "scaled_float", "scaling_factor": 100 },
    "on_sale": { "type": "boolean" },
    "rating": { "type": "float" },
    "sold_count": { "type": "integer" },
    "review_count": { "type": "integer" },
    "skus": {
      "type": "nested",
      "properties": {
        "title": { "type": "text", "analyzer": "ik_smart", "copy_to": "skus_title" },
        "description": { "type": "text", "analyzer": "ik_smart", "copy_to": "skus_description" },
        "price": { "type": "scaled_float", "scaling_factor": 100 }
      }
    },
    "properties": {
      "type": "nested",
      "properties": {
        "name": { "type": "keyword" },
        "value": { "type": "keyword", "copy_to": "properties_value" },
        "search_value": { "type": "keyword" }
      }
    }
  }
}'
注意事项：
1 nested 代表创建复杂数据 
2 copy_to 主要做查询的特定映射的数据

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