模板主要用來自動創(chuàng)建index，比如每天一個index 便于數(shù)據(jù)清理
創(chuàng)建模板語法：

PUT /_template/article_rowkey_data 
{
    "order": 0,
    "template": "article_rowkey_data-*",
    "settings": {
      "index": {
        "number_of_shards": "2",
        "number_of_replicas": "1"
      }
    },
    "mappings": {
      "rd": {
        "_all": {
          "analyzer": "ik_smart",
          "search_analyzer": "ik_smart",
          "term_vector": "with_positions_offsets",
          "store": "false"
        },
        "dynamic_templates": [
          {
            "strings": {
              "match_mapping_type": "string",
              "mapping": {
                "ignore_above": 2048,
                "type": "keyword"
              }
            }
          }
        ],
        "properties": {
          "f_date": {
            "type": "date",
            "format": "yyyyMMdd"
          }
        }
      }
    },
    "aliases": {
      "article_rowkey_data": {}
    }
}

POST /article_rowkey_data-20191113/rd/
{
    "f_date" :  "20191113",
    "last_name" :   "Smith",
    "age" :         32,
    "about" :       "I like to collect rock albums"
}

POST /article_rowkey_data-20191114/rd/
{
    "f_date" :  "20191114",
    "last_name" :   "Smith2",
    "age" :         32,
    "about" :       "I like to collect rock albums"
}

GET /article_rowkey_data-*/rd/_search

{
  "took": 1,
  "timed_out": false,
  "_shards": {
    "total": 4,
    "successful": 4,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 2,
    "max_score": 1,
    "hits": [
      {
        "_index": "article_rowkey_data-20191113",
        "_type": "rd",
        "_id": "krwRbm4BhjlOtBpWgl6S",
        "_score": 1,
        "_source": {
          "f_date": "20191113",
          "last_name": "Smith",
          "age": 32,
          "about": "I like to collect rock albums"
        }
      },
      {
        "_index": "article_rowkey_data-20191114",
        "_type": "rd",
        "_id": "1IQRbm4BIsqYYEXnR8TE",
        "_score": 1,
        "_source": {
          "f_date": "20191114",
          "last_name": "Smith",
          "age": 32,
          "about": "I like to collect rock albums"
        }
      }
    ]
  }
}