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基础33 ElasticSearch 手动建立和修改mapping 及 定制string类型数据是否分词

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概述

1、如何建立索引

analyzed
not_analyzed
no

2、修改mapping

只能创建index时手动建立mapping，或者新增field mapping，但是不能update field mapping

PUT /website
{
  "mappings": {
    "article": {
      "properties": {
        "author_id": {
          "type": "long"
        },
        "title": {
          "type": "text",
          "analyzer": "english"
        },
        "content": {
          "type": "text"
        },
        "post_date": {
          "type": "date"
        },
        "publisher_id": {
          "type": "text",
          "index": "not_analyzed"
        }
      }
    }
  }
}

PUT /website
{
  "mappings": {
    "article": {
      "properties": {
        "author_id": {
          "type": "text"
        }
      }
    }
  }
}

{
  "error": {
    "root_cause": [
      {
        "type": "index_already_exists_exception",
        "reason": "index [website/co1dgJ-uTYGBEEOOL8GsQQ] already exists",
        "index_uuid": "co1dgJ-uTYGBEEOOL8GsQQ",
        "index": "website"
      }
    ],
    "type": "index_already_exists_exception",
    "reason": "index [website/co1dgJ-uTYGBEEOOL8GsQQ] already exists",
    "index_uuid": "co1dgJ-uTYGBEEOOL8GsQQ",
    "index": "website"
  },
  "status": 400
}

PUT /website/_mapping/article
{
  "properties" : {
    "new_field" : {
      "type" :    "string",
      "index":    "not_analyzed"
    }
  }
}

3、测试mapping

GET /website/_analyze
{
  "field": "content",
  "text": "my-dogs" 
}

GET website/_analyze
{
  "field": "new_field",
  "text": "my dogs"
}

{
  "error": {
    "root_cause": [
      {
        "type": "remote_transport_exception",
        "reason": "[4onsTYV][127.0.0.1:9300][indices:admin/analyze[s]]"
      }
    ],
    "type": "illegal_argument_exception",
    "reason": "Can't process field [new_field], Analysis requests are only supported on tokenized fields"
  },
  "status": 400
}