Question

我有自动完成设置w / jquery ajax并且只想返回特定字段，而不是整个响应。我有：

curl -X POST 'localhost:9200/music/_suggest?pretty' -d '{
    "song-suggest" : {
        "text" : "n",
        "completion" : {
            "fields" : ["suggest"],
            "field" : "suggest"
        }
    }
}'

我收到错误：

{
   "_shards":{
      "total":5,
      "successful":0,
      "failed":5,
      "failures":[
         {
            "index":"music",
            "shard":3,
            "reason":"BroadcastShardOperationFailedException[[music][3] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[[suggest] does not support [fields]]; "
         },
         {
            "index":"music",
            "shard":4,
            "reason":"BroadcastShardOperationFailedException[[music][4] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[[suggest] does not support [fields]]; "
         },
         {
            "index":"music",
            "shard":1,
            "reason":"BroadcastShardOperationFailedException[[music][1] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[[suggest] does not support [fields]]; "
         },
         {
            "index":"music",
            "shard":2,
            "reason":"BroadcastShardOperationFailedException[[music][2] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[[suggest] does not support [fields]]; "
         },
         {
            "index":"music",
            "shard":0,
            "reason":"BroadcastShardOperationFailedException[[music][0] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[[suggest] does not support [fields]]; "
         }
      ]
   }
}

我显然做错了什么，无法弄清楚如何正确地得到结果。（我还应该提到我是弹性搜索的新手。）

编辑：我在nginx后面运行了弹性搜索，所以如果在nginx中有一个解决方案只能获得＆＃34;建议＆＃34;可接受的领域。

编辑＃2：我的映射

{
   "song":{
      "properties":{
         "suggest":{
            "type":"completion"
         }
      }
   }
}

编辑＃3：

退出＆＃34;字段＆＃34;参数给出：

{
  "_shards": {
    "total": 5,
    "successful": 5,
    "failed": 0
  },
  "s": [
    {
      "text": "Kate",
      "offset": 0,
      "length": 4,
      "options": [
        {
          "text": "Kate Bush",
          "score": 1.0
        },
        {
          "text": "Kate Middleton",
          "score": 1.0
        }
      ]
    }
  ]
}

最终用户不需要查看＆＃34; _shards＆＃34;也不是原始查询。理想情况下，返回类似：

[
  {
    "text": "Kate Bush"
  },
  {
    "text": "Kate Middleton"
  }
]

编辑＃4：

Victor的建议会返回以下错误：

{
  "_shards": {
    "total": 5,
    "successful": 0,
    "failed": 5,
    "failures": [
      {
        "index": "music",
        "shard": 1,
        "reason": "BroadcastShardOperationFailedException[[music][1] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[Suggester[query_string] not supported]; "
      },
      {
        "index": "music",
        "shard": 0,
        "reason": "BroadcastShardOperationFailedException[[music][0] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[Suggester[query_string] not supported]; "
      },
      {
        "index": "music",
        "shard": 2,
        "reason": "BroadcastShardOperationFailedException[[music][2] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[Suggester[query_string] not supported]; "
      },
      {
        "index": "music",
        "shard": 3,
        "reason": "BroadcastShardOperationFailedException[[music][3] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[Suggester[query_string] not supported]; "
      },
      {
        "index": "music",
        "shard": 4,
        "reason": "BroadcastShardOperationFailedException[[music][4] ]; nested: ElasticsearchException[failed to execute suggest]; nested: ElasticsearchIllegalArgumentException[Suggester[query_string] not supported]; "
      }
    ]
  }
}

Answer 1

要使自动完成工作，您可以使用“前缀”搜索与

之类的通配符

{
    //query with wildcard to perform prefix search
    "query":{"query_string" : {
        "default_field" : "my_field",
        "query" : "search_prefix*"
    }},   
    //return field "my_field" and not the whole document  
    "fields":["my_field"]
}

Elasticsearch旨在返回这个奇怪的对象，并且可以通过服务器端代码来获取实际的自动完成数组，该代码请求弹性搜索并为您转换结果; b）只使用您感兴趣的字段，而不是查看其他字段。

Elasticsearch - 仅返回自动完成的特定字段

1 个答案: