elasticsearch - Elasticsearch无法使用lang groovy运行内联脚本[doc…]

Question

尝试匹配索引中的所有索引并显示给定geo_point与查询结果之间的距离时出现此错误，我使用DrTech's答案来显示脚本距离:

这是我的DSL查询:

{
  "query": {
    "match_all": {}
  },
  "script_fields": {
    "distance": {
      "lang": "groovy",
      "params": {
        "lat": 2.27,
        "lon": 50.3
      },
      "script": "doc['geo_coordinates'].distanceInKm(lat,lon)"
    }
  }
}

查询响应:

{
  "took": 50,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 4,
    "failed": 1,
    "failures": [
      {
        "shard": 0,
        "index": "users",
        "node": "pa76fjdWQl2YAHmgCT4oKw",
        "reason": {
          "type": "script_exception",
          "reason": "failed to run inline script [doc['geo_coordinates'].distanceInKm(lat,lon)] using lang [groovy]",
          "caused_by": {
            "type": "null_pointer_exception",
            "reason": null
          }
        }
      }
    ]
  },
  "hits": {
    "total": 184,
    "max_score": 1,
    "hits": []
  }

我在映射中有这个:

  "geo_coordinates" : {
            "type" : "geo_point",
            "lat_lon" : true
          },

所以我不明白为什么我得到了一个空指针! .....

Answer 1

可能是因为其中一个文档在geo_coordinates字段中没有任何值。因此，您需要在脚本中考虑这种情况。

尝试以下方法:

{
  "query": {
    "match_all": {}
  },
  "script_fields": {
    "distance": {
      "lang": "groovy",
      "params": {
        "lat": 2.27,
        "lon": 50.3
      },
      "script": "doc['geo_coordinates'] ? doc['geo_coordinates'].distanceInKm(lat,lon) : 0"
    }
  }
}