[英]Case Class in scala for nested JSON
SCALA 斯卡拉
My nested JSON appeared as given below. 我的嵌套JSON如下所示。
{"event":"movie","on":"bollywood","reldate":"2019-06-01T18:20:00.560Z","data":{"id":"4965-81dc-4ef","location":{"ratioin":52.48077,"ratioout":13.42499,"reldate":"2019-06-01T18:20:00.560Z"}},"mov_id":"org-id"}
I have written a case class as given below. 我已经编写了一个案例类,如下所示。
import org.apache.spark.sql.SparkSession
import spray.json.DefaultJsonProtocol
import spray.json._
import spark.implicits._
case class Activity(
event: string,
on :string,
reldate :string,
data: array[1],
location: array[2],
mov: string,
)
but this is throwing error. 但这会引发错误。
can someone please help me. 有人可以帮帮我吗。
You need to create nested classes that match the nested JSON, something like this: 您需要创建与嵌套JSON匹配的嵌套类,如下所示:
case class Activity(
event: String,
on: String,
reldate: String,
data: ActivityData,
mov_id: String,
)
case class ActivityData(
id: String,
location: ActivityLocation
)
case class ActivityLocation(
ratioin: Double,
ratiouut: Double,
reldate: String
)
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