Shulou(Shulou.com)06/01 Report--

Editor to share with you how Spark-SQL reflects the header when reading JSON files. I hope you will get something after reading this article. Let's discuss it together.

When Spark-SQL reads JSON files, the reflection header case class StudentInfo (id:Long,name:String,age:Int) val example = spark.read.json ("/ data/result.json") .as (StudentInfo) example.show () has finished reading this article. I believe you have some understanding of "how Spark-SQL reads JSON files when reflecting headers". If you want to know more about it, welcome to follow the industry information channel, thank you for reading!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.