如何从scala中的案例类数组中制作数据框

Question

Say, I have : case class Rows(column: String,operation: String,result: String) I created a array buffer and stored objects of type Rows in it. How to convert this into a dataframe

Answer 1

Given a case class definition and a spark session you could use createDataFrame :

case class A(_a: String, _b: String, _c: String)

val rows: ArrayBuffer[A] = ??? //or any Seq[A]
val spark: SparkSession = ???

spark.createDataFrame(rows)