如何基于case类动态重命名Spark DF中的列

import org.apache.spark.sql.{DataFrame, SparkSession}
import org.apache.spark.sql.functions._

val spark = SparkSession.builder().appName("Dynamic Column Rename").getOrCreate()

case class ColumnRename(oldName: String, newName: String)

def renameColumns(df: DataFrame, renameList: List[ColumnRename]): DataFrame = {
  var renamedDF = df
  for (rename <- renameList) {
    renamedDF = renamedDF.withColumnRenamed(rename.oldName, rename.newName)
  }
  renamedDF
}

val df = spark.createDataFrame(Seq(
  (1, "John", 25),
  (2, "Jane", 30),
  (3, "Mike", 35)
)).toDF("id", "name", "age")

val renameList = List(
  ColumnRename("id", "ID"),
  ColumnRename("name", "Full Name"),
  ColumnRename("age", "Age")
)

val renamedDF = renameColumns(df, renameList)

renamedDF.show()