如何使用Map对象列表创建Spark SQL Dataframe

import org.apache.spark.sql.{SparkSession, Row}
import org.apache.spark.sql.types.{StructType, StructField, StringType, IntegerType}

val spark = SparkSession.builder()
    .appName("Create Dataframe from Map Object List")
    .getOrCreate()

val schema = StructType(Seq(
    StructField("name", StringType, nullable = false),
    StructField("age", IntegerType, nullable = false)
))

val mapList = List(
    Map("name" -> "John", "age" -> 25),
    Map("name" -> "Jane", "age" -> 30),
    Map("name" -> "Tom", "age" -> 35)
)

val rowList = mapList.map(map => Row(map("name"), map("age")))

val dataframe = spark.createDataFrame(rowList, schema)