package com.sev7e0.wow.sql import org.apache.spark.sql.SparkSession /** * @program: wow-spark * @description: * @author: Lijiaqi * @create: 2019-01-02 23:57 **/ object A_2_DataSetTest { case class Person( name: String, age: Int) def main(args: Array[String]): Unit = { val sparkSession = SparkSession.builder().appName("DataSetTest") .master("local") .getOrCreate() import sparkSession.implicits._ val dataSet= Seq(Person("lee",18)).toDS() dataSet.show() val frame = Seq(1,5,7).toDS() val inns = frame.map(_ + 1).collect() inns.foreach(print(_)) } }