《Spark商业案例与性能调优实战100课》第6课：商业案例之通过Spark SQL实现大数据电影用户行为分析
package com.dt.spark.sparksql
import org.apache.spark.sql.{Row, SparkSession}
import org.apache.spark.sql.types.{StringType, StructField, StructType}
import org.apache.spark.{SparkConf, SparkContext}
import scala.collection.mutable
object Movie_Users_Analyzer_DateFrame {
def main(args: Array[String]): Unit = {
var masterUrl =
