王冬的csdn

一 、RDD转DataFrame 通过 case class 创建 DataFrames import org.apache.spark.SparkConf import org.apache.spark.SparkContext import org.apache.spark.sql.SQLContext object TestDataFrame { def main(args...

1. 构建一个scala项目 具体构建过程可参考：https://blog.youkuaiyun.com/weixin_44122028/article/details/103881508 2. 依赖配置如下 name := "SparkStreamingReadKafka" scalaVersion := "2.10.5" organization := "com.dd" //添加依赖 library...