spark dataframe学习记录_spark dataframe 输出到windows-CSDN博客

网站介绍:文章浏览阅读278次。文本数据id,name,balance1,Alice,1002,Bob,2003,Charlie,3004,Denis,4005,Edith,500定义case class, 参数名即为表的列名case class Account(id: Int, name: String, balance: Double)从hdfs上的文本创建rddval rdd = sc.textFi..._spark dataframe 输出到windows