neo_lcx的博客

#SPARK 求最大值 def top(): Unit ={ val sc = SparkUtil.sparkLocal() sc.setLogLevel("DEBUG") val data = sc.textFile("",1) data.flatMap{line=> line.split(",") }.filter(line=> (line.trim().length)>0) .map(x=>(x,1

SPARK求最大值最小值 def maxMinValues: RDD[(Int,Int)] ={ val sc = SparkUtil.sparkLocal() sc.setLogLevel("DEBUG") val data = sc.textFile("",1) val num =data.flatMap{line=> line.split(",") }.filter(x=>x.trim().length>0).map(x=&gt