spark--actions算子--saveAsTextFile

import org.apache.hadoop.io.compress.GzipCodec
import org.apache.spark.{SparkConf, SparkContext}

/**
  * Created by liupeng on 2017/6/16.
  */
object A_saveAsTextFile {
  System.setProperty("hadoop.home.dir","F:\\hadoop-2.6.5")

  def main(args: Array[String]): Unit = {
    val conf = new SparkConf().setAppName("saveAsTextFile_test").setMaster("local")
    val sc = new SparkContext(conf)
    //准备一下数据
    val nameList: List[String] = List("c", "d", "a", "e", "f", "k")
    val numbers = sc.parallelize(nameList)
    //将数据集作为文本文件保存到指定的文件系统、hdfs、或者hadoop支持的其他文件系统中
    numbers.saveAsTextFile("test_data_save")
    numbers.saveAsTextFile("test_data_save2", classOf[GzipCodec])
  }
}

运行结果生成为两个目录：