spark--transform算子--intersection

import org.apache.spark.{SparkConf, SparkContext}

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

  def main(args: Array[String]): Unit = {
    val conf = new SparkConf().setAppName("intersection_test").setMaster("local")
    val sc = new SparkContext(conf)

    var rdd = sc.parallelize(1 to 5, 1)
    var rdd1 = sc.parallelize(4 to 7, 1)

    //intersection方法用于取两个RDD的交集
    val sum = rdd.intersection(rdd1)
      .foreach(println)
  }
}

运行结果：

4
5