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(1)使用SparkConf构建
import org.apache.spark._import org.apache.spark.streaming._val conf = new SparkConf().setAppName(appName).setMaster(master)val ssc = new StreamingContext(conf, Seconds(1))
(2)使用SparkContext构建
import org.apache.spark.streaming._val conf = new SparkConf().setAppName(appName).setMaster(master) val sc = SparkContext.getOrCreate(conf) // existing SparkContext// 或者:val sc = new SparkContext(conf) val ssc = new StreamingContext(sc, Seconds(1))
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