spark action之saveastextfile

java

 1 /** 
 2  *saveastextfile 把rdd中的数据保存到文件中,只能指定文件夹
 3  *@author Tele
 4  *
 5  */
 6 public class SaveasTextFileDemo1 {
 7     private static SparkConf conf = new SparkConf().setMaster("local").setAppName("saveastextfiledemo1");
 8     private static JavaSparkContext jsc = new JavaSparkContext(conf);
 9 
10     public static void main(String[] args) {
11         List<Tuple2<String,Integer>> list = Arrays.asList(
12                 new Tuple2<String,Integer>("tele",100),
13                 new Tuple2<String,Integer>("tele",200),
14                 new Tuple2<String,Integer>("tele",300),
15                 new Tuple2<String,Integer>("yeye",50),
16                 new Tuple2<String,Integer>("yeye",10),
17                 new Tuple2<String,Integer>("yeye",70),
18                 new Tuple2<String,Integer>("wyc",10000)
19                  );
20 
21         JavaPairRDD<String, Integer> rdd = jsc.parallelizePairs(list);
22         
23         //保存到本地
24         rdd.saveAsTextFile("./src/main/resources/local");
25         jsc.close();
26     }    
27 }

scala

 1 object SaveasTextFileDemo {
 2     def main(args: Array[String]): Unit = {
 3       val conf = new SparkConf().setMaster("local").setAppName("saveastextfiledemo");
 4       val sc = new SparkContext(conf);
 5       
 6       val arr = Array(("class1","tele"),("class1","yeye"),("class2","wyc"));
 7     
 8       val rdd = sc.parallelize(arr,1);
 9       
10       rdd.saveAsTextFile("./src/main/resources/myfile")
11       
12     }
13 }