以下代码适用于Spark 1.5.2,但不适用于Spark 2.0.0.我使用的是Java 1.8.
final SparkConf sparkConf = new SparkConf();
sparkConf.setMaster("local[4]"); // Four threads
final JavaSparkContext javaSparkContext = new JavaSparkContext(sparkConf);
final JavaRDD<String> javaRDDLines = javaSparkContext.textFile("4300.txt");
final JavaRDD<String> javaRDDWords = javaRDDLines.flatMap(line -> Arrays.asList(line.split(" ")));
我得到以下错误
Error:(46, 66) java: incompatible types: no instance(s) of type variable(s) T exist so that java.util.List<T> conforms to java.util.Iterator<U>
我无法确定Spark API是否已更改或其他内容.请帮忙.谢谢.