Spark java实现打印 JavaPairRDD

先读取fileName，然后再将加载的结果收集一下collect，转换成List，再打印。

Configuration configuration = new Configuration();
configuration.set("io.serializations", "org.apache.hadoop.io.serializer.WritableSerialization,org.apache.hadoop.hbase.mapreduce.ResultSerialization");
JavaPairRDD input = sc.newAPIHadoopFile(fileName, SequenceFileInputFormat.class, ImmutableBytesWritable.class, Result.class, configuration);

List, Integer>> output = input.collect()