Caused by: java.lang.ClassNotFoundException: org.apache.spark.streaming.kafka.KafkaUtils
org.apache.spark.streaming.kafka.KafkaUtils
你没有引入这个包啊，这个包名应该是
org.apache.spark
spark-streaming-kafka_2.10
1.6.1
版本自己选择，可以去maven 下载
http://mvnrepository.com/artifact/org.apache.spark/spark-streaming-kafka_2.10