执行此命令时给我报了这个错误Exception in thread main java.lang.ClassNotFoundException
hadoop jar MapReduceDemo-1.0-SNAPSHOT.jar mapreduce.word2.WordCountDriver.java /sanguo /outputss
通过研究我发现命令的后面不能加java
hadoop jar MapReduceDemo-1.0-SNAPSHOT.jar mapreduce.word2.WordCountDriver /sanguo /outputss
运行成功
