1.將louts.txt文件從cg計算機復制到master節點上面，存放在/usr/local/hadoop ? 需要輸入密碼：83953588abc
scp /root/IdeaProjects/mapReduceTest/lotus.txt root@172.18.0.2:/usr/local/hadoop /WordCountTest/input
?2.將lotus.txt文件從master這臺機器上傳到hdfs的系統里面
hadoop fs -put /usr/local/hadoop/lotus.txt /WordCountTest/input
3.修改pom.xml文件
將packaging從war修改成jar
這里需要重新加載一下maven
4.使用maven打包
5.上傳生成的jar包從cg機器上傳到master上面
scp /root/IdeaProjects/mapReduceTest/target/mapReduceTest.jar root@172.18.0.2:/usr/local/hadoop
6.執行jar包
hadoop jar jar名字 驅動文件（一般包含main方法）輸入路徑 ?輸出路徑
具體例子如下：
hadoop jar mapReduceTest.jar WordCountDriver /WordCountTest/input /WordCountTest/output
?
7.查看執行結果
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