1、首先搭建hadoop环境:https://cloud.tencent.com/developer/article/1194499
2、使用hadoop自带的jar包测试wordcount,cd到包目录:
/usr/local/Cellar/hadoop/2.8.2/libexec/share/hadoop/mapreduce
3、执行命令
hadoop jar ./hadoop-mapreduce-examples-2.8.2.jar wordcount /input/test.txt output
4、结果输出到了output文件夹