新建一个Map/Reduce工程文件:HelloWorld.java
import java.io.OutputStream;
public class HelloWorld {
public static void main(String[] args) throws Exception {
Configuration configuration = new Configuration();
FileSystem fs = FileSystem.get(configuration);
OutputStream out = fs.create(new Path("./input/linuxidc.txt"));
String str = "Hello World linuxidc";
out.write(str.getBytes());
out.flush();
out.close();
}
}
在src的目录下创建一个文件夹input及输出文件linuxidc.txt,运行java程序，打开linuxidc.txt可以看到Hello World linuxidc