import java.io.IOException;import java.net.URI;import java.net.URISyntaxException;/*** * @author  */import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.fs.FileSystem;import org.apache.hadoop.fs.Path;public class DeleteFolder {    public static void main(String[] args) throws URISyntaxException, IOException, InterruptedException {        Configuration conf=new Configuration();           //注意修改为自己的IP           URI uri=new URI("hdfs://192.168.1.100:9000");           FileSystem fs=FileSystem.get(uri,conf,"hadoop");         //删除目录，如果是空的路径，可以忽略第二个参数          fs.delete(new Path("/user/hadoop/ccqq/qq/"),true);           /**           * /user/hadoop/ccqq/qq           * /user/hadoop/ccqq/qq/    二者无区别，效果均同           */    }}