删除HDFS中指定的文件。

import java.text.SimpleDateFormat;
import java.util.Scanner;

import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocatedFileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.RemoteIterator;


public class I_delFile {
    public static void ReadFilesStatus(FileStatus fileinfo)
    {
        SimpleDateFormat format = new SimpleDateFormat(
                "yyyy-MM-dd HH:mm:ss");
        System.out.println("file path :"+fileinfo.getPath());
    }
    public static void DelFile(FileSystem fs,Path p_remotepath)
    {
        try{
            if(fs.delete(p_remotepath, true))
            {
                System.out.println("del successfully");
            }
            else
            {
                System.out.println("del fail");
            }
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    public static void main(String arg[])
    {
        try{
            Var_init var = new Var_init();
            String s_path = "/user";
            Path p_path = new Path(s_path);
            RemoteIterator<LocatedFileStatus> remoteIterator = var.fs.listFiles(p_path, true);
            while(remoteIterator.hasNext())
            {
                var.fileinfo = remoteIterator.next();
                ReadFilesStatus(var.fileinfo);
            }
            System.out.println("plz input the file u want to del like /user/hadoop/test");
            Scanner sc = new Scanner(System.in);
            String path = sc.next();
            Path remotepath = new Path(path);
            DelFile(var.fs,remotepath);
        }
        catch(Exception e){
            e.printStackTrace();
        }
    }
}

Var_init类参考 https://www.cnblogs.com/MiraculousB/p/13848744.html