删除HDFS中指定的文件。

 1 import java.text.SimpleDateFormat;
 2 import java.util.Scanner;
 3
 4 import org.apache.hadoop.fs.FileStatus;
 5 import org.apache.hadoop.fs.FileSystem;
 6 import org.apache.hadoop.fs.LocatedFileStatus;
 7 import org.apache.hadoop.fs.Path;
 8 import org.apache.hadoop.fs.RemoteIterator;
 9
10
11 public class I_delFile {
12     public static void ReadFilesStatus(FileStatus fileinfo)
13     {
14         SimpleDateFormat format = new SimpleDateFormat(
15                 "yyyy-MM-dd HH:mm:ss");
16         System.out.println("file path :"+fileinfo.getPath());
17     }
18     public static void DelFile(FileSystem fs,Path p_remotepath)
19     {
20         try{
21             if(fs.delete(p_remotepath, true))
22             {
23                 System.out.println("del successfully");
24             }
25             else
26             {
27                 System.out.println("del fail");
28             }
29         }
30         catch(Exception e)
31         {
32             e.printStackTrace();
33         }
34     }
35     public static void main(String arg[])
36     {
37         try{
38             Var_init var = new Var_init();
39             String s_path = "/user";
40             Path p_path = new Path(s_path);
41             RemoteIterator<LocatedFileStatus> remoteIterator = var.fs.listFiles(p_path, true);
42             while(remoteIterator.hasNext())
43             {
44                 var.fileinfo = remoteIterator.next();
45                 ReadFilesStatus(var.fileinfo);
46             }
47             System.out.println("plz input the file u want to del like /user/hadoop/test");
48             Scanner sc = new Scanner(System.in);
49             String path = sc.next();
50             Path remotepath = new Path(path);
51             DelFile(var.fs,remotepath);
52         }
53         catch(Exception e){
54             e.printStackTrace();
55         }
56     }
57 }

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