HDFS的Java客户端操作代码(HDFS删除文件或目录)

1.HDFS删除文件或目录

 package Hdfs;

 import java.io.IOException;
 import java.net.URI;

 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 /**
  * 删除HDFS上的文件或目录实例
  * @author SimonsZhao
  *
  */
 public class DeleteFile {
     public static void main(String[] args) {
         String uri="hdfs://neusoft-master:9000/user/root/test1";
         Configuration conf = new Configuration();
         try {
             FileSystem fs = FileSystem.get(URI.create(uri),conf);
             Path delPath = new Path("hdfs://neusoft-master:9000/user/root/test1");
             boolean isDeleted = fs.delete(delPath,false);
             //boolean isDeleted = fs.delete(delPath,true);//递归删除
             System.out.println(isDeleted);
         } catch (IOException e) {
             e.printStackTrace();
         }
     }
 }

HDFS非递归删除目录或文件

2.打成Jar包并提交至linux虚拟机运行

[root@neusoft-master hadoop]# hadoop jar /usr/local/software/JarDeleteFile.jar

　　

结果为：true

3.查看HDFS文件系统是否成功删除

[root@neusoft-master hadoop]# hadoop dfs -ls /user/root/