spark 调用 hdfs API 查询文件名字、删除文件：

获取HDFS上面某个路径下的所有文件的名字

import org.apache.hadoop.conf.Configuration

import org.apache.hadoop.fs.{FileUtil, Path}

val configuration = new Configuration()

val output = new Path(filePath)

val hdfs = output.getFileSystem(configuration)

val fs = hdfs.listStatus(output)

val fileName = FileUtil.stat2Paths(fs)

hdfs.close()

删除HDFS上面某个文件

import org.apache.hadoop.conf.Configuration

import org.apache.hadoop.fs.Path

val configuration = new Configuration()

val output = new Path(fileName)

val hdfs = output.getFileSystem(configuration)

hdfs.delete(output, true)

hdfs.close()