将文件从HDFS附加到javax.mail电子邮件

找不到将文件从HDFS附加到电子邮件MimeBodyPart的方法。 这是我迄今为止的尝试。我尝试同时使用FileDataSource和URLDataSource，但没有成功

val attachmentPart = new MimeBodyPart()
val filePath = "FILE_PATH"
val fileName = s"FILE_NAME_${date}.html"

val fs = FileSystem.get(sctx.hadoopConfiguration)
val fullURL = fs.getFileStatus(new Path(filePath+fileName)).getPath.toUri.toURL
//val fullFilePath = fs.getFileStatus(new Path(filePath+fileName)).getPath.toString

val source = new URLDataSource(fullURL)
//val source = new FileDataSource(fullFilePath)
attachmentPart.setDataHandler(new DataHandler(source))
attachmentPart.setFileName("file name")

Exception in thread "main" java.net.MalformedURLException: unknown protocol: hdfs

在URLDataSource的情况下，我得到以下错误：

Exception in thread "main" java.net.MalformedURLException: unknown protocol: hdfs

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尝试注册hadoop的FsUrlStreamHandlerFactory以使用模式hdfs处理URL

Exception in thread "main" java.net.MalformedURLException: unknown protocol: hdfs

import org.apache.hadoop.fs.FsUrlStreamHandlerFactory
import java.net.URL
URL.setURLStreamHandlerFactory(new FsUrlStreamHandlerFactory())

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尝试注册hadoop FsUrlStreamHandlerFactory处理程序

import org.apache.hadoop.fs.FsUrlStreamHandlerFactory URL.setURLStreamHandlerFactory（新的FsUrlStreamHandlerFactory（））