Java Apache IOUtils : how to delete a file after read it into a byte array?

Question

所以我尝试使用apache公共(public)库将文件读入字节数组，然后删除文件本身。但我做不到。有人可以告诉我为什么吗？

  File   aFile = new File("path_To_A_PDF_File");
  byte[] fileBytes = IOUtils.toByteArray(new FileInputStream(aFile));
  boolean result = aFile.delete();

  System.out.println("is file " + aFile.getAbsolutePath() + " deleted? " + result);

如何删除该文件？谢谢

Answer 1

您必须关闭通过以下方式打开的流:new FileInputStream(aFile)