小编R. *_*mou的帖子

我正在尝试通过 Spring 2.5 的 MailSender 使用 JavaMail 发送附件，但我不断收到此错误：

Passed-in Resource contains an open stream: invalid argument.
JavaMail requires an InputStreamSource that creates a fresh stream for every call.

我正在使用InputStreamResource：

InputStream crofileInputStream = emailDraft.getAttachmentCroFile().getInputStream();
InputStream nacfileInputStream = emailDraft.getAttachmentNacFile().getInputStream();
InputStream sourcefileInputStream = emailDraft.getAttachmentSourceFile().getInputStream();

InputStreamSource[] attachments = {new InputStreamResource(crofileInputStream),new InputStreamResource(nacfileInputStream),new InputStreamResource(sourcefileInputStream)};

sentEmailLog = mailSenderService.sendMIMEMessage(emailDraft, attachmentFileNames, attachments);

最后一条指令调用 MimeMessageHelper.addAttachment(fileName,attachments[i])每个附件。

请问我怎么解决这个问题？

谢谢你的帮助。