我想将Pdf作为电子邮件附件发送(我正在使用JavaMail API)。我将Pdf(由jasper生成)作为byte[]。
public InputStream exportPdfToInputStream(User user) throws ParseErrorException, MethodInvocationException, ResourceNotFoundException, JRException, IOException{
JasperPrint jasperPrint = createJasperPrintObject(user);
byte[] pdfByteArray = JasperExportManager.exportReportToPdf(jasperPrint);
return new ByteArrayInputStream(pdfByteArray);
}
这是我用来构造将作为附件的
MimeBodyPart的代码: if (arrayInputStream != null && arrayInputStream instanceof ByteArrayInputStream) {
MimeBodyPart attachment = new MimeBodyPart(arrayInputStream);
attachment.setHeader("Content-Type", "application/pdf");
mimeMultipart.addBodyPart(attachment);
}
这段代码给了我这个错误:
javax.mail.MessagingException: IOException while sending message;
nested exception is:
java.io.IOException: Error in encoded stream: needed at least 2 valid base64 characters, but only got 1 before padding character (=), the 10 most recent characters were: "\24\163\193\n\185\194\216#\208="
最佳答案
您使用的构造函数用于解析传输中的mime部分。
您的第二个示例应该可以正确解决。你可能会考虑