正如标题所述,我创建一个新文件,然后将该文件作为电子邮件附件发送
文件创建代码:
newFile = new File("/sdcard/" + TEMPFILENAME);
if (newFile.exists()) {
newFile.delete();
}
newFile.createNewFile();
for (int j = 0; j < arrayList.size(); j++) {
writeFileToStorage(TEMPFILENAME, arrayList.get(j).AccountName, arrayList.get(j).UserName, encryptString(arrayList.get(j).Password));
}
recipient = emailEdit.getText().toString();
new EmailSender().execute();
然后在我的电子邮件服务类中我有以下内容
MimeMessage message = new MimeMessage(session);
MimeMultipart multipart = new MimeMultipart();
BodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(file.getAbsolutePath());
DataHandler handler = new DataHandler(source);
message.setSender(new InternetAddress(sender));
message.setSubject(subject);
message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipient));
messageBodyPart.setDataHandler(handler);
messageBodyPart.setFileName(file.getName());
multipart.addBodyPart(messageBodyPart);
message.setContent(multipart);
Transport.send(message);
文件以正确的名称从正确的收件人/发件人处发送,但文件始终为空。
有什么想法吗?
编辑:
writeFileToStorage的实现,它在保存数据时定期在应用程序中运行
try {
bufferedWriter = new BufferedWriter(new OutputStreamWriter(openFileOutput(fName, MODE_APPEND)));
bufferedWriter.write(aName);
bufferedWriter.newLine();
bufferedWriter.write(_uName);
bufferedWriter.newLine();
bufferedWriter.write(_pWord);
bufferedWriter.newLine();
bufferedWriter.close();
Log.d("Wrote: ", ("AccountName: "+ aName + " UserName: " + _uName + " Password: " + _pWord+ " to: " + fName));
} catch (Exception err) {
String writeError = getString(R.string.write_error);
Toast.makeText(getBaseContext(), writeError, Toast.LENGTH_SHORT).show();
}
最佳答案
您如何编写 writeFileToStorage(...)
方法会很有趣。
调用 newFile.createNewFile();
后,您的 newFile
将不会被操作。
编辑:您的 writeFileToStorage(...)
方法似乎不起作用。参数fname
不正确。
关于java - 写入文件不会写入,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30417168/