Question

嘿，我正在构建一个用户可以向某人发送电子邮件的应用程序。用户在“编辑”字段中输入要向其发送电子邮件的人员的电子邮件ID，然后按下发送按钮，必须通过附件发送电子邮件。

我该怎么办？??????

谷歌搜索后我真的很困惑。谁能告诉我确切的方式

另外，如果我的鳕鱼文件没有签名，我无法从模拟器发送电子邮件

提前致谢

Answer 1

试试这个。

     Address[] address = new Address[1];
                    try {
                        address[0] = new Address(email,name);
                    } catch (AddressException e1) {
                        // TODO Auto-generated catch block
                        e1.printStackTrace();
                    }
                    byte[] data = readFile();
                    Multipart multipart = new Multipart();
                    SupportedAttachmentPart attach = new SupportedAttachmentPart(multipart,
                            "application/x-example", "test.txt", data);
                    multipart.addBodyPart(attach);
                    Message msg = new Message();
                    // add the recipient list to the message
                    try {
                        msg.addRecipients(Message.RecipientType.TO, address);
                         // set a subject for the message
                        msg.setSubject("Mail from mobile");
                        msg.setContent(multipart);
                    } catch (MessagingException e1) {
                        // TODO Auto-generated catch block
                        e1.printStackTrace();
                    }


                    try {
                        Transport.send(msg);
                    } catch (MessagingException e) {
                        System.out.println(e.getMessage());
                    }
private static byte[] readFile() {
    String fName ="file:///store/home/user/test.txt";
    byte[] data = null;
    FileConnection fconn = null;
    DataInputStream is = null;
    try {
            fconn = (FileConnection) Connector.open(fName, Connector.READ_WRITE);
            is = fconn.openDataInputStream();             
            data = IOUtilities.streamToBytes(is);
    } catch (IOException e) {
            System.out.println(e.getMessage());
    } finally {
            try {
                    if (null != is)

                            is.close();
                    if (null != fconn)
                            fconn.close();
            } catch (IOException e) {
                    System.out.println(e.getMessage());
            }
    }
    return data;
}

Answer 2

这是一个创建新电子邮件并在从我的项目BBSSH发送之前将其提交审核的工作示例。您不需要也可以删除的对话框/弹出窗口。在这个例子中，我们将位图作为参数，并将其转换为我们附加到电子邮件的PNG。将以类似方式附加不同的内容类型。

如果代码是无符号的，你应该可以从模拟器做任何事情;但是我认为电子邮件实际上不会被发送，因为模拟器本身没有连接到实际的邮件服务器。

/**
  * Sends feedback, optionally including the provided bitmap as an attachement.
  *
  * it is the caller's responsibility to ensure that this is invoked
  * in a properly synchronized manner.
  *
  * @param screenshot - if not null, this function prompts
  * the user to include the screenshot as an attachment. 
  */
 public static void sendFeedback(Bitmap screenshot) {
  ResourceBundle b = ResourceBundle.getBundle(BBSSHRResource.BUNDLE_ID,
    BBSSHRResource.BUNDLE_NAME);
  try {
   Multipart mp = new Multipart();
   Message msg = new Message();
   Address[] addresses = {new Address("recipient@example.com", "Recipient Name")};
   if (screenshot == null || Dialog.ask(Dialog.D_YES_NO,
     b.getString(BBSSHRResource.MSG_FEEDBACK_INCLUDE_SCREENSHOT), Dialog.YES) == Dialog.NO) {
   } else {
    PNGEncodedImage img = PNGEncodedImage.encode(screenshot);
    SupportedAttachmentPart pt = new SupportedAttachmentPart(mp, img.getMIMEType(),
      "bbssh-screen.png", img.getData());
    mp.addBodyPart(pt);
    msg.setContent(mp);
   }
   msg.addRecipients(RecipientType.TO, addresses);
   msg.setSubject("BBSSH Feedback");
   Invoke.invokeApplication(Invoke.APP_TYPE_MESSAGES, new MessageArguments(msg));
  } catch (AddressException ex) {
   Logger.getLogger().log(10, "Unable to send feedback: " + ex.getMessage());
  } catch (MessagingException ex) {
   Logger.getLogger().log(10, "Unable to send feedback: " + ex.getMessage());
  }

 }

如果您想发送邮件而不是将其用于审核而不是Invoke.invokeApplication，则可以使用Transport.send（msg）;

j2me / BlackBerry - 如何从应用程序发送带附件的电子邮件？

2 个答案: