阅读从 GMail 发送的邮件 [英] Reading mails sent from GMail

问题描述

我正在使用 JavaMail 在我的 Android 应用程序中阅读邮件.我已尝试涵盖所有组合，即在自定义服务器/Gmail ID/Live ID 上发送/接收的邮件.

I am using JavaMail to read mail in my Android app. I have tried to cover all combinations i.e Mail sent/received on/from Custom Server/Gmail ID/Live ID.

从 GMail WITH Attachment 发送的一些邮件会出现问题.我能够接收附件，但内容返回 javax.mail.internet.MimeMultipart@44f2e698

The problem occurs with SOME of the mails sent from GMail WITH Attachment. I am able to receive the attachment, but the content returns javax.mail.internet.MimeMultipart@44f2e698

这是用于接收和阅读消息的代码:

Here's the code used to receive and read messages:

    Properties props = System.getProperties();
    props.setProperty("mail.store.protocol", "imap");

    try {
     /* Create the session and get the store for read the mail. */
     Session session = Session.getInstance(props, null);
     Store store = session.getStore("imaps");
     store.connect("imap.gmail.com", Username, Password);

     /* Mention the folder name which you want to read. */
     Folder inbox = store.getFolder("INBOX");
     System.out.println("No of Unread Messages : " + inbox.getUnreadMessageCount());         

     /* Open the inbox using store. */
     inbox.open(Folder.READ_ONLY);

     Message messages[] = inbox.getMessages();       
     Log.d("Inbox", "Message Count: "+inbox.getMessageCount());

     for (int i = messages.length - 1 ; i > 0; --i) {
         Log.i("ContentType", "ContentType: "+messages[i].getContentType());

         Object msgContent = messages[i].getContent();

         String content = "";

         /* Check if content is pure text/html or in parts */            
         if (msgContent instanceof Multipart) {

             Multipart multipart = (Multipart) msgContent;

             Log.e("BodyPart", "MultiPartCount: "+multipart.getCount());

             for (int j = 0; j < multipart.getCount(); j++) {

              BodyPart bodyPart = multipart.getBodyPart(j);

              String disposition = bodyPart.getDisposition();

              if (disposition != null && (disposition.equalsIgnoreCase("ATTACHMENT"))) { // BodyPart.ATTACHMENT doesn't work for gmail
                  System.out.println("Mail have some attachment");

                  DataHandler handler = bodyPart.getDataHandler();
                  System.out.println("file name : " + handler.getName());                                 
                }
              else { 
                  System.out.println("Content: "+bodyPart.getContent());
                  content= bodyPart.getContent().toString();
                }
            }
         }
         else                
             content= messages[i].getContent().toString();

我对有问题的邮件的了解:

What I know about the problematic mails:

• getFrom 也返回名称，即它采用这种格式 FirstName LastName &[e-mail]&gt

• getFrom also return the name i.e it comes in this format FirstName LastName &[e-mail]&gt

MultiPart 包含 2 个 BodyPart:

MultiPart contains 2 BodyParts:

• BodyPart 1 将内容返回为 javax.mail.internet.MimeMultipart@44f2e698

BodyPart 2 返回正确的附件名称

BodyPart 2 returns the correct name for attachment

推荐答案

BodyPart 1 将内容返回为javax.mail.internet.MimeMultipart@44f2e698

BodyPart 1 returns the content as javax.mail.internet.MimeMultipart@44f2e698

尝试在 MimeMultiPart

这可能会返回一个 MimeBodyPart，您可以调用 getContent() onhttp://docs.oracle.com/javaee/5/api/javax/mail/internet/MimeBodyPart.html#content

That probably returns a MimeBodyPart you can call getContent() on http://docs.oracle.com/javaee/5/api/javax/mail/internet/MimeBodyPart.html#content

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