Question

我一直在寻找和尝试这么久我需要你的帮助。我有一个获取HTML电子邮件的服务器。在那之后，我想得到它的部分（标题，主题和身体部分）。获取标题和主题没有问题，但内容是。

所以这里是我获得SmtpMessage的代码：

private SmsItem getEmailData(SmtpMessage msg) throws MessagingException, IOException {
        String to = msg.getHeaderValue("To");
        String from = msg.getHeaderValue("From");
        String content = null;
        LOG.info("Mail from: " + from + " to: " + to);

        String toNr;
        Pattern mobileNr = Pattern.compile("(\\+?[0-9]+)@*");
        Matcher matcher = mobileNr.matcher(to);
        if (matcher.find()) {
            toNr = Utils.processAddress(matcher.group(1));
        } else {
            throw new RuntimeException("Illegal address to send SMS from mail: " + to);
        }

        Pattern fromMail = Pattern.compile("\\<+([a-zA-Z0-9@.-]*)\\>+");
        matcher = fromMail.matcher(from);
        if(matcher.find()){
            from = matcher.group(1);
            LOG.info(from);
        }else{
            throw new RuntimeException("Ilegal From Address: " + from);
        }

现在我自己获取内容：

Session s = Session.getDefaultInstance(new Properties());
        String ip = msg.toString();
        ip = MimeUtility.decodeText(ip);
        InputStream is = new ByteArrayInputStream(ip.getBytes("ISO-8859-1"));
        MimeMessage mi = new MimeMessage(s, is);

        Object message = mi.getContent();
        String test = mi.getContent().toString();
        test.toString();

现在我有一个看起来像这样的字符串： javax.mail.internet.MimeMultipart@4edfc9bb

但是当我这样写出来的时候：

((Multipart) message).writeTo(System.out);

我在这里可以看到我想要的内容：

This is a multi-part message in MIME format.--------------010600010509000401060604Content-Type: text/plain; charset=utf-8; format=flowedContent-Transfer-Encoding: 7bit
*asdasd ad asd asddfgdfgsdfsd:-)*
  asdsad
javax.mail.MessagingException: Empty multipart: multipart/alternative;
    at javax.mail.internet.MimeMultipart.writeTo(MimeMultipart.java:548)
    at ...

但它不可能是空的吗？我试图让它得到这样的内容：

if (message instanceof String)
        {
            message = (String)message;
            LOG.info("String");
        }
        else if (message instanceof Multipart)
        {   
            Multipart mp = (Multipart)message;
            LOG.info("Count: " + mp.getCount() + mp.getParent() + test.toString());
            for (int i = 0; i < mp.getCount(); i++){
                LOG.info("Multipart");
                LOG.info(i + ". " + mp.getBodyPart(i).toString());
                BodyPart bp = mp.getBodyPart(i);
                String dp = bp.getDisposition();

                if(dp != null){
                    LOG.error("Something's wrong");
                }else if(dp.equalsIgnoreCase("ATTACHMENT")){
                    LOG.error("Attachment dürfen nicht mitgegeben werden!");
                }else{
                    content = bp.getContent().toString();
                }
            }
        }

我真的需要完成这项工作，并且我已经在互联网上搜索了很长时间..

Answer 1

使用commons-email，您可以获得如下内容

MimeMessageParser parser = new MimeMessageParser(yourMimeMessage);
parser.parse();

String htmlContent = parser.getHtmlContent();
// or
String plainContent = parser.getPlainContent();

Answer 2

您可以使用Simple Java Mail（开源）将MimeMessage转换为电子邮件对象，然后访问所有内容，包括附件和嵌入图片，收件人，HTML，文本和标题：

<!DOCTYPE html>

<html lang="es">

<head>
    <!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>

<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

    <link rel="stylesheet" href="styles/main.css">
    <meta charset="utf-8">
    <title>Apple - iPhone</title>
    
</head>
    
<body>
    

    
    <ul>
        <img src="images/logo.png">
        <li><a href="#">iPhone</a></li>
        <li><a href="#">Mac</a></li>
        <li><a href="#">iPad</a></li>
        <li><a href="#">iPod</a></li>
    </ul>
    
    <div id="ad">
    
        <h1>Think different</h1>
    
    </div>
    <div id="product-container">
        <div id="product" class="product2">
    
        
    
        </div>
        <div id="product" class="product1">
    
        
    
        </div>
    </div>
    <div id="product-container2">
        
    </div>

    
</body>
    
</html>

从这里，您可以轻松查看电子邮件中的所有项目。

将MimeMessage内容作为字符串获取

2 个答案: