Java电子邮件消息解析器？

Question

是任何人都熟悉的Java库，以解析领域帮助（日期，主题，发件人，收件人）下面的电子邮件？

的

Message-ID: <19815303.1075861029555.JavaMail.ss@kk>
Date: Wed, 6 Mar 2010 12:32:20 -0800 (PST)
From: someone@someotherplace.com
To: someone@someplace.com
Subject: some subject
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-From: one, some <some.one@someotherplace.com>
X-To: one
X-cc: 
X-bcc: 
X-Folder: Bob\Inbox
X-Origin: Bob-R
X-FileName: rbob (Non-Privileged).pst


some message

Answer 1

JavaMail的是一个oracle库，提供电子邮件服务和邮件相关服务（例如常规解析＆MIME消息）在javax.mail包。另外的Apache有一个通用电子邮件对邮件处理库。

在JavaMail的API，一个简单的方法来解析包含电子邮件消息（其可以是或可以不是明确地MIME）的字符串将如下

String content = ...
Session s = Session.getInstance(new Properties());
InputStream is = new ByteArrayInputStream(content.getBytes());
MimeMessage message = new MimeMessage(s, is);

和解析报头可以这样

完成

message.getAllHeaderLines();
for (Enumeration<Header> e = message.getAllHeaders(); e.hasMoreElements();) {
    Header h = e.nextElement();
    h.getName();
    h.getValue();
}

Answer 2

我有问题用JavaMail（它不能解析某些电子邮件消息，它应）。

我曾与 Mime4J 更好的结果。

Answer 3

我会建议你使用电子邮件MIME解析器，

下面的示例代码为您提供所有相关信息，您需要：

ContentHandler contentHandler = new CustomContentHandler();

MimeConfig mime4jParserConfig = new MimeConfig();
BodyDescriptorBuilder bodyDescriptorBuilder = new DefaultBodyDescriptorBuilder();
MimeStreamParser mime4jParser = new MimeStreamParser(mime4jParserConfig,DecodeMonitor.SILENT,bodyDescriptorBuilder);
mime4jParser.setContentDecoding(true);
mime4jParser.setContentHandler(contentHandler);

InputStream mailIn = 'Provide email mime stream here';
mime4jParser.parse(mailIn);

Email email = ((CustomContentHandler) contentHandler).getEmail();

List<Attachment> attachments =  email.getAttachments();

Attachment calendar = email.getCalendarBody();
Attachment htmlBody = email.getHTMLEmailBody();
Attachment plainText = email.getPlainTextEmailBody();

String to = email.getToEmailHeaderValue();
String cc = email.getCCEmailHeaderValue();
String from = email.getFromEmailHeaderValue();