使用JavaMail解析EML文件

Java

當我們在outlook中保存一個郵件是可以存成eml格式，這種格式是標準的郵件格式. 這種文件可以用JavaMail來解析。

import java.util.;
import java.io.;
import javax.mail.;
import javax.mail.internet.;

public class ReadEmail {
public static void main(String args[]) throws Exception{
       display(new File("C:\temp\message.eml"));
}
public static void display(File emlFile) throws Exception{
        Properties props = System.getProperties();
        props.put("mail.host", "smtp.dummydomain.com");
        props.put("mail.transport.protocol", "smtp");

    Session mailSession = Session.getDefaultInstance(props, null);
    InputStream source = new FileInputStream(emlFile);
    MimeMessage message = new MimeMessage(mailSession, source);

    System.out.println("Subject : " + message.getSubject());
    System.out.println("From : " + message.getFrom()[0]);
    System.out.println("--------------");
    System.out.println("Body : " +  message.getContent());
}

}</pre> 


 eml文件格式說明 : 

X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
Received: from tomts25-srv.bellnexxia.net 
        (tomts25.bellnexxia.net [209.226.175.188])
    by tactika.com (8.9.3/8.9.3) with ESMTP id NAA07621
    for ; Sun, 1 Feb 2004 13:25:33 -0500 (EST)
Date: Sun, 01 Feb 2004 13:31:40 -0500
From: real gagnon 
Reply-To: real@rgagnon.com
User-Agent: Mozilla/5.0 
   (Windows; U; Windows NT 5.1; en-US; rv:1.4) 
   Gecko/20030624 Netscape/7.1 (ax)
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: real@rgagnon.com
Subject: Example for HowTo
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
X-UIDL: oP#!!c]^!!1;-!!T@1"!

This is an example for HowTo</pre> 


 通過上面的程序解析后的輸出如下: 

Subject : Example for HowTo

From : real gagnon 
Body :
This is an example for HowTo</pre>