發郵件的JAVA程式

以下是一個郵件發HTML的例子,供大家寫發郵件參考.
功能是發送UL地址的HTML到郵件.其中的圖片會隨同郵件一同發給和戶.

package com.fswan.memo;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.activation.DataHandler;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
/**
 * @author swan Fong(方誌文)
 *
 */
public class TestMail
{
 public static final String ul = "http://www.qxzw.com/htmpage/0/14/123.htm" ;
 public static void main(String[] args)
 {
  try
  {
   URL url = new URL(ul);
//   InputStream ins = url.openStream();
   sendMail(url,"newsbot@yeah.net","smtp.yeah.net");
  } catch (MalformedURLException e)
  {
   e.printStackTrace();
  }
 }
 public static void sendMail(URL url,String mail,String smtpServer)
 {
  System.out.println("send");
  MimeMultipart mp = new MimeMultipart();
  String idStr = new SimpleDateFormat("hhmmsss").format(new Date());
  System.out.println(idStr);
  try
  {
   InputStream ins = url.openStream();
   StringBuffer sb = new StringBuffer();
   byte[] conts = new byte[10240];
   int len = ins.read(conts);
   while (len > 0)
   {
    sb.append(new String(conts,0,len));
//    System.out.println(new String(conts));
//    conts = new byte[10240];
    len = ins.read(conts);
   }
   String con = sb.toString();
   String con2 = sb.toString();
   sb = new StringBuffer();
   String regex = "<img .*src=/"?([^/">]*)/"?.*/?//s*>";
   Pattern p = Pattern.compile(regex);
   Matcher m = p.matcher(con);
   ArrayList _mailAttachment = new ArrayList();
   int lastPos = 0;
   while (m.find())
   {
    sb.append(con.substring(lastPos, m.start()));
    sb.append(m.group().replaceAll(m.group(1), "cid:" + idStr + _mailAttachment.size()));
    _mailAttachment.add(new URL(url, m.group(1)));
    lastPos = m.end();
   }
   sb.append(con.substring(lastPos, con.length()));
   
   MimeBodyPart mbp2 = new MimeBodyPart();
   mbp2.setContent(sb.toString(),"text/html; charset=GB2312");
   mp.addBodyPart(mbp2);
   for (int i = 0; i < _mailAttachment.size(); i++)
   {
    MimeBodyPart mbp = new MimeBodyPart();
    mbp.setDataHandler(new DataHandler((URL)_mailAttachment.get(i)));
    mbp.setHeader("Content-ID",idStr+i);
    mp.addBodyPart(mbp);
   }
   
   Properties prop = new Properties();
   prop.put("mail.smtp.host", smtpServer);
   prop.put("mail.smtp.auth", "true");
   Session s = Session.getInstance(prop, new Authenticator(){
    public PasswordAuthentication getPasswordAuthentication()
    {
     return new PasswordAuthentication("newsbot@yeah.net", "fswan123");
    }
   });
   MimeMessage message = new MimeMessage(s);
   message.setSubject("mail");
   message.setFrom(new InternetAddress(mail));
   message.setRecipient(Message.RecipientType.TO, new InternetAddress(mail));
   message.setContent(mp);
   Transport.send(message);
  } catch (MalformedURLException e)
  {
   e.printStackTrace();
  } catch (IOException e)
  {
   e.printStackTrace();
  } catch (MessagingException e)
  {
   e.printStackTrace();
  }
  System.out.println("Finished");
 }
}