发邮件的JAVA程序

以下是一个邮件发HTML的例子,供大家写发邮件参考.
功能是发送UL地址的HTML到邮件.其中的图片会随同邮件一同发给和户.
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(方志文)
*
*/
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));