java mail 发邮件

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本文提供了一个使用Java实现的邮件发送程序示例，通过该示例可以了解如何配置SMTP服务器并利用MIME消息格式来构造及发送带有HTML内容的电子邮件。

import java.util.Date;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.Multipart;
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;

public class SendMail {

private static SendMail instance = null;

private SendMail() {

}

public static SendMail getInstance() {
  if (instance == null) {
   instance = new SendMail();
  }
  return instance;
}

    public void send(String sb) {
        try {
        String to[]={"aa@bb.com"};
           Properties p = new Properties(); //Properties p = System.getProperties();
            p.put("mail.smtp.auth", "true");
            p.put("mail.transport.protocol", "smtp");
            p.put("mail.smtp.host", "fuwuqiming");
            p.put("mail.smtp.port", "25");
            //建立会话
            Session session = Session.getInstance(p);
            Message msg = new MimeMessage(session); //建立信息

            msg.setFrom(new InternetAddress("administrator@bb.com")); //发件人

            String toList = getMailList(to);
            InternetAddress[] iaToList = new InternetAddress().parse(toList);

            msg.setRecipients(Message.RecipientType.TO,iaToList); //收件人

            msg.setSentDate(new Date()); // 发送日期
            msg.setSubject("(info)exception"); // 主题
            //msg.setText("注意，这是测试程序发的，请不要回复！"); //内容

            Multipart mp = new MimeMultipart();
            MimeBodyPart mbp = new MimeBodyPart();

            // 设定邮件内容的类型为 text/plain 或 text/html
            mbp.setContent(sb.toString(),"text/html;charset=GB2312");
            mp.addBodyPart(mbp);
            msg.setContent(mp);

            // 邮件服务器进行验证
            Transport tran = session.getTransport("smtp");
            tran.connect("fuwuqiming", "bb299", "xx@03");
            // bluebit_cn是用户名，xiaohao是密码
            tran.sendMessage(msg, msg.getAllRecipients()); // 发送
            System.out.println("邮件发送成功");

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private String getMailList(String[] mailArray){

        StringBuffer toList = new StringBuffer();
    int length = mailArray.length;
        if(mailArray!=null && length <2){
             toList.append(mailArray[0]);
        }else{
             for(int i=0;i<length;i++){
                     toList.append(mailArray[i]);
                     if(i!=(length-1)){
                         toList.append(",");
                     }

             }
         }
     return toList.toString();

}

public String getException(Throwable e) {

        StringBuffer bs = new StringBuffer();
        StackTraceElement[] a = e.getStackTrace();
        bs.append("<br>　信息: " + e.fillInStackTrace() + "");
        for (int i = 0; i < a.length; i++) {
            bs.append("<br>　　　　在" + a[i].getClassName() + "类(" + a[i].getFileName() + ":" + a[i].getLineNumber() + "行,"
                    + a[i].getMethodName() + "()方法)");
        }
        return bs.toString();

    }

    public static void main(String[] args) {
    SendMail o = new SendMail();
    o.send("asdfasdfasdf11111111112");
}

}