Titan專欄

package org.tatan.mail;

import javax.mail.Session;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;
import javax.activation.FileDataSource;
import javax.activation.DataHandler;

public class SendAttachMail {
    public static void sendMessage(String smtpHost,
                                   String from, String to,
                                   String subject, String messageText,
                                   String fileName)
            throws MessagingException {

        // Step 1:  Configure the mail session
        java.util.Properties props = new java.util.Properties();
        props.setProperty("mail.smtp.auth", "true");//指定是否需要SMTP驗證
        props.setProperty("mail.smtp.host", smtpHost);//指定SMTP服務器
        props.put("mail.transport.protocol", "smtp");
        Session mailSession = Session.getDefaultInstance(props);
        mailSession.setDebug(true);//是否在控制臺顯示debug信息

        // Step 2:  Construct the message
        System.out.println("Constructing message -  from=" + from + "  to=" + to);
        InternetAddress fromAddress = new InternetAddress(from);
        InternetAddress toAddress = new InternetAddress(to);

        MimeMessage testMessage = new MimeMessage(mailSession);
        testMessage.setFrom(fromAddress);
        testMessage.addRecipient(javax.mail.Message.RecipientType.TO, toAddress);
        testMessage.setSentDate(new java.util.Date());
        testMessage.setSubject(subject);

        //  Step 3:  Create a body part to hold the "text" portion of the message
        System.out.println("Constructing 'text' body part");
        MimeBodyPart textBodyPart = new MimeBodyPart();
        textBodyPart.setContent(messageText,"text/html;charset=gb2312");

        //  Step 4:  Create a body part to hold the "file" portion of the message
        System.out.println("Attaching 'file' body part: " + fileName);
        MimeBodyPart fileBodyPart = new MimeBodyPart();
        FileDataSource fds = new FileDataSource("c:\\a.rar");
        fileBodyPart.setDataHandler(new DataHandler(fds));
        fileBodyPart.setFileName(fds.getName());
        System.out.println("Finished attaching file");

        // Step 5:  Create a Multipart/container and add the parts
        Multipart container = new MimeMultipart();
        container.addBodyPart(textBodyPart);
        container.addBodyPart(fileBodyPart);

        // Step 6:  Add the Multipart to the actual message
        testMessage.setContent(container);
        System.out.println("Message constructed");

        // Step 7:  Now send the message
        Transport transport = mailSession.getTransport("smtp");
        transport.connect(smtpHost, "webmaster", "password");
        transport.sendMessage(testMessage, testMessage.getAllRecipients());
        transport.close();

        System.out.println("Message sent!");
    }

    public static void main(String[] args) {

        String fileName = "a.rar";
        String smtpHost = "localhost";
        String from = "webmaster@mymail.com";
        String to = "mfc42d@sohu.com";
        String subject = "html郵件附件測試"; //subject javamail自動轉碼
         StringBuffer theMessage = new StringBuffer();
        theMessage.append("<h2><font color=red>這倒霉孩子</font></h2>");
        theMessage.append("<hr>");
        theMessage.append("<i>年年失望年年望</i>");

        try {
            SendAttachMail.sendMessage(smtpHost, from, to, subject, theMessage.toString(), fileName);
        }
        catch (javax.mail.MessagingException exc) {
            exc.printStackTrace();
        }
    }
}