JavaEE-JavaMail03 发送邮件的示例

准备工作

1. MailConstants类, 定义了一些和邮件发送有关的常量

/********************************************************************************
 * Project Name      [JavaEE_Components]
 * File Name         [MailConstants.java]
 * Creation Date     [2015-01-01]
 * 
 * Copyright© [email protected] All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ********************************************************************************/
package javamail.utils;

/**
 * 发送和接收邮件的常量
 * 
 * @author 不落的太阳(Sean Yang aka ShortPeace)
 * @version 1.0
 * @since jdk 1.8
 * 
 */
public interface MailConstants {

    public static final String PROTOCOL_SMTP = "smtp";
    public static final String PROTOCAL_POP3 = "pop3";
    public static final String PROTOCAL_IMAP = "imap";

    public static final String SMTP_HOST_OF_SINA = "smtp.sina.com";
    public static final String SMTP_PORT_OF_SINA = "25";
    public static final String POP3_HOST_OF_SINA = "pop.sina.com";
    public static final String POP3_PORT_OF_SINA = "110";
    public static final String IMAP_HOST_OF_SINA = "imap.sina.com";
    public static final String IMAP_PORT_OF_SINA = "143";
    public static final Boolean IS_SSL_ENABLED_FOR_SINA = false;

    public static final Boolean IS_AUTHORIZATION_NEED = true;
    public static final Boolean IS_DEBUG_MOD_ENABLED = true;
}

2. MailAuthenticator类, 用来在获得Session时的认证

/********************************************************************************
 * Project Name      [JavaEE_Components]
 * File Name         [MailAuthenticator.java]
 * Creation Date     [2015-01-01]
 * 
 * Copyright© [email protected] All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ********************************************************************************/
package javamail.utils;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

/**
 * @author 不落的太阳(Sean Yang aka ShortPeace)
 * @version 1.0
 * @since jdk 1.8
 * 
 */
public class MailAuthenticator extends Authenticator {

    private String username;
    private String password;

    /**
     * 可以只传入username, password由 PasswordUtils 去获取
     * 
     * @param username
     * @param password
     */
    public MailAuthenticator(String username, String password) {
        this.username = username;
        this.password = password;
    }

    @Override
    public PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(username, password);
    }
}

3. PasswordUtils用来从数据库查询发件邮箱的密码

/********************************************************************************
 * Project Name      [JavaEE_Components]
 * File Name         [PasswordUtils.java]
 * Creation Date     [2015-01-01]
 * 
 * Copyright© [email protected] All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ********************************************************************************/
package javamail.utils;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * @author 不落的太阳(Sean Yang aka ShortPeace)
 * @version 1.0
 * @since jdk 1.8
 * 
 */
public class PasswordUtils {

    public static String readPassword(String username) {
        String password = "";

        try {
            String dbuser = "root";
            String dbpass = "123456";
            String driverClass = "com.mysql.jdbc.Driver";
            String url = "jdbc:mysql:///jdbc";

            Class.forName(driverClass);
            String sql = "SELECT password FROM Mail_User WHERE username = ?";
            Connection connection = DriverManager.getConnection(url, dbuser, dbpass);
            PreparedStatement statement = connection.prepareStatement(sql);
            statement.setString(1, username);
            ResultSet resultSet = statement.executeQuery();
            while (resultSet.next()) {
                password = resultSet.getString("password");
            }
            resultSet.close();
            statement.close();
            connection.close();
        } catch (SQLException | ClassNotFoundException e) {
            e.printStackTrace();
        }

        return password;
    }
}

下面开始正式的发送邮件示例

发送文本邮件

/********************************************************************************
 * Project Name      [JavaEE_Components]
 * File Name         [SendingTextMail.java]
 * Creation Date     [2015-01-01]
 * 
 * Copyright© [email protected] All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ********************************************************************************/
package javamail.mail;

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

import javax.mail.Message.RecipientType;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import org.junit.Before;
import org.junit.Test;

import javamail.utils.MailConstants;
import javamail.utils.PasswordUtils;

/**
 * 使用SMTP协议发送纯文本邮件
 * 
 * @author 不落的太阳(Sean Yang aka ShortPeace)
 * @version 1.0
 * @since jdk 1.8
 * 
 */
public class SendingTextMail {

    // 发件人
    private static String emailSender = "[email protected]";

    // 收件人
    private static String emailRecipient = "[email protected]";

    // 初始化连接邮件服务器的会话信息
    private static Properties properties = null;

    @Before
    public void init() {
        properties = new Properties();
        properties.setProperty("mail.transport.protocol", MailConstants.PROTOCOL_SMTP);
        properties.setProperty("mail.smtp.host", MailConstants.SMTP_HOST_OF_SINA);
        properties.setProperty("mail.smtp.port", MailConstants.SMTP_PORT_OF_SINA);
        properties.setProperty("mail.smtp.auth", String.valueOf(MailConstants.IS_AUTHORIZATION_NEED));
        properties.setProperty("mail.debug", String.valueOf(MailConstants.IS_DEBUG_MOD_ENABLED));
    }

    /**
     * 发送简单的文本邮件
     * 
     * @throws Exception
     */
    public static void sendTextMail() throws Exception {
        // 创建Session实例
        Session session = Session.getDefaultInstance(properties);
        // 创建MimeMessage实例
        MimeMessage message = new MimeMessage(session);
        // 设置发件人
        message.setFrom(new InternetAddress(emailSender));
        // 设置邮件主题
        message.setSubject("JavaMail - 简单文本文件");
        // 设置收件人
        message.setRecipient(RecipientType.TO, new InternetAddress(emailRecipient));
        // 设置发送时间
        message.setSentDate(new Date());
        // 设置纯文本内容为邮件正文
        message.setText("使用JavaMail发送纯文本文件");
        // 保存并生成最终的邮件内容
        message.saveChanges();
        // 获得Transport实例
        Transport transport = session.getTransport();
        // 打开连接
        transport.connect(emailSender, PasswordUtils.readPassword(emailSender));
        // 将message对象传递给transport对象, 将邮件发送出去
        transport.sendMessage(message, message.getAllRecipients());
        // 关闭连接
        transport.close();
    }

    @Test
    public void testSendTextMail() throws Exception {
        sendTextMail();
    }
}

发送HTML格式的邮件, 定义了两个方法, 分别发送纯HTML邮件和HTML加图片的邮件

/********************************************************************************
 * Project Name      [JavaEE_Components]
 * File Name         [SendingHtmlMails.java]
 * Creation Date     [2015-01-01]
 * 
 * Copyright© [email protected] All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ********************************************************************************/
package javamail.mail;

import java.io.File;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Message.RecipientType;
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;

import org.junit.Before;
import org.junit.Test;

import javamail.utils.MailAuthenticator;
import javamail.utils.MailConstants;
import javamail.utils.PasswordUtils;

/**
 * 使用SMTP协议发送Html格式的邮件
 * 
 * @author 不落的太阳(Sean Yang aka ShortPeace)
 * @version 1.0
 * @since jdk 1.8
 * 
 */
public class SendingHtmlMails {

    private static Properties properties = null;

    private static String emailSender = "[email protected]";
    private static String emailRecipient = "[email protected]";

    @Before
    public void init() {
        properties = new Properties();
        properties.setProperty("mail.transport.protocol", MailConstants.PROTOCOL_SMTP);
        properties.setProperty("mail.smtp.host", MailConstants.SMTP_HOST_OF_SINA);
        properties.setProperty("mail.smtp.port", MailConstants.SMTP_PORT_OF_SINA);
        properties.setProperty("mail.smtp.auth", String.valueOf(MailConstants.IS_AUTHORIZATION_NEED));
        properties.setProperty("mail.debug", String.valueOf(MailConstants.IS_DEBUG_MOD_ENABLED));
    }

    /**
     * 发送Html格式的邮件
     * 
     * @throws Exception
     */
    public static void sendHtmlMail() throws Exception {
        // 创建Session实例
        Session session = Session.getInstance(properties,
                new MailAuthenticator(emailSender, PasswordUtils.readPassword(emailSender)));
        // 创建MimeMessage实例
        MimeMessage message = new MimeMessage(session);

        // 封装Message的属性
        message.setSubject("JavaMail - Html文件");
        message.setFrom(new InternetAddress(emailSender));
        message.setSentDate(new Date());
        message.setRecipient(RecipientType.TO, new InternetAddress(emailRecipient));
        message.setContent("<span style='color:red;'>使用JavaMail发送Html邮件</span>", "text/html;charset=UTF-8");

        Transport.send(message);
    }

    /**
     * 发送Html附带图片的邮件
     * 
     * @throws Exception
     */
    public static void sendHtmlMailWithImage() throws Exception {
        // 创建Session实例
        Session session = Session.getInstance(properties,
                new MailAuthenticator(emailSender, PasswordUtils.readPassword(emailSender)));
        // 创建MimeMessage实例
        MimeMessage message = new MimeMessage(session);

        // 封装Message的属性
        message.setSubject("JavaMail - 带有图片的Html邮件", "UTF-8");
        message.setFrom(new InternetAddress(emailSender));
        message.setSentDate(new Date());
        message.setRecipient(RecipientType.TO, new InternetAddress(emailRecipient));
        // 抄送
        message.setRecipient(RecipientType.CC, new InternetAddress(emailRecipient));
        // 密送[不会在邮件收件人名单中显示出来]
        message.setRecipient(RecipientType.BCC, new InternetAddress(emailRecipient));
        message.setSentDate(new Date());

        // 创建一个related类型的MimeMultipart实例, related类型用于组合文本和图片
        MimeMultipart mailBodyMP = new MimeMultipart("related");
        // 图片部分
        MimeBodyPart imagePart = new MimeBodyPart();
        // 正文部分
        MimeBodyPart htmlPart = new MimeBodyPart();
        mailBodyMP.addBodyPart(imagePart);
        mailBodyMP.addBodyPart(htmlPart);

        // 图片
        DataSource dataSource = new FileDataSource(new File("src/javamail/attachments/1.jpg"));
        DataHandler dataHandler = new DataHandler(dataSource);
        imagePart.setDataHandler(dataHandler);
        imagePart.setContentID("image1");

        // 邮件正文
        MimeMultipart htmlMP = new MimeMultipart("alternative");
        MimeBodyPart htmlContent = new MimeBodyPart();
        // cid = imageBody.setContentID()中设置的值
        htmlContent.setContent("<span style='color:red;'>使用JavaMail发送含有图片的Html邮件<img src=\"cid:image1\"/></span>",
                "text/html;charset=utf-8");
        htmlMP.addBodyPart(htmlContent);
        htmlPart.setContent(htmlMP);

        message.setContent(mailBodyMP);

        Transport.send(message);
        // 将邮件写出到本地, 可以使用FoxMail工具打开查看
        // message.writeTo(new FileOutputStream("htmlImageMail.eml"));
    }

    @Test
    public void testSendHtmlMail() throws Exception {
        sendHtmlMail();
    }

    @Test
    public void testSendHtmlMailWithImage() throws Exception {
        sendHtmlMailWithImage();
    }
}

发送HTML+图片+附件的邮件

/********************************************************************************
 * Project Name      [JavaEE_Components]
 * File Name         [SendingMailWithAttachments.java]
 * Creation Date     [2015-01-01]
 * 
 * Copyright© [email protected] All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ********************************************************************************/
package javamail.mail;

import java.io.File;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.Message.RecipientType;
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;
import javax.mail.internet.MimeUtility;

import org.junit.Before;
import org.junit.Test;

import javamail.utils.MailAuthenticator;
import javamail.utils.MailConstants;
import javamail.utils.PasswordUtils;

/**
 * 发送带内嵌图片, 附件的邮件
 * 
 * @author 不落的太阳(Sean Yang aka ShortPeace)
 * @version 1.0
 * @since jdk 1.8
 * 
 */
public class SendingMailWithAttachments {

    private static Properties properties = null;

    private static String emailSender = "[email protected]";
    private static String emailRecipient = "[email protected]";

    @Before
    public void init() {
        properties = new Properties();
        properties.setProperty("mail.transport.protocol", MailConstants.PROTOCOL_SMTP);
        properties.setProperty("mail.smtp.host", MailConstants.SMTP_HOST_OF_SINA);
        properties.setProperty("mail.smtp.port", MailConstants.SMTP_PORT_OF_SINA);
        properties.setProperty("mail.smtp.auth", String.valueOf(MailConstants.IS_AUTHORIZATION_NEED));
        properties.setProperty("mail.debug", String.valueOf(MailConstants.IS_DEBUG_MOD_ENABLED));
    }

    /**
     * 发送Html附带附件的邮件
     * 
     * @throws Exception
     */
    public static void sendHtmlMailWithAttachment() throws Exception {
        // 创建Session实例
        Session session = Session.getInstance(properties,
                new MailAuthenticator(emailSender, PasswordUtils.readPassword(emailSender)));

        // 创建MimeMessage实例
        MimeMessage message = new MimeMessage(session);

        // 封装Message的属性
        message.setSubject("JavaMail - 带有附件的Html邮件");
        message.setSender(new InternetAddress(emailSender, "不落的太阳", "UTF-8"));
        // 设置收件人, 抄送, 密送
        message.setRecipients(RecipientType.TO,
                new Address[] { new InternetAddress(emailRecipient, "不落的太阳", "UTF-8"), });
        message.setRecipient(RecipientType.CC, new InternetAddress(emailSender, "不落的太阳", "UTF-8"));
        message.setRecipient(RecipientType.BCC, new InternetAddress(emailSender, "不落的太阳", "UTF-8"));
        // 设置优先级
        message.setHeader("X-Priority", "1");
        // 设置回执
        message.setHeader("Disposition-Notification-To", emailSender);
        // 设置回复人(收件人回复邮件时默认的对方收件人)
        message.setReplyTo(InternetAddress.parse("\"" + MimeUtility.encodeText("不落的太阳") + "\"<[email protected]>"));
        message.setSentDate(new Date());

        // 创建一个mixed类型的MimeMultipart实例, mixed类型用于组合文本, 图片, 附件等
        MimeMultipart mailContent = new MimeMultipart("mixed");

        // 附件
        MimeBodyPart attachment1 = new MimeBodyPart();
        DataSource dataSource = new FileDataSource(new File("src/javamail/attachments/1.jpg"));
        DataHandler dataHandler = new DataHandler(dataSource);
        attachment1.setFileName(MimeUtility.encodeText("附件1.jpg"));
        attachment1.setDataHandler(dataHandler);
        mailContent.addBodyPart(attachment1);

        MimeBodyPart attachment2 = new MimeBodyPart();
        dataSource = new FileDataSource(new File("src/javamail/attachments/1.txt"));
        dataHandler = new DataHandler(dataSource);
        attachment2.setFileName(MimeUtility.encodeText("附件2.txt"));
        attachment2.setDataHandler(dataHandler);
        mailContent.addBodyPart(attachment2);

        // 内容
        MimeBodyPart mailBody = new MimeBodyPart();

        // 邮件正文内容[html + image]
        MimeMultipart mailBodyMP = new MimeMultipart("related");
        MimeBodyPart imagePart = new MimeBodyPart();
        MimeBodyPart htmlPart = new MimeBodyPart();
        mailBodyMP.addBodyPart(imagePart);
        mailBodyMP.addBodyPart(htmlPart);

        // 图片
        dataSource = new FileDataSource(new File("src/javamail/attachments/1.jpg"));
        dataHandler = new DataHandler(dataSource);
        imagePart.setDataHandler(dataHandler);
        imagePart.setContentID("image1.jpg");

        // 邮件内容
        MimeMultipart htmlMP = new MimeMultipart("alternative");
        MimeBodyPart htmlContent = new MimeBodyPart();
        htmlContent.setContent("<span style='color: red'>JavaMail - 带有附件的Html邮件 <img src='cid:image1.jpg' /></span>",
                "text/html;charset=UTF-8");
        htmlMP.addBodyPart(htmlContent);
        htmlPart.setContent(htmlMP);

        mailBody.setContent(mailBodyMP);
        mailContent.addBodyPart(mailBody);

        message.setContent(mailContent);

        Transport.send(message);
    }

    @Test
    public void testSendHtmlMailWithAttachment() throws Exception {
        sendHtmlMailWithAttachment();
    }
}

最后写一个工具类, 可以生成邮件附件, 邮件正文等

/********************************************************************************
 * Project Name        [JavaEE_Components]
 * File Name         [MailUtils.java]
 * Creation Date     [2015-01-01]
 * 
 * Copyright© [email protected] All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ********************************************************************************/
package javamail.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.Authenticator;
import javax.mail.BodyPart;
import javax.mail.Flags;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
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;
import javax.mail.internet.MimeUtility;

/**
 * Email工具类
 * 
 * @author 不落的太阳(Sean Yang aka ShortPeace)
 * @version 1.0
 * @since jdk 1.8
 * 
 */
public class MailUtils {

    /**
     * 根据指定的文件名生成附件
     * 
     * @param fileName
     *            文件名
     * @return
     * @throws Exception
     */
    public static MimeBodyPart createMailAttachment(File fileName) throws Exception {
        MimeBodyPart attachment = new MimeBodyPart();
        DataSource dataSource = new FileDataSource(fileName);
        DataHandler dataHandler = new DataHandler(dataSource);
        attachment.setDataHandler(dataHandler);
        attachment.setFileName(MimeUtility.encodeText(dataSource.getName()));
        return attachment;
    }

    /**
     * 根据指定路径的文件名生成附件
     * 
     * @param filePath
     *            附件所在的文件路径
     * @return
     * @throws Exception
     */
    public static MimeBodyPart createMailAttachment(String filePath) throws Exception {
        File file = new File(filePath);
        return createMailAttachment(file);
    }

    /**
     * 根据指定的邮件正文文本和文件[图片或其他]路径生成混合的邮件文本
     * 
     * @param body
     *            邮件正文内容
     * @param filePath
     *            图片或其他文件路径
     * @return
     * @throws Exception
     */
    public static MimeBodyPart createMailBodyContent(String body, String filePath) throws Exception {
        // 内容
        MimeBodyPart mailBody = new MimeBodyPart();

        // 邮件正文内容[html + image]
        MimeMultipart mailBodyMP = new MimeMultipart("related");
        MimeBodyPart otherPart = new MimeBodyPart();
        MimeBodyPart htmlPart = new MimeBodyPart();
        mailBodyMP.addBodyPart(otherPart);
        mailBodyMP.addBodyPart(htmlPart);

        // 其他内容
        DataSource dataSource = new FileDataSource(new File(filePath));
        DataHandler dataHandler = new DataHandler(dataSource);
        otherPart.setDataHandler(dataHandler);
        otherPart.setContentID(MimeUtility.encodeText(dataSource.getName()));

        // 邮件内容
        MimeMultipart htmlMP = new MimeMultipart("alternative");
        MimeBodyPart htmlContent = new MimeBodyPart();
        htmlContent.setContent(
                "<span style='color: red'>带附件的Html邮件 <img src='cid:" + otherPart.getContentID() + "' /></span>",
                "text/html;charset=UTF-8");
        htmlMP.addBodyPart(htmlContent);
        htmlPart.setContent(htmlMP);

        mailBody.setContent(mailBodyMP);
        return mailBody;
    }

    /**
     * 根据指定的MimeBodyPart生成邮件
     * 
     * @param bodyParts
     * @return
     * @throws Exception
     */
    public static MimeMultipart createMixedBodyContent(MimeBodyPart... bodyParts) throws Exception {
        MimeMultipart mailContent = new MimeMultipart("mixed");

        for (MimeBodyPart mimeBodyPart : bodyParts) {
            mailContent.addBodyPart(mimeBodyPart);
        }

        return mailContent;
    }

    /**
     * 根据邮件内容生成eml文件
     * 
     * @param message
     * @return
     * @throws Exception
     */
    public static File createEmlFile(String dir, Message message) throws Exception {
        File file = new File(dir + MimeUtility.decodeText(message.getSubject()) + ".eml");
        message.writeTo(new FileOutputStream(file));
        return file;
    }

    /**
     * 发送已生成的eml文件
     * 
     * @param emlFile
     * @param properties
     * @param auth
     * @throws Exception
     */
    public static void sendMailFromEmlFile(File emlFile, Properties properties, Authenticator auth) throws Exception {
        Session session = Session.getInstance(properties, auth);
        sendMailFromEmlFile(emlFile, session);
    }

    /**
     * 发送已生成的eml文件
     * 
     * @param emlFile
     * @param session
     * @throws Exception
     */
    public static void sendMailFromEmlFile(File emlFile, Session session) throws Exception {
        MimeMessage message = new MimeMessage(session, new FileInputStream(emlFile));
        Transport.send(message);
    }

｝

上面邮件工具类的测试

/********************************************************************************
 * Project Name      [JavaEE_Components]
 * File Name         [MailUtilsTest.java]
 * Creation Date     [2015-01-01]
 * 
 * Copyright© [email protected] All Rights Reserved
 * 
 * Work hard, play harder, think big and keep fit
 ********************************************************************************/
package javamail.utils.test;

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

import javax.mail.Message.RecipientType;
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;

import org.junit.Before;
import org.junit.Test;

import javamail.utils.MailAuthenticator;
import javamail.utils.MailConstants;
import javamail.utils.MailUtils;
import javamail.utils.PasswordUtils;

/**
 * @author 不落的太阳(Sean Yang aka ShortPeace)
 * @version 1.0
 * @since jdk 1.8
 * 
 */
public class MailUtilsTest {

    private static Properties properties = null;

    private static String emailSender = "[email protected]";
    private static String emailRecipient = "[email protected]";

    @Before
    public void init() {
        properties = new Properties();
        properties.setProperty("mail.transport.protocol", MailConstants.PROTOCOL_SMTP);
        properties.setProperty("mail.smtp.host", MailConstants.SMTP_HOST_OF_SINA);
        properties.setProperty("mail.smtp.port", MailConstants.SMTP_PORT_OF_SINA);
        properties.setProperty("mail.smtp.auth", String.valueOf(MailConstants.IS_AUTHORIZATION_NEED));
        properties.setProperty("mail.debug", String.valueOf(MailConstants.IS_DEBUG_MOD_ENABLED));
    }

    @Test
    public void sendEmailWithEmailUtil() throws Exception {
        String fileName = "src/javamail/attachments/1.jpg";
        String bodyMessage = "<span style='color:blue'>这是由Email工具发送的邮件</span>";
        MimeBodyPart attachment = MailUtils.createMailAttachment(fileName);
        MimeBodyPart mailBody = MailUtils.createMailBodyContent(bodyMessage, fileName);
        MimeMultipart mailContent = MailUtils.createMixedBodyContent(attachment, mailBody);

        Session session = Session.getInstance(properties,
                new MailAuthenticator(emailSender, PasswordUtils.readPassword(emailSender)));
        MimeMessage message = new MimeMessage(session);
        // 封装Message的属性
        message.setSubject("工具邮件");
        message.setFrom(new InternetAddress(emailSender));
        message.setSentDate(new Date());
        message.setRecipient(RecipientType.TO, new InternetAddress(emailRecipient));
        message.setContent(mailContent);
        Transport.send(message);
    }
}

相关代码请访问我的git: http://git.oschina.net/shortpeace/JavaEE_Components