用Java发送图文并茂的HTML邮件

package com.syj;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.Arrays;import java.util.Date;import java.util.Properties;import javax.activation.DataHandler;import javax.activation.DataSource;import javax.activation.FileDataSource;import javax.mail.Authenticator;import javax.mail.BodyPart;import javax.mail.Message;import javax.mail.Multipart;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;/** * <p> * Title:用java发送邮件的例子 * </p> *  * <p> * Description:发送图片附件并在html中使用该图片 * </p> *  * <p> * Copyright: Copyright (c) 2007 * </p> *  * @author 孙钰佳  * @blog http://blog.csdn.net/sunyujia/ * @main [e-mail] * @date Jun 10, 2008 12:35:26 AM */public class SendMail {private static String username = "xxxx";private static String password = "xxxx";private static String smtpServer = "smtp.163.com";private static String fromMailAddress = "[e-mail]";private static String toMailAddress = "[e-mail]";public static void main(String[] args) throws Exception {Properties props = new Properties();props.put("mail.smtp.auth", "true");props.put("mail.smtp.host", smtpServer);// 获得邮件会话对象Session session = Session.getDefaultInstance(props,new SmtpAuthenticator(username, password));/** *************************************************** */// 创建MIME邮件对象MimeMessage mimeMessage = new MimeMessage(session);mimeMessage.setFrom(new InternetAddress(fromMailAddress));// 发件人mimeMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(toMailAddress));// 收件人mimeMessage.setSubject("主题");mimeMessage.setSentDate(new Date());// 发送日期Multipart mp = new MimeMultipart("related");// related意味着可以发送html格式的邮件/** *************************************************** */BodyPart bodyPart = new MimeBodyPart();// 正文bodyPart.setDataHandler(new DataHandler("测<img src=/"cid:IMG1/" />试","text/html;charset=GBK"));// 网页格式/** *************************************************** */BodyPart attachBodyPart = new MimeBodyPart();// 普通附件FileDataSource fds = new FileDataSource("c:/boot.ini");attachBodyPart.setDataHandler(new DataHandler(fds));attachBodyPart.setFileName("=?GBK?B?"+ new sun.misc.BASE64Encoder().encode(fds.getName().getBytes())+ "?=");// 解决附件名中文乱码mp.addBodyPart(attachBodyPart);/** *************************************************** */MimeBodyPart imgBodyPart = new MimeBodyPart(); // 附件图标byte[] bytes = readFile("C:/button.gif");ByteArrayDataSource fileds = new ByteArrayDataSource(bytes,"application/octet-stream");imgBodyPart.setDataHandler(new DataHandler(fileds));imgBodyPart.setFileName("button.gif");imgBodyPart.setHeader("Content-ID", "<img1></img1>");// 在html中使用该图片方法src="cid:IMG1"mp.addBodyPart(imgBodyPart);/** *************************************************** */mp.addBodyPart(bodyPart);mimeMessage.setContent(mp);// 设置邮件内容对象Transport.send(mimeMessage);// 发送邮件}/** * 读取文件 *  * @param file *            文件路径 * @return 返回二进制数组 */public static byte[] readFile(String file) {FileInputStream fis = null;ByteArrayOutputStream bos = null;try {fis = new FileInputStream(file);bos = new ByteArrayOutputStream();int bytesRead;byte buffer[] = new byte[1024 * 1024];while ((bytesRead = fis.read(buffer)) != -1) {bos.write(buffer, 0, bytesRead);Arrays.fill(buffer, (byte) 0);}} catch (IOException e1) {e1.printStackTrace();} finally {try {if (bos != null)bos.close();} catch (IOException e) {e.printStackTrace();}}return bos.toByteArray();}}/** * Smtp认证 */class SmtpAuthenticator extends Authenticator {String username = null;String password = null;// SMTP身份验证public SmtpAuthenticator(String username, String password) {this.username = username;this.password = password;}public PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(this.username, this.password);}}class ByteArrayDataSource implements DataSource {private final String contentType;private final byte[] buf;private final int len;public ByteArrayDataSource(byte[] buf, String contentType) {this(buf, buf.length, contentType);}public ByteArrayDataSource(byte[] buf, int length, String contentType) {this.buf = buf;this.len = length;this.contentType = contentType;}public String getContentType() {if (contentType == null)return "application/octet-stream";return contentType;}public InputStream getInputStream() {return new ByteArrayInputStream(buf, 0, len);}public String getName() {return null;}public OutputStream getOutputStream() {throw new UnsupportedOperationException();}}

原文地址：http://blog.csdn.net/sunyujia/article/details/2528696#comments