JavaMail发送邮件（含附件）的例子

package com.mogoko.common.email;

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验证
props.setProperty("mail.smtp.host", smtpHost); //指定SMTP服务器
props.put("mail.transport.protocol", "smtp"); //指定传输协议

Session mailSession = Session.getDefaultInstance(props);
mailSession.setDebug(false); //是否在控制台显示debug信息

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

InternetAddress fromAddress = new InternetAddress(from); //From Mail
InternetAddress toAddress = new InternetAddress(to); //To Mail

MimeMessage mimeMessage = new MimeMessage(mailSession);
mimeMessage.setFrom(fromAddress);
mimeMessage.addRecipient(javax.mail.Message.RecipientType.TO, toAddress);

mimeMessage.setSentDate(new java.util.Date());
mimeMessage.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 fileDataSource = new FileDataSource("E:\\a.zip");
fileBodyPart.setDataHandler(new DataHandler(fileDataSource));
fileBodyPart.setFileName(fileDataSource.getName());
//添加附件
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
mimeMessage.setContent(container);

System.out.println("Message constructed");

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

System.out.println("Message sent!");
}
/*
 * 测试发送邮件
 */

//+++++++++++++++++++++++++++++++++++++++++++++++
public static void main(String[] args) {

String fileName = "b.zip";
String smtpHost = "smtp.163.com";
String from = "biansutao@163.com"; //必须与transport.connect(smtpHost, "username1", "pwd1");的username1一样
String to = "biansutao@163.com";
String subject = "邮件测试从mogoko"; //subject javamail自动转码
StringBuffer theMessage = new StringBuffer();
theMessage.append("邮件测试");

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