*第一步：工程中新增javamail需要的兩個jar 

地址：可以再sun官方網上去下載。 

list：mail.jar、activation.jar

*第二步：寫發郵件的屬性檔案，本人不喜歡硬編碼的方式coding。

mail.properties檔案如下：

mail.transport.protocol=smtp mail.host=smtp.gmail.com mail.smtp.auth=true mail.smtp.port=465 mail.username=xxxx mail.password=xxx mail.from=xxx@gmail.com mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory mail.smtp.socketFactory.fallback=false mail.smtp.socketFactory.port=465

MailSender.java

package com.voicesoft.utils; import java.util.Properties; import javax.activation.DataHandler; import javax.activation.DataSource; import javax.activation.FileDataSource; import javax.mail.Authenticator; 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; import org.apache.log4j.Logger; /** * @version 1.0 * @author Luo Yong <luoyong@voicesoft.cn> * Created on : 2009-9-16, 17:06:09 * Copyright© 2009 Voicesoft Communications International Inc.All rights reserved. * Description 郵件傳送器 */ public class MailSender { final static Logger logger = Logger.getLogger(MailSender.class); /** * 傳送郵件方法 * @param emailAddr * @param mailTitle * @param mailConcept * @param fileAttachment * @throws java.lang.Exception */ public static void sendMail(final String emailAddr, final String mailTitle, final String mailConcept, final String fileAttachment) throws Exception { logger.info("sending... To: " + emailAddr + " Mail Title: " + mailTitle + " fileAttachment: " + fileAttachment); Properties props = new Properties(); ClassLoader classLoader = Thread.currentThread().getContextClassLoader(); props.load(classLoader.getResourceAsStream("mail.properties")); // props.list(System.out); final String username = props.getProperty("mail.username"); final String password = props.getProperty("mail.password"); final String mailFrom = props.getProperty("mail.from"); Session mailSession = Session.getDefaultInstance(props, new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(username, password); } }); mailSession.setDebug(false); Transport transport = mailSession.getTransport(); MimeMessage message = new MimeMessage(mailSession); message.setSubject(mailTitle); message.setFrom(new InternetAddress(mailFrom)); message.setRecipients(Message.RecipientType.BCC, InternetAddress.parse( emailAddr, false)); // create the message part MimeBodyPart messageBodyPart = new MimeBodyPart(); // fill message // messageBodyPart.setText(""); messageBodyPart.setContent(mailConcept, "text/html; charset=utf-8"); Multipart multipart = new MimeMultipart(); multipart.addBodyPart(messageBodyPart); if (fileAttachment != null) { // Part two is attachment messageBodyPart = new MimeBodyPart(); DataSource source = new FileDataSource(fileAttachment); messageBodyPart.setDataHandler(new DataHandler(source)); String fileName = new String(fileAttachment.getBytes("UTF-8"), "UTF-8"); int pos = fileName.lastIndexOf("//"); //int pos = fileName.lastIndexOf(File.separator); fileName = fileName.substring(pos + 1); messageBodyPart.setFileName(fileName); multipart.addBodyPart(messageBodyPart); // Put parts in message } message.setContent(multipart); transport.connect(); transport.sendMessage(message, message.getRecipients(Message.RecipientType.BCC)); transport.close(); logger.info("end! To: " + emailAddr + " Mail Title: " + mailTitle + " fileAttachment: " + fileAttachment); } /** * 非同步方式傳送郵件 * @param emailAddr * @param mailTitle * @param mailConcept * @param fileAttachment */ public static void sendMailByAsynchronous(final String emailAddr, final String mailTitle, final String mailConcept, final String fileAttachment) { new Thread(new Runnable() { public void run() { try { MailSender.sendMail(emailAddr, mailTitle, mailConcept, fileAttachment); } catch (Exception ex) { logger.error("mail sender error To: " + emailAddr + " Mail Title: " + mailTitle + " fileAttachment: " + fileAttachment, ex); } } }).start(); } public static void main(String[] args) throws Exception { MailSender.sendMail("debug4job@gmail.com", "系統異常郵件報告1", "這裡是呼叫中心管理系統的異常報告內容", "D://123.jpg"); MailSender.sendMail("debug4job@gmail.com", "系統異常郵件報告2", "這裡是呼叫中心管理系統的異常報告內容", "D://123.jpg"); } }