JavaMail发送邮件

最近用到邮件发送功能，就搜了一下文章，看了下，当然也可以直接看javamail的帮助文档。如果找到一篇好文章，上手还是挺快的，这有篇关于javamail的不错文章，推荐下：

http://blog.csdn.net/chjttony/article/details/6005235。好东西就要分享，呵呵...

发送纯文本或html格式的邮件

public boolean sendEmail(String propsFile, String to, String title,String content,boolean isHtml) {//创建邮件配置属性Properties props = new Properties();boolean result = false;try {//邮件服务器地址String host = PropertiesUtil.getProperties("mail.smtp.host", propsFile);//发件人邮箱登陆账号String username = PropertiesUtil.getProperties("username", propsFile);//发件人邮箱登陆密码(加密后的,需要解密)String password = PropertiesUtil.getProperties("password", propsFile);//发件人邮箱String from = PropertiesUtil.getProperties("from", propsFile);/*1.设置连接会话属性*///邮件发送服务器地址props.put("mail.smtp.host",host );//连接邮件服务器时是否验证props.put("mail.smtp.auth", "true");//创建邮件会话Session session = Session.getInstance(props);//设置调试模式,可以打印邮件发送过程信息session.setDebug(true);/*2.创建邮件对象*///由会话对象创建消息对象Message message = new MimeMessage(session);/*3.设置邮件相关信息*///发件人地址InternetAddress fromAddress = new InternetAddress(from);//设置发件人地址message.setFrom(fromAddress);//设置收件人InternetAddress toAddress = new InternetAddress(to);//设置收件人接收类型为TOmessage.setRecipient(Message.RecipientType.TO, toAddress);//设置邮件主题message.setSubject(title);//设置邮件内容if(isHtml){//html格式message.setContent(content,"text/html;charset=gb2312");}else{//纯文本message.setText(content);}//设置邮件发送时间message.setSentDate(new Date());/*4.发送邮件*///存储邮件信息message.saveChanges();//创建邮件发送对象,并指定发送协议为SMTPTransport transport = session.getTransport("smtp");//登陆邮箱服务器transport.connect(host, username, CyptUtil.decrypt(password));//发送邮件transport.sendMessage(message, message.getAllRecipients());//关闭连接transport.close();result = true;} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} catch (AddressException e) {e.printStackTrace();} catch (MessagingException e) {e.printStackTrace();}return result;}

其中PropertiesUtil和CyptUtil是两个工具类，前者是用来从property配置文件读取邮件服务器配置参数，代码中可以直接替换为自己的配置选项。CyptUtil是用来加密和解密的，密码当然需要加密，此处可以直接去掉CyptUtil.decrypt()方法，使用明文密码.

发送带附件的邮件：

public boolean sendEmailWithMultipart(String propsFile, String to,String title, String content, String filename) {boolean result = false;Properties props = new Properties();try {String host = PropertiesUtil.getProperties("mail.smtp.host", propsFile);String username = PropertiesUtil.getProperties("username", propsFile);String password = PropertiesUtil.getProperties("password", propsFile);String from = PropertiesUtil.getProperties("from", propsFile);//1.设置属性props.put("mail.smtp.host", host);props.put("mail.smtp.auth", true);//2.创建会话Session session = Session.getInstance(props);session.setDebug(true);//3.创建消息体(HTML格式发送邮件内容)Message message = new MimeMessage(session);message.setFrom(new InternetAddress(from));message.setRecipient(RecipientType.TO, new InternetAddress(to));message.setSubject(title);//4.创建附件内容对象(mime类型邮件)//bodyPart对象是用来存放信件内容的BodyPart textBodyPart = new MimeBodyPart(); //存放文本内容textBodyPart.setContent(content, "text/html;charset=gb2312");BodyPart messageBodyPart = new MimeBodyPart(); //存放附件内容//5.设置附件内容对象的数据源和dataHandler//建立附件数据源,如果是通过url传输,则需要使用UrlDataSource(url)DataSource source = new FileDataSource(filename);//设置附件的DataHandlermessageBodyPart.setDataHandler(new DataHandler(source));//设置附件的名称messageBodyPart.setFileName(filename);//6.创建附件对象//新建一个附件对象用来存放一个或多个BodyPart对象Multipart multipart = new MimeMultipart();//将附件内容对象加入到附件对象中multipart.addBodyPart(textBodyPart);multipart.addBodyPart(messageBodyPart);//7.添加附件对象到消息体message.setContent(multipart);message.setSentDate(new Date());message.saveChanges();//8.发送邮件Transport transport = session.getTransport("smtp");transport.connect(host, username, CyptUtil.decrypt(password));transport.sendMessage(message, message.getAllRecipients());transport.close();result = true;} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} catch (AddressException e) {e.printStackTrace();} catch (MessagingException e) {e.printStackTrace();}return result;}