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Spring发送邮件

SpringGmailFreeBSDBean.net 
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JavaMail API为Java提供了邮件发送和接受服务，支持常见的邮件协议 SMTP IMAP POP3，

发送纯文本邮件 
public class Main {
  public static void main(String[] args) throws AddressException,
      MessagingException {
    // 直接使用JavaMail API:
    Properties props = new Properties();
    // 设置SMTP服务器:
    props.put("mail.smtp.host", "smtp.gmail.com");
    props.put("mail.smtp.port", "465");
    props.put("mail.smtp.auth", "true");
    // 使用SSL安全连接:
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
    send(props, "livebookstore", // Username
        "LiVe-BoOkStOrE", // Password
        "livebookstore@gmail.com", // From
        new String[] { "livebookstore2@gmail.com" }, // To
        "A test mail", // Subject
        "测试使用JavaMail API发送邮件" // Text
    );
  }
  public static void send(Properties props, final String username,
      final String password, String from, String[] to, String subject,
      String text) throws AddressException, MessagingException {
    Session session = Session.getInstance(props, new Authenticator() {
      protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(username, password);
      }
    });
    session.setDebug(true);
    Message message = new MimeMessage(session);
    message.setFrom(new InternetAddress(from));
    message.setSubject(subject);
    message.setText(text);
    message.setSentDate(new Date());
    Address[] addressTo = new Address[to.length];
    for (int i = 0; i < to.length; i++) {
      addressTo[i] = new InternetAddress(to[i]);
    }
    message.setRecipients(Message.RecipientType.TO, addressTo);
    message.saveChanges();
    Transport.send(message, addressTo);
  }
}


Spring提供了非常方便的Mail抽象层，它通过一个MailSender接口，封装了邮件发送Bean，
而SimpleMailMessage封装了纯文本的简单邮件

把发送邮件的STMP配置注入Bean中 
  <!-- 配置MailSender -->
  <bean id="mailSender"  
    class="org.springframework.mail.javamail.JavaMailSenderImpl">
    <property name="host" value="smtp.gmail.com" />
    <property name="port" value="465" />
    <property name="username" value="livebookstore" />
    <property name="password" value="LiVe-BoOkStOrE" />
    <property name="javaMailProperties">
      <props>
        <prop key="mail.smtp.auth">true</prop>
        <prop key="mail.smtp.starttls.enable">true</prop>
        <prop key="mail.smtp.socketFactory.class">
          javax.net.ssl.SSLSocketFactory
        </prop>
     </props>
    </property>
  </bean>


  // 使用Spring提供的MailSender:
  ApplicationContext context = new ClassPathXmlApplicationContext(
      "config.xml");
  JavaMailSender mailSender = (JavaMailSender) context.getBean("mailSender");
  sentBySpring(mailSender);

  private static void sentBySpring(JavaMailSender mailSender) {
    // 创建一个纯文本邮件:
    SimpleMailMessage mail = new SimpleMailMessage();
    mail.setFrom("livebookstore@gmail.com");
    mail.setTo("livebookstore2@gmail.com");
    mail.setSubject("Another test mail");
    mail.setText("测试使用Spring MailSender发送邮件");
    // 发送:
    mailSender.send(mail);
  }




发送Mime邮件
Spring提供助手类MimeMessageHepler，能方便的操作MimeMessage
  
private static void sentMime(JavaMailSender mailSender)
      throws MessagingException {
    // 发送Mime邮件:
    MimeMessage mime = mailSender.createMimeMessage();
    MimeMessageHelper helper = new MimeMessageHelper(mime, true, "UTF-8");
    helper.setFrom("livebookstore@gmail.com");
    helper.setTo("livebookstore2@gmail.com");
    helper.setSubject("Test mime mail");
    // 设定为HTML格式:
    helper.setText("<html><body>访问Live在线书店：<br>"
        + "<a href='http://www.livebookstore.net' target='_blank'>"
        + "<img src='cid:logo'></a></body></html>", true);
    // 添加附件嵌入HTML中显示，在img标签中用"cid:xxx"，
    // 对应附件通过addInline()添加
    helper.addInline("logo", new ClassPathResource("logo.gif"));
    helper.addAttachment("freebsd.gif", new ClassPathResource("freebsd.gif"));
    // 发送:
    mailSender.send(mime);
  }
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