public static String  username="z63as";  发送者的用户名
     public static String  password="%";  发送者的密码
     public static String  FromAddress = "[email protected]"; 发送地址（从rs中得到）
     public static String  toAddress = "[email protected]"; 发送地址（从rs中得到）
     public static String subject = "问候 "; 邮件主题
     public static String content = "hello world" ; 邮件内容
     public static void main(String args[])throws Exception{
         JavaMailSenderImpl mailSender=new JavaMailSenderImpl();
         Properties properties=new Properties();
         properties.setProperty("mail.smtp.auth","true");
         properties.put("mail.smtp.host","smtp.126.com");
         mailSender.setJavaMailProperties(properties);
         mailSender.setHost("smtp.126.com");
         mailSender.setPort(25);
         mailSender.setUsername(username);
         mailSender.setPassword(password);
         MimeMessage mimeMessage=mailSender.createMimeMessage();
         MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
         messageHelper.setFrom(FromAddress, "XXX");
         messageHelper.setSubject("Hello world");
         messageHelper.setTo(toAddress);
         messageHelper.setText(content, true);   html: true
 
        mailSender.send(mimeMessage);    发送邮件

   }