// post方式发送email
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		File file = doAttachment(request);
		EmailAttachment attachment = new EmailAttachment();
		attachment.setPath(file.getPath());
		attachment.setDisposition(EmailAttachment.ATTACHMENT);
		attachment.setName(file.getName());
		MultiPartEmail email = new MultiPartEmail();
		email.setCharset("UTF-8");
		email.setHostName("smtp.sina.com");
		email.setAuthentication("T-GWAP", "dangdang");
		try {
			email.addTo(parameters.get("to"));
			email.setFrom(parameters.get("from"));
			email.setSubject(parameters.get("subject"));
			email.setMsg(parameters.get("body"));
			email.attach(attachment);
			email.send();
			request.setAttribute("sendmail.message", "邮件发送成功!");
		} catch (EmailException e) {
			Logger logger = Logger.getLogger(SendAttachmentMailServlet.class);
			logger.error("邮件发送不成功", e);
			request.setAttribute("sendmail.message", "邮件发送不成功!");
		}
		request.getRequestDispatcher("/sendResult.jsp").forward(request,
				response);
	}