app的开发过程（一）

登录模块

用户忘记密码,获取验证码

@RequestMapping(value = "/forApp/denglu.jspx")
	public void getNewregister(HttpServletRequest request,
			HttpServletResponse response, ModelMap model) throws Exception {
		
		response.addHeader("Access-Control-Allow-Origin", "*");
		response.setContentType("text/plain;charset=UTF-8");
		response.setHeader("Pragma", "No-cache");
		response.setHeader("Cache-Control", "no-cache");
		response.setDateHeader("Expires", 0);
		PrintWriter out = response.getWriter();
		//输入注册信息
		 String email = request.getParameter("email");
		 //判断是否为空，可根据项目自身进行判断
		if (!BaseAppUtils.isEmptyAfterTrim(email)
				&& !BaseAppUtils.isEmptyAfterTrim(email)) {
				//获取验证码
			randomSecurity = EmailUtils.sendApps(email,request);
			if(randomSecurity!=null){
				//out.println(BaseAppUtils.SUCCESS());
				BaseAppUtils.responseStr(response, "成功");
				out.flush();
				out.close();
			}else{
				//out.println(BaseAppUtils.FAIL_ORC("验证码发送失败"));
				BaseAppUtils.responseStrError(response, "验证码发送失败");
				out.flush();
				out.close();
			}
			
		}else{
			//out.println(BaseAppUtils.FAIL_ORC("邮箱为空"));
			BaseAppUtils.responseStrError(response, "邮箱为空");
			out.flush();
			out.close();
		}
		
	}

public static Map<String,String> sendApps(String email, HttpServletRequest request)
	{
		int random=((int)(Math.random()*9000+1000));
		try {
			// 将旧的验证码移除
			randomSecurity.remove(email);
			//request.getSession().setAttribute(appToken, String.valueOf(random));
			// 向map中放入新的验证码
			randomSecurity.put(email, String.valueOf(random));
			// 发件人的账号
			String userName = "x'x'xxxx.com";
			// 账号密码
			String password = "xxxx";
			//阿里云邮箱服务地址
			String smtp_server = "smtp.mxhichina.com";
			
			//发件人
			String from_mail_address = userName;
			//收件人
			String to_mail_address = email;
			
			// 构建授权信息，用于进行SMTP进行身份验证
			Authenticator auth = new PopupAuthenticator(userName, password);
			
			// 配置发送邮件的环境属性
			Properties mailProps = new Properties();
			//账号密码
			mailProps.put("mail.user", userName);
			mailProps.put("mail.password", password);
			// 表示SMTP发送邮件，需要进行身份验证
			mailProps.put("mail.smtp.host", smtp_server);
			mailProps.put("mail.smtp.port", "25");
			mailProps.put("mail.smtp.auth", "true");
			// 使用环境属性和授权信息，创建邮件会话
			Session mailSession = Session.getDefaultInstance(mailProps, auth);
			mailSession.setDebug(true);
			//邮件昵称
			String nick=javax.mail.internet.MimeUtility.encodeText("xxx");
			
			// 创建邮件消息
			MimeMessage message = new MimeMessage(mailSession);
			// 设置发件人
			message.setFrom(new InternetAddress(nick+" <"+from_mail_address+">"));
			// 设置收件人
			message.setRecipient(Message.RecipientType.TO, new InternetAddress(
					to_mail_address));
			// 设置邮件标题
			message.setSubject("xxx");
			
			MimeMultipart multi = new MimeMultipart();
			BodyPart textBodyPart = new MimeBodyPart();
			//发送邮件内容
			textBodyPart.setContent(""
					+ "您好：您的旅日侨网邮箱验证码为:
"+random+"
"
					+ "
"
					+ "
此邮件为"
					+ "系统自动发送，请勿回复。", "text/html;charset=utf-8");
			multi.addBodyPart(textBodyPart);
			message.setContent(multi);
			message.saveChanges();
			//发送
			Transport.send(message);
		} catch (Exception ex) {
			System.err.println("邮件发送失败的原因是：" + ex.getMessage());
			System.err.println("具体的错误原因");
			ex.printStackTrace(System.err);
			return null;
		}
		return randomSecurity;
	}