Goods:注册页面保存User功能发送邮件以及激活功实现

UserService

// 激活功能更
    public void activation(String code) throws UserException {
        /*
         * 1通过激活码查询用户 2如果用户为Null说明是无效激活码 抛出异常 给出异常信息 3、查看用户状态为true
         */

        try {
            User user = userDao.findByCode(code);
            if (user == null)
                throw new UserException("无效的激活码");
            if (user.isStatus())
                throw new UserException("您已经激活过了，不能二次激活！");
            userDao.updateStatus(user.getUid(), true);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            throw new RuntimeException(e);
        }
    }

    // 注册功能
    public void regist(User user) {
        // 1、数据的补齐
        user.setUid(CommonUtils.uuid()); // commonUtils用来生成唯一的码
        user.setStatus(false);
        user.setActivationCode(CommonUtils.uuid() + CommonUtils.uuid());
        // 2、项数据库中插入

        try {
            userDao.add(user);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        /*
         * 3、发邮件
         */
        Properties prop = new Properties();
        // 加载配置文件
        try {
            prop.load(this.getClass().getClassLoader()
                    .getResourceAsStream("email_template.properties"));
        } catch (IOException e1) {
            throw new RuntimeException(e1);
        }
        // 登录邮件服务器得到session 发送mail对象
        String host = prop.getProperty("host");// 服务器主机名
        String username = prop.getProperty("username");// 登录名
        String password = prop.getProperty("password");
        Session session = MailUtils.createSession(host, username, password);

        // 创建mail对象
        String from = prop.getProperty("from");
        String to = user.getEmail();
        String subject = prop.getProperty("subject"); // 主题
        // messageformat用来替换占位符 pattern中的{0}{1}{2}占位符用第二个，第三个，第四个参数来替换
        String content = MessageFormat.format(prop.getProperty("content"),
                user.getActivationCode());

        try {
            MailUtils.send(session, new Mail(from, to, subject, content));
        } catch (MessagingException e) {
            throw new RuntimeException(e);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

    }

UserDao

/通过激活码查询用户
    public User findByCode(String code)
    {
        String sql="select * from t_user where activationCode=?";
        try {
            return qr.query(sql, new BeanHandler<User>(User.class),code);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            throw new RuntimeException(e);
        }
    }
    //更新激活状态
    public void updateStatus(String uid,boolean status) throws SQLException
    {
        String sql="update t_user set status=? where uid=?";
        qr.update(sql,status,uid);
        
    }

UserServlet

// 注册功能
    public String regist(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        // 1、封装表单数据到user对象中
        User formUser = CommonUtils.toBean(req.getParameterMap(), User.class);

        // 2、校验 如果校验 失败 保存错误信息返回到regist页面显示

        /*
         * 调用validateRegist方法，检验Map是否为空 如果为空 则说明没有错误信息 否则
         * 则有错误新信息，把map保存到request中 转发到regist.jsp
         */
        Map<String,String> errors= validateRegist(formUser, req.getSession());
        if(errors.size()>0)
        {  //错误信息的时候 把表单数据带回去
            req.setAttribute("form", formUser);
           req.setAttribute("errors", errors);
        return "f:/jsps/user/regist.jsp";
        }
        // 3、使用service完成业务
        userService.regist(formUser);

        // 4、保存成功信息转发到msg.jsp显示
        req.setAttribute("code", "success");
        req.setAttribute("msg", "注册成功，请马上到邮箱激活");
        return "f:/jsps/msg.jsp"; // f代表转发 入request里面放有东西 BaseServlet实现的转发
    }

    // 完成注册校验功能  对表单的字段进行逐个校验

    private Map<String, String> validateRegist(User formUser,HttpSession session) {
        Map<String, String> errors = new HashMap<String, String>();
        // 校验用户名
        String loginname = formUser.getLoginname();
        if (loginname == null || loginname.trim() == null)
            errors.put("loginname", "用户名不能为空");
        else if (loginname.length() < 3 || loginname.length() > 20)
            errors.put("loginname", "用户名长度必须在3-20字符中");
        else if (!userService.ajaxValidateLoginname(loginname))
            errors.put("loginname", "用户名已被注册");
        // 校验登录密码
        String loginpass = formUser.getLoginpass();
        if (loginpass == null || loginpass.trim() == null)
            errors.put("loginpass", "密码不能为空");
        else if (loginpass.length() < 3 || loginpass.length() > 20)
            errors.put("loginpass", "密码长度必须在3-20字符中");
        // 确认密码校验
        String reloginpass = formUser.getReloginpass();
        if (reloginpass == null || reloginpass.trim() == null)
            errors.put("reloginpass", "密码不能为空");
        else if (reloginpass.length() < 3 || reloginpass.length() > 20)
            errors.put("reloginpass", "密码长度必须在3-20字符中");
        else if(!reloginpass.equals(loginpass))
            errors.put("reloginpass", "，两次输入密码不一致");
        
        //email校验
        String email = formUser.getEmail();
        if (email == null || email.trim() == null)
            errors.put("email", "email不能为空");
        else if (!email.matches("^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$"))
            errors.put("email", "email格式不正确");
        else if (!userService.ajaxValidateEmail(email))
            errors.put("email", "email已被注册");
        
        //验证码校验
       String verifyCode=formUser.getVerifyCode();
       String vCode=(String) session.getAttribute("vCode");
       if (verifyCode == null || verifyCode.trim() == null)
            errors.put("verifyCode", "验证码不能为空");
        else if (!verifyCode.equalsIgnoreCase(vCode))
            errors.put("verifyCode", "验证码错误！");
       
        return errors;
        

    }

    // 激活功能
    public String activation(HttpServletRequest req, HttpServletResponse resp) {
        //System.out.println("activation");
        //1、获取激活码 
        //2、交给service 的 activation功能来激活
        //service方法可能跑出异常 把异常信息拿来保存到request中
        //转发到msg.jsp显示
        String code=req.getParameter("activationCode");
        try {
            userService.activation(code);
            req.setAttribute("code", "success");
            req.setAttribute("msg", "恭喜激活成功，请马上登录！");
        } catch (UserException e) {
            req.setAttribute("msg", e.getMessage());
            req.setAttribute("code", "error");
            
        }
        return "f:/jsps/msg.jsp";
    }
}