Java代写：CS207 Hotel Booking Application

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Hotel booking application，在软件工程中叫做Hotel reservation system，也就是酒店管理系统。这类系统的开发工作量，主要是根据需求，来实现其业务逻辑部分。

Introduction

一个成熟的酒店管理系统，还可以接入或被接入其他系统。只要做好接口设计，给出稳定、可拓展的接口，这类系统便可以反复利用。
当然，对于酒店管理系统的重构，也是十分头疼的一件事。由于要逐个梳理需求，在重构中要避免需求的落下。

Requirement

Below are the features of this project that you should implement in this course.

  1. As a user, he can login with a username and password and launch the hotel booking application.
  2. As a user, he can search available rooms in the hotel by entering a departure date, and book the standard room, big bed room or business suite room.
  3. As a user, he can display search results sorted by floor, cost and date.
  4. As a user, he can cancel the reservation room.
  5. This application will use a txt file to load the user’s information. The file should contains the following properties:
    LastName, FirstName, Gender, Age, Email, CreditCardNumber, BillingAddress, ExpriyDate.

Analysis

本次需求需要实现酒店管理系统的一部分业务功能，即用户使用部分，包括了用户登录、预订查询、查询排序、预定房间和预订取消等功能。代码的实现需要结合所给出的框架来完成，因此熟悉框架的结构成为了一个不可缺少的过程。

需要注意的是，对于此类系统，一个通用的设计模型是：先判断传入参数和合法性，再判断是否拥有执行权限，最后再做相关业务逻辑。

Tips

下面给出emailAddress地址的业务逻辑代码

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public class Driver {
  public static boolean validateEmailAddress(String emailAddress) {
    if (emailAddress == null || emailAddress.equals("")) {
      return false;
    }
    Pattern p = Pattern.compile("\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*");
    Matcher m = p.matcher(emailAddress);  
    return m.matches();
  }

  public static String getEmailAddress(String emailAddress) {
    if (validateEmailAddress(emailAddress) == false) {
      throw new EmailException(emailAddress);
    }
    // do business logic
    ...
  }
}