基于java的电子订餐实践文档

目 录

1 项目介绍......................................................................................................................... IV

1.1 项目简介...................................................................................................................IV

1.2 项目背景与可行性分析............................................................................................IV

1.3术语与缩写解释........................................................................................................IV

2 需求分析.......................................................................................................................... V

2.1 产品介绍....................................................................................................................V

2.2 产品面向的用户群体.................................................................................................V

2.4.5

结帐付款

.............................................................................................................VI

2.4.6

结束订餐

.............................................................................................................VI

2.4.7

管理员的操作

.....................................................................................................VI

2.5 产品的非功能性需求...............................................................................................VII

2.5.1

用户界面需求

....................................................................................................VII

2.5.2

软硬件环境需求

................................................................................................VII

2.5.3

产品质量需求

....................................................................................................VII

2.5.4

其他需求

...........................................................................................................VII

3 数据库设计.................................................................................................................. VIII

3.1 数据库环境声明.....................................................................................................VIII

3.4.4

表

3.4.5

3.5 安全性设计................................................................................................................ X

3.6 数据库管理与维护说明............................................................................................XI

4 界面设计.......................................................................................................................XII

4.1 界面关系图.............................................................................................................. XII

4.2 主界面.................................................................................................................... XIII

4.3 子界面——用户注册界面......................................................................................XIII

4.4 子界面——菜品详情介绍界面..............................................................................XIV

4.5 子界面——单个菜品信息界面..............................................................................XIV

5 系统设计................................................................................................................... XVIII

5.1 模块命名规则......................................................................................................XVIII

5.2 模块汇总.............................................................................................................. XVIII

5.2.1

模块汇总表

5.2.2

模块关系图

5.3 程序结构.................................................................................................................XX

5.3.1

数据库连接类

....................................................................................................XX

5.3.2

用户相关操作类

...............................................................................................XXI

5.3.3

5.3.4

...........................................................................................XXII

6.1 连接数据库.......................................................................................................... XXVI

6.2 关闭数据库.......................................................................................................... XXVI

6.2.1

关闭

Connection

对象

.......................................................................................XXVI

6.2.2

关闭

PreparedStatement

对象

...........................................................................XXVI

6.2.3

关闭

ResultSet

对象

.........................................................................................XXVII

6.3 用户登录PUBLIC INT ISEXIST(STRING NAME, STRING PASSWORD).........................XXVII

6.4 查询菜单信息PUBLIC ARRAYLIST SHOWMENU(...................................................XXVII

6.5 查询购物车信息PUBLIC ARRAYLIST SHOWCART(STRING TIME)..........................XXVIII

6.6 添加购物车中菜品信息PUBLIC INT ADDCART(CARTBEAN CB)...........................XXVIII

6.7 修改购物车中已购买的菜品信息PUBLIC INT UPCART(CARTBEAN CB, INT NUM). .XXIX

7 系统测试.................................................................................................................... XXXI

8 用户手册.................................................................................................................XXXIII