设计模式大作业蛋糕预定系统实验报告.docx
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设计模式大作业蛋糕预定系统实验报告
蛋
糕
订
购
系
统
一、实验介绍
………………………………………………3
二、实验环境
………………………………………………3
三、系统流程
………………………………………………3
四、系统总类图
………………………………………………4
五、程序源代码及各个模块子类图
………………………………………………5
六、程序运行截图
…………………………………………….22
七、实验总结
…………………………………………….22
一、实验介绍
本系统使用了简单工厂模式、工厂方法模式、单例模式、门面模式、策略模式、观察者模式一共6种模式实现了从蛋糕店订购订购蛋糕的这样一个系统。
二、实验环境
Windows操作系统、MyEclipse10.0、MySQL5.5、jdk1.6
三、系统流程
四、系统总类图
五、程序源代码及各个模块子类图
（一）测试类Client.java：
packagenet.xsl.ordercake.test;
importnet.xsl.ordercake.discount.DiscountStyleThree;
importnet.xsl.ordercake.discount.OrderCake;
importnet.xsl.ordercake.order.CakeShop;
importnet.xsl.ordercake.order.EastVilla;
importnet.xsl.ordercake.order.WestVilla;
publicclassClient{
publicstaticvoidmain（Stringarg[]）{
CakeShopstarCakeShop=CakeShop.getCakeShop（）;
newWestVilla（starCakeShop,"草莓水果"）;
starCakeShop.getNewName（"西13"）;
starCakeShop.notifyCustomer（）;
OrderCakecake=newOrderCake（）;
System.out.println（"今日促销一律8折优惠"）;
cake.setM（8）;
cake.setStyle（newDiscountStyleThree（））;
cake.setPrice（80）;
System.out.println（"本次订购成功完成，需要支付的金额为"+cake.getMoney（cake.getPrice（）,cake.getM（））+"，原价80"）;
System.out.println（"================================="）;
newEastVilla（starCakeShop,"甜奶"）;
starCakeShop.getNewName（"东18"）;
starCakeShop.notifyCustomer（）;
System.out.println（"================================="）;
starCakeShop.getNewName（"东12"）;
starCakeShop.notifyCustomer（）;
}
}
（二）折扣的接口和方法（策略模式）：
a）接口DiscountStyle.java：
packagenet.xsl.ordercake.discount;
publicinterfaceDiscountStyle{
publicdoubledisCount（doubleprice,doublem）;
}
b）折方式一DiscountStyleOne.java：
packagenet.xsl.ordercake.discount;
publicclassDiscountStyleOneimplementsDiscountStyle{
publicdoubledisCount（doubleprice,doublem）{
returnprice;
}
}
c）打折方式二DiscountStyleTwo.java：
packagenet.xsl.ordercake.discount;
publicclassDiscountStyleTwoimplementsDiscountStyle{
publicdoubledisCount（doubleprice,doublem）{
price=price-m;
returnprice;
}
}
d）打着方式三DiscountStyleThree.java：
packagenet.xsl.ordercake.discount;
publicclassDiscountStyleThreeimplementsDiscountStyle{
publicdoubledisCount（doubleprice,doublem）{
price=price*m/10;
returnprice;
}
}
e）订蛋糕对象类，使用了get/set方法OrderCake.java：
packagenet.xsl.ordercake.discount;
publicclassOrderCake{
doublemoney,price;//money是打折后的最终价格，price是原价
DiscountStylestyle;
doublem;
publicdoublegetMoney（doubleprice,doublem）{
returnstyle.disCount（price,m）;
}
publicvoidsetPrice（doubleprice）{
this.price=price;
}
publicdoublegetPrice（）{
returnprice;
}
publicvoidsetStyle（DiscountStylestyle）{
this.style=style;
}
publicDiscountStylegetStyle（）{
returnstyle;
}
publicvoidsetM（doublem）{
this.m=m;
}
publicdoublegetM（）{
returnm;
}
}
（三）顾客向蛋糕订购蛋糕（观察者模式），并在具体主题中使用了单例模式
a）主题Shop.java：
packagenet.xsl.ordercake.order;
publicinterfaceShop{
publicvoidaddCustomer（Customero）;
publicvoiddeleteCustomer（Customero）;
publicvoidnotifyCustomer（）;
}
b）具体主题（使用了单例模式，只能创建一个蛋糕商店的对象）CakeShop.java：
packagenet.xsl.ordercake.order;
importjava.util.ArrayList;
publicclassCakeShopimplementsShop{
Stringname;
booleanchanged;
ArrayListpersonList;
privateinti=0;
privatestaticCakeShopuniqueCakeShop;
privateCakeShop（）{
uniqueCakeShop=this;
personList=newArrayList（）;
name="";
changed=false;
}
publicstaticsynchronizedCakeShopgetCakeShop（）{
if（uniqueCakeShop==null）{
uniqueCakeShop=newCakeShop（）;
}
returnuniqueCakeShop;
}
publicvoidaddCustomer（Customero）{
if（!
（personList.contains（o）））
personList.add（o）;
}
publicvoiddeleteCustomer（Customero）{
if（（personList.contains（o）））
personList.remove（o）;
}
publicvoidnotifyCustomer（）{
if（changed）{
try{
Customercustomer=personList.get（i）;
customer.orderCake（name）;
i++;
changed=false;
}
catch（Exceptione）{
System.out.println（"没有新的订购信息"）;
}
}
}
publicvoidgetNewName（Stringstr）{
if（str.equals（name））
changed=false;
else{
name=str;
changed=true;
}
}
}
c）观察者Customer.java：
packagenet.xsl.ordercake.order;
publicinterfaceCustomer{
publicvoidorderCake（Stringname）;
}
d）体观察者一EastVilla.java：
packagenet.xsl.ordercake.order;
importnet.xsl.ordercake.creator.MakeChocolateCake;
importnet.xsl.ordercake.creator.MakeFruityCake;
importnet.xsl.ordercake.creator.MakeMilkCake;
importnet.xsl.ordercake.jdbc.JDBCFacade;
importnet.xsl.ordercake.product.ChocolateFactory;
importnet.xsl.ordercake.product.FruitFactory;
importnet.xsl.ordercake.product.MilkFactory;
publicclassEastVillaimplementsCustomer{
Shopshop;
privateStringcakeType;
publicEastVilla（Shopshop,StringcakeType）{
this.shop=shop;
this.cakeType=cakeType;
shop.addCustomer（this）;
}
publicvoidorderCake（Stringname）{
System.out.println（name+"订了一个"+cakeType+"蛋糕"）;
JDBCFacadedbFacade=newJDBCFacade（）;
StringsqlStr="select*fromordercake";
StringsqlStr1="insertintoordercake（cakeType,name,quantity）"+"VALUES（'"+cakeType+"','"+name+"','1'）";
dbFacade.jdbcInsert（sqlStr1）;
System.out.println（"查询插入之后新的数据库"）;
dbFacade.jdbcSelect（sqlStr）;
if（cakeType.equals（"草莓水果"）||cakeType.equals（"葡萄水果"））{
MakeFruityCakeeastVilla=newMakeFruityCake（cakeType）;
FruitFactoryfruitCake=eastVilla.makeFruityCake（）;
fruitCake.createCake（）;
}
elseif（cakeType.equals（"牛奶巧克力"）||cakeType.equals（"黑巧克力"））{
MakeChocolateCakeeastVilla1=newMakeChocolateCake（cakeType）;
ChocolateFactorychocolateCake=eastVilla1.makeChocolateCake（）;
chocolateCake.createCake（）;
}
elseif（cakeType.equals（"双层鲜奶"）||cakeType.equals（"甜奶"））{
MakeMilkCakeeastVilla1=newMakeMilkCake（cakeType）;
MilkFactorymilkCake=eastVilla1.makeMilkCake（）;
milkCake.createCake（）;
}
}
}
e）具体观察者二WestVilla.java：
packagenet.xsl.ordercake.order;
importnet.xsl.ordercake.creator.MakeChocolateCake;
importnet.xsl.ordercake.creator.MakeFruityCake;
importnet.xsl.ordercake.creator.MakeMilkCake;
importnet.xsl.ordercake.jdbc.JDBCFacade;
importnet.xsl.ordercake.product.ChocolateFactory;
importnet.xsl.ordercake.product.FruitFactory;
importnet.xsl.ordercake.product.MilkFactory;
publicclassWestVillaimplementsCustomer{
Shopshop;
privateStringcakeType;
publicWestVilla（Shopshop,StringcakeType）{
this.shop=shop;
this.cakeType=cakeType;
shop.addCustomer（this）;
}
publicvoidorderCake（Stringname）{
System.out.println（name+"订了一个"+cakeType+"蛋糕"）;
JDBCFacadedbFacade=newJDBCFacade（）;
StringsqlStr="select*fromordercake";
StringsqlStr1="insertintoordercake（cakeType,name,quantity）"+"VALUES（'"+cakeType+"','"+name+"','1'）";
dbFacade.jdbcInsert（sqlStr1）;
System.out.println（"查询插入之后新的数据库"）;
dbFacade.jdbcSelect（sqlStr）;
if（cakeType.equals（"草莓水果"）||cakeType.equals（"葡萄水果"））{
MakeFruityCakewestVilla=newMakeFruityCake（cakeType）;
FruitFactoryfruitCake=westVilla.makeFruityCake（）;
fruitCake.createCake（）;
}
elseif（cakeType.equals（"牛奶巧克力"）||cakeType.equals（"黑巧克力"））{
MakeChocolateCakewestVilla1=newMakeChocolateCake（cakeType）;
ChocolateFactorychocolateCake=westVilla1.makeChocolateCake（）;
chocolateCake.createCake（）;
}
elseif（cakeType.equals（"双层鲜奶"）||cakeType.equals（"甜奶"））{
MakeMilkCakewestVilla1=newMakeMilkCake（cakeType）;
MilkFactorymilkCake=westVilla1.makeMilkCake（）;
milkCake.createCake（）;
}
}
}
（四）JDBC（门面模式）JDBCFacade.java：
packagenet.xsl.ordercake.jdbc;
importjava.sql.Connection;
importjava.sql.DriverManager;
importjava.sql.ResultSet;
importjava.sql.ResultSetMetaData;
importjava.sql.SQLException;
importjava.sql.Statement;
publicclassJDBCFacade{
Connectionconn=null;
Statementstmt=null;
ResultSetrs=null;
StringsqlStr="";
publicvoidcreateStatement（）{
try{
stmt=conn.createStatement（）;
}catch（SQLExceptione）{
e.printStackTrace（）;
}
}
publicResultSetjdbcSelect（StringsqlStr）{
this.sqlStr=sqlStr;
getConnection（）;
createStatement（）;
try{
rs=stmt.executeQuery（sqlStr）;
ResultSetMetaDatarsmd=rs.getMetaData（）;
intj=0;
j=rsmd.getColumnCount（）;
while（rs.next（））{
for（inti=0;iSystem.out.print（rs.getString（i+1））;
System.out.print（"\t"）;
}
System.out.println（）;
}
}catch（SQLExceptione）{
e.printStackTrace（）;
}
returnrs;
}
publicvoidjdbcUpdate（StringsqlStr）{
this.sqlStr=sqlStr;
getConnection（）;
createStatement（）;
try{
intcount=stmt.executeUpdate（sqlStr）;
System.out.println（"表更新"+count+"条数据"）;
}catch（SQLExceptione）{
System.out.println（"更新数据失败"）;
}
}
publicvoidjdbcInsert（StringsqlStr）{
this.sqlStr=sqlStr;
getConnection（）;
createStatement（）;
try{
intcount=stmt.executeUpdate（sqlStr）;
System.out.println（"向表插入"+count+"条数据"）;
}catch（SQLExceptione）{
System.out.println（"插入数据失败"+e.getMessage（））;
}
}
publicvoidjdbcDelete（StringsqlStr）{
this.sqlStr=sqlStr;
getConnection（）;
createStatement（）;
try{
intcount=stmt.executeUpdate（sqlStr）;
System.out.println（"向表删除"+count+"条数据"）;
}catch（SQLExceptione）{
System.out.println（"删除数据失败"）;
}
}
publicvoidjdbcClose（）{
try{
rs.close（）;
stmt.close（）;
conn.close（）;
}catch（SQLExceptione）{
e.printStackTrace（）;
}
}
publicConnectiongetConnection（）{
try{
Class.forName（"com.mysql.jdbc.Driver"）;
conn=DriverManager.getConnectio
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