设计模式大作业-蛋糕预定系统实验报告.docx

蛋糕订购系统蛋糕订购系统一、 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、MySQL 5.5、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：package net.xsl.ordercake.test;import net.xsl.ordercake.discount.DiscountStyleThree;import net.xsl.ordercake.discount.OrderCake;import net.xsl.ordercake.order.CakeShop;import net.xsl.ordercake.order.EastVilla;import net.xsl.ordercake.order.WestVilla;public class Client public static void main (String arg)CakeShop starCakeShop = CakeShop.getCakeShop();new WestVilla(starCakeShop, 草莓水果);starCakeShop.getNewName(西13);starCakeShop.notifyCustomer();OrderCake cake = new OrderCake();System.out.println(今日促销一律8折优惠);cake.setM(8);cake.setStyle(new DiscountStyleThree();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(=);new EastVilla(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：package net.xsl.ordercake.discount;public interface DiscountStyle public double disCount(double price,double m);b) 折方式一DiscountStyleOne.java：package net.xsl.ordercake.discount;public class DiscountStyleOne implements DiscountStylepublic double disCount(double price,double m) return price;c) 打折方式二DiscountStyleTwo.java：package net.xsl.ordercake.discount;public class DiscountStyleTwo implements DiscountStylepublic double disCount(double price,double m) price = price - m;return price;d) 打着方式三DiscountStyleThree.java：package net.xsl.ordercake.discount;public class DiscountStyleThree implements DiscountStylepublic double disCount(double price,double m) price = price * m/10;return price;e) 订蛋糕对象类，使用了get/set方法OrderCake.java：package net.xsl.ordercake.discount;public class OrderCake double money,price;/money是打折后的最终价格，price是原价DiscountStyle style;double m;public double getMoney(double price,double m)return style.disCount(price,m); public void setPrice(double price)this.price = price ;public double getPrice()return price;public void setStyle(DiscountStyle style)this.style = style ;public DiscountStyle getStyle()return style;public void setM(double m)this.m = m ;public double getM()return m;(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：package net.xsl.ordercake.order;public interface Shop public void addCustomer(Customer o);public void deleteCustomer(Customer o);public void notifyCustomer();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：package net.xsl.ordercake.order;import java.util.ArrayList;public class CakeShop implements ShopString name;boolean changed;ArrayListpersonList;private int i = 0;private static CakeShop uniqueCakeShop;private CakeShop() uniqueCakeShop = this;personList = new ArrayList();name = ;changed = false;public static synchronized CakeShop getCakeShop()if(uniqueCakeShop = null)uniqueCakeShop = new CakeShop();return uniqueCakeShop;public void addCustomer(Customer o) if(!(personList.contains(o)personList.add(o);public void deleteCustomer(Customer o) if(personList.contains(o)personList.remove(o);public void notifyCustomer() if(changed)tryCustomer customer = personList.get(i);customer.orderCake(name);i+;changed = false;catch(Exception e)System.out.println(没有新的订购信息);public void getNewName(String str)if(str.equals(name)changed = false;elsename = str;changed = true;c) 观察者Customer.java：package net.xsl.ordercake.order;public interface Customer public void orderCake(String name);d) 体观察者一EastVilla.java：package net.xsl.ordercake.order;import net.xsl.ordercake.creator.MakeChocolateCake;import net.xsl.ordercake.creator.MakeFruityCake;import net.xsl.ordercake.creator.MakeMilkCake;import net.xsl.ordercake.jdbc.JDBCFacade;import duct.ChocolateFactory;import duct.FruitFactory;import duct.MilkFactory;public class EastVilla implements CustomerShop shop;private String cakeType;public EastVilla(Shop shop,String cakeType)this.shop = shop;this.cakeType = cakeType;shop.addCustomer(this);public void orderCake(String name)System.out.println(name+订了一个+cakeType+蛋糕);JDBCFacade dbFacade=new JDBCFacade(); String sqlStr = select * from ordercake; String sqlStr1 = insert into ordercake(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)MakeFruityCake eastVilla = new MakeFruityCake(cakeType);FruitFactory fruitCake = eastVilla.makeFruityCake();fruitCake.createCake();else if(cakeType.equals(牛奶巧克力) | cakeType.equals(黑巧克力)MakeChocolateCake eastVilla1 = new MakeChocolateCake(cakeType);ChocolateFactory chocolateCake = eastVilla1.makeChocolateCake();chocolateCake.createCake();else if(cakeType.equals(双层鲜奶) | cakeType.equals(甜奶)MakeMilkCake eastVilla1 = new MakeMilkCake(cakeType);MilkFactory milkCake = eastVilla1.makeMilkCake();milkCake.createCake(); e) 具体观察者二WestVilla.java：package net.xsl.ordercake.order;import net.xsl.ordercake.creator.MakeChocolateCake;import net.xsl.ordercake.creator.MakeFruityCake;import net.xsl.ordercake.creator.MakeMilkCake;import net.xsl.ordercake.jdbc.JDBCFacade;import duct.ChocolateFactory;import duct.FruitFactory;import duct.MilkFactory;public class WestVilla implements CustomerShop shop;private String cakeType;public WestVilla(Shop shop,String cakeType)this.shop = shop;this.cakeType = cakeType;shop.addCustomer(this);public void orderCake(String name)System.out.println(name+订了一个+cakeType+蛋糕);JDBCFacade dbFacade=new JDBCFacade(); String sqlStr = select * from ordercake; String sqlStr1 = insert into ordercake(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)MakeFruityCake westVilla = new MakeFruityCake(cakeType);FruitFactory fruitCake = westVilla.makeFruityCake();fruitCake.createCake();else if(cakeType.equals(牛奶巧克力) | cakeType.equals(黑巧克力)MakeChocolateCake westVilla1 = new MakeChocolateCake(cakeType);ChocolateFactory chocolateCake = westVilla1.makeChocolateCake();chocolateCake.createCake();else if(cakeType.equals(双层鲜奶) | cakeType.equals(甜奶)MakeMilkCake westVilla1 = new MakeMilkCake(cakeType);MilkFactory milkCake = westVilla1.makeMilkCake();milkCake.createCake(); (四) JDBC（门面模式）JDBCFacade.java：package net.xsl.ordercake.jdbc;import java.sql.Connection; import java.sql.DriverManager;import java.sql.ResultSet; import java.sql.ResultSetMetaData;import java.sql.SQLException; import java.sql.Statement; public class JDBCFacade Connection conn = null; Statement stmt = null; ResultSet rs = null; String sqlStr = ; public void createStatement() try stmt = conn.createStatement(); catch (SQLException e) e.printStackTrace(); public ResultSet jdbcSelect(String sqlStr) this.sqlStr = sqlStr; getConnection(); createStatement(); try rs = stmt.executeQuery(sqlStr); ResultSetMetaData rsmd = rs.getMetaData(); int j = 0; j = rsmd.getColumnCount(); while(rs.next() for(int i=0;ij;i+) System.out.print(rs.getString(i+1); System.out.print(t); System.out.println(); catch (SQLException e) e.printStackTrace(); return rs; public void jdbcUpdate(String sqlStr) this.sqlStr = sqlStr; getConnection(); createStatement(); try int count = stmt.executeUpdate(sqlStr); System.out.println(表更新 + count + 条数据); catch (SQLException e) System.out.println(更新数据失败); public void jdbcInsert(String sqlStr) this.sqlStr = sqlStr; getConnection(); createStatement(); try int count = stmt.executeUpdate(sqlStr); System.out.println(向表插入 + count + 条数据); catch (SQLException e) System.out.println(插入数据失败 + e.getMessage(); public void jdbcDelete(String sqlStr) this.sqlStr = sqlStr; getConnection(); createStatement(); try int count = stmt.executeUpdate(sqlStr); System.out.println(向表删除 + count + 条数据); catch (SQLException e) System.out.println(删除数据失败); public void jdbcClose() try rs.close(); stmt.close(); conn.close(); catch (SQLException e) e.printStackTrace(); public Connection getConnection() try Class.forName(com.mysql.jdbc.Driver); conn=DriverManager.getConnection(jdbc:mysql:/localhost:3306/cakeshop,root,admin); catch (Exception e) System.out.println(数据库连接失败 + e.getMessage(); return conn; (五) 构造蛋糕（工厂方法模式）：a) 构造者MakeCake.java：package net.xsl.ordercake.creator;public interface MakeCake b) 具体构造者一MakeChocolateCake.java：package net.xsl.ordercake.creator;import duct.ChocolateFactory;public class MakeChocolateCake implements MakeCakeprivate String cakeType;public MakeChocolateCake(String cakeType)this.cakeType = cakeType;public ChocolateFactory makeChocolateCake()return new ChocolateFactory(cakeType);c) 具体构造者二MakeFruityCake.java：package net.xsl.ordercake.creator;import duct.FruitFactory;public class MakeFruityCake implements MakeCakeprivate String cakeType;public MakeFruityCake(String cakeType)this.cakeType = cakeType;public FruitFactory makeFruityCake()return new FruitFactory(cakeType);d) 具体构造者三MakeMilkCake.java：package net.xsl.ordercake.creator;import duct.MilkFactory;public class MakeMilkCake implements MakeCakeprivate String cakeType;public MakeMilkCake(String cakeType)this.cakeType = cakeType;public MilkFactory makeMilkCake()return new MilkFactory(cakeType);e) 抽象产品Factory.java：package duct;public interface Factory public void createCake();f) 具体产品一FruitFactory.java：package duct;public class FruitFactory implements Factoryprivate String cakeType;public FruitFactory(String cakeType)this.cakeType = cakeType;public void createCake()tryif (cakeType.equals(草莓水果)FruityCake strawberryCake = new StrawberryCake();strawberryCake.show();else if (cakeType.equals(葡萄水果) FruityCake grapeCake = new GrapeCake();grapeCake.show(); catch (Exception e) System.out.println(制作+cakeType+蛋糕失败); g) 具体产品二MilkFactory.java：package duct;public class MilkFactory implements Factoryprivate String cakeType;public MilkFactory(String cakeType)this.cakeType = cakeType;public void createCake()tryif (cakeType.equals(双层鲜奶)MilkCake doubleMilkCake = new DoubleMilkCake();doubleMilkCake.show();else if (cakeType.equals(甜奶) MilkCake sweetMilkCake = new SweetMilkCake();sweetMilkCake.show(); catch (Exception e) System.out.println(制作+cakeType+蛋糕失败); h) 具体产品三ChocolateFactory.java：package duct;public class ChocolateFactory private String cakeType;public ChocolateFactory(String cakeType)this.cakeType = cakeType ;public void createCake()tryif (cakeType.equals(牛奶巧克力)ChocolateCake milkChocolateCake = new MilkChocolateCake();milkChocolateCake.show();else if (cakeType.equals(黑巧克力) ChocolateCake darkChocolateCake = new DarkChocolateCake();darkChocolateCake.show(); catch (Exception e) System.out.println(制作+cakeType+蛋糕失败); (六) 蛋糕工厂（简单工厂模式）：a) 水果蛋糕：i. FruitFactory.java（第五项构造蛋糕中已贴出）：ii. 接口类FruityCake.java：package duct;public interface FruityCake public void show();iii. 实现接口：StrawberryCake.java：package duct;public class StrawberryCake im