设计模式大作业实验报告.docx

1、设计模式大作业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、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.orde

2、rcake.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.getCakeSho

3、p(); 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.get

4、Price(),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.disc

5、ount;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.x

6、sl.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(d

7、ouble 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,

8、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

9、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 clas

10、s CakeShop implements Shop String 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

11、= 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) try Customer customer = p

12、ersonList.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; else name = str; changed = true; c)观察者Customer.java：package net.xsl.ordercake.order;public interface Customer publ

13、ic 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 net.xsl.ordercake.prod

14、uct.ChocolateFactory;import net.xsl.ordercake.product.FruitFactory;import net.xsl.ordercake.product.MilkFactory;public class EastVilla implements Customer Shop shop; private String cakeType; public EastVilla(Shop shop,String cakeType) this.shop = shop; this.cakeType = cakeType; shop.addCustomer(this

15、); 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.pri

16、ntln(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) MakeChocolateC

17、ake 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(); m

18、ilkCake.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 net.xsl.ordercake.product.Choc

19、olateFactory;import net.xsl.ordercake.product.FruitFactory;import net.xsl.ordercake.product.MilkFactory;public class WestVilla implements Customer Shop shop; private String cakeType; public WestVilla(Shop shop,String cakeType) this.shop = shop; this.cakeType = cakeType; shop.addCustomer(this); publi

20、c 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

21、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 west

22、Villa1 = 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.

23、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; St

24、atement 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(sql

25、Str); 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.s

26、qlStr = 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 = st

27、mt.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(jdb