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银行业务调度系统模拟银行调度系统逻辑。需求 1.银行内有6个业务窗口,1-4为普通窗口,5为快速窗口,6为VIP窗口。2.有三种类型客户:VIP客户,快速客户(交水电费类业务),普通客户。3.一部随机生成各种类型的客户,概率比例为:VIP客户:快速客户:普通客户 = 1:3:6.4.客户办理用时设定最少时间。5.各类型客户在其对应窗口按照顺序办理业务。6.VIP和快速窗口无办理业务时刻受理普通客户,若有应该优先处理对应客户。 面向对象分析与设计1.有三种类型的客户:VIP,快速,普通,异步随机生成个类型客户。a.有一个取号机对象产生号码,好比产生客户。b.三类客户号码编排独立,系统产生一个管理三个号码管理器的对象,号码管理器在系统中只有一个,设计成单例。2。个类型客户在对应窗口按顺序依次办理业务,即依次叫号。a.各个窗口如何获得叫号信息,他一定试问相应的号码管理器。
编程代码实现:
package com.isoftstone.interview.bank; public class Constants { public static int MAX_SERVICE_TIME = 10000; public static int MIN_SERVICE_TIME = 1000; public static int COMMON_CUSTOMER_INTERVAL_TIME = 1; } package com.isoftstone.interview.bank; public enum CustomerType { COMMON,EXPRESS,VIP; public String toString(){ String name = null; switch(this){ case COMMON: name = "普通"; break; case EXPRESS: name = "快速"; break; case VIP: name = name(); break; } return name; } } package com.isoftstone.interview.bank; import java.util.concurrent.Executors; import java.util.concurrent.TimeUnit; import java.util.logging.Logger; public class MainClass { private static Logger logger = Logger.getLogger("cn.itcast.bankqueue"); public static void main(String[] args) { //产生4个普通窗口 for(int i=1;i<5;i++){ ServiceWindow window = new ServiceWindow(); window.setNumber(i); window.start(); } //产生1个快速窗口 ServiceWindow expressWindow = new ServiceWindow(); expressWindow.setType(CustomerType.EXPRESS); expressWindow.start(); //产生1个VIP窗口 ServiceWindow vipWindow = new ServiceWindow(); vipWindow.setType(CustomerType.VIP); vipWindow.start(); //普通客户拿号 Executors.newScheduledThreadPool(1).scheduleAtFixedRate( new Runnable(){ public void run(){ Integer serviceNumber = NumberMachine.getInstance().getCommonManager().generateNewNumber(); System.out.println("第" + serviceNumber + "号普通客户正在等待服务!"); } }, 0, Constants.COMMON_CUSTOMER_INTERVAL_TIME, TimeUnit.SECONDS); //快速客户拿号 Executors.newScheduledThreadPool(1).scheduleAtFixedRate( new Runnable(){ public void run(){ Integer serviceNumber = NumberMachine.getInstance().getExpressManager().generateNewNumber(); System.out.println("第" + serviceNumber + "号快速客户正在等待服务!"); } }, 0, Constants.COMMON_CUSTOMER_INTERVAL_TIME * 2, TimeUnit.SECONDS); //VIP客户拿号 Executors.newScheduledThreadPool(1).scheduleAtFixedRate( new Runnable(){ public void run(){ Integer serviceNumber = NumberMachine.getInstance().getVipManager().generateNewNumber(); System.out.println("第" + serviceNumber + "号VIP客户正在等待服务!"); } }, 0, Constants.COMMON_CUSTOMER_INTERVAL_TIME * 6, TimeUnit.SECONDS); } } package com.isoftstone.interview.bank; public class NumberMachine { private NumberManager commonManager = new NumberManager(); private NumberManager expressManager = new NumberManager(); private NumberManager VIPManager = new NumberManager(); public NumberManager getCommonManager() { return commonManager; } public NumberManager getExpressManager() { return expressManager; } public NumberManager getVIPManager() { return VIPManager; } private NumberMachine(){} public static NumberMachine getInstance(){ return instance; } private static NumberMachine instance = new NumberMachine(); } package com.isoftstone.interview.bank; import java.util.ArrayList; import java.util.List; public class NumberManager { private int lastNumber = 1; private List<Integer> queueNumber = new ArrayList<Integer>(); public synchronized int generateNewManager(){ queueNumber.add(lastNumber); return lastNumber++; } public synchronized int fetchServiceNumber(){ return queueNumber.remove(0); } } package com.isoftstone.interview.bank; import java.util.Random; import java.util.concurrent.Executors; import java.util.logging.Logger; public class ServiceWindow { private static Logger logger = Logger.getLogger("cn.itcast.bankqueue"); private CustomerType type = CustomerType.COMMON; private int number = 1; public CustomerType getType() { return type; } public void setType(CustomerType type) { this.type = type; } public void setNumber(int number){ this.number = number; } public void start(){ Executors.newSingleThreadExecutor().execute( new Runnable(){ public void run(){ while(true){ switch(type){ case COMMON: commonService(); break; case EXPRESS: expressService(); break; case VIP: vipService(); break; } } } } ); } private void commonService(){ String windowName = "第" + number + "号" + type + "窗口"; System.out.println(windowName + "开始获取普通任务!"); Integer serviceNumber = NumberMachine.getInstance().getCommonManager().fetchNumber(); if(serviceNumber != null ){ System.out.println(windowName + "开始为第" + serviceNumber + "号普通客户服务"); int maxRandom = Constants.MAX_SERVICE_TIME - Constants.MIN_SERVICE_TIME; int serviceTime = new Random().nextInt(maxRandom)+1 + Constants.MIN_SERVICE_TIME; try { Thread.sleep(serviceTime); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println(windowName + "完成为第" + serviceNumber + "号普通客户服务,总共耗时" + serviceTime/1000 + "秒"); }else{ System.out.println(windowName + "没有取到普通任务,正在空闲一秒"); try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } } } private void expressService(){ Integer serviceNumber = NumberMachine.getInstance().getExpressManager().fetchNumber(); String windowName = "第" + number + "号" + type + "窗口"; System.out.println(windowName + "开始获取快速任务!"); if(serviceNumber !=null){ System.out.println(windowName + "开始为第" + serviceNumber + "号快速客户服务"); int serviceTime = Constants.MIN_SERVICE_TIME; try { Thread.sleep(serviceTime); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println(windowName + "完成为第" + serviceNumber + "号快速客户服务,总共耗时" + serviceTime/1000 + "秒"); }else{ System.out.println(windowName + "没有取到快速任务!"); commonService(); } } private void vipService(){ Integer serviceNumber = NumberMachine.getInstance().getVipManager().fetchNumber(); String windowName = "第" + number + "号" + type + "窗口"; System.out.println(windowName + "开始获取VIP任务!"); if(serviceNumber !=null){ System.out.println(windowName + "开始为第" + serviceNumber + "号VIP客户服务"); int maxRandom = Constants.MAX_SERVICE_TIME - Constants.MIN_SERVICE_TIME; int serviceTime = new Random().nextInt(maxRandom)+1 + Constants.MIN_SERVICE_TIME; try { Thread.sleep(serviceTime); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println(windowName + "完成为第" + serviceNumber + "号VIP客户服务,总共耗时" + serviceTime/1000 + "秒"); }else{ System.out.println(windowName + "没有取到VIP任务!"); commonService(); } } }
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