黑马程序员——银行业务调度系统
android培训、
java培训、期待与您交流！
上一个交通灯管理系统没有敲代码主要学习的是思想，这次的问题就跟着老师的思路敲代码了，自己敲完之后，看看和老师的有哪些不一样，然后再改正，还是那句话，单独把这些代码拿出来都明白什么意思，但是怎么来的就不一定明白的很彻底，面向对象的设计思想真的很重要，可能对于我这样的初学者来说听困难的，不知道如何开始，之间的逻辑不知道该怎么实现，在老师的眼中一切都是那么简单。这真的就得靠自己的努力了。需求就去网上找张孝祥老师的视频看吧，我在这就不粘贴了，实现代码如下：
public class NumberManager {
private int lastNumber = 0;
private List queueNumbers = new ArrayList();
public synchronized Integer generateNewNumber(){
queueNumbers.add(++lastNumber);
return lastNumber;
}
public synchronized Integer fetchNumber(){
if(queueNumbers.size()>0){
return (Integer)queueNumbers.remove(0);
}else{
return null;
}
}
}
public class NumberMachine {
private NumberMachine(){}
private static NumberMachine instance = new NumberMachine();
public static NumberMachine getInstance(){
return instance;
}
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;
}
}
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();
}
}
}
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;
}
}
public class Constants {
public static int MAX_SERVICE_TIME = 10000; //10秒！
public static int MIN_SERVICE_TIME = 1000; //1秒！
public static int COMMON_CUSTOMER_INTERVAL_TIME = 1;
}
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();
//logger.info("第" + serviceNumber + "号普通客户正在等待服务！");
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);
}
}
---------------------- android培训、 java培训、期待与您交流！ ----------------------
详细请查看： http://edu.csdn.net/heima
上一个交通灯管理系统没有敲代码主要学习的是思想，这次的问题就跟着老师的思路敲代码了，自己敲完之后，看看和老师的有哪些不一样，然后再改正，还是那句话，单独把这些代码拿出来都明白什么意思，但是怎么来的就不一定明白的很彻底，面向对象的设计思想真的很重要，可能对于我这样的初学者来说听困难的，不知道如何开始，之间的逻辑不知道该怎么实现，在老师的眼中一切都是那么简单。这真的就得靠自己的努力了。需求就去网上找张孝祥老师的视频看吧，我在这就不粘贴了，实现代码如下：
public class NumberManager {
private int lastNumber = 0;
private List queueNumbers = new ArrayList();
public synchronized Integer generateNewNumber(){
queueNumbers.add(++lastNumber);
return lastNumber;
}
public synchronized Integer fetchNumber(){
if(queueNumbers.size()>0){
return (Integer)queueNumbers.remove(0);
}else{
return null;
}
}
}
public class NumberMachine {
private NumberMachine(){}
private static NumberMachine instance = new NumberMachine();
public static NumberMachine getInstance(){
return instance;
}
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;
}
}
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();
}
}
}
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;
}
}
public class Constants {
public static int MAX_SERVICE_TIME = 10000; //10秒！
public static int MIN_SERVICE_TIME = 1000; //1秒！
public static int COMMON_CUSTOMER_INTERVAL_TIME = 1;
}
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();
//logger.info("第" + serviceNumber + "号普通客户正在等待服务！");
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);
}
}
---------------------- android培训、 java培训、期待与您交流！ ----------------------
详细请查看： http://edu.csdn.net/heima