diff --git a/.idea/vcs.xml b/.idea/vcs.xml index d217914..c8e70dd 100644 --- a/.idea/vcs.xml +++ b/.idea/vcs.xml @@ -1,6 +1,7 @@ + \ No newline at end of file diff --git a/.idea/workspace.xml b/.idea/workspace.xml index ab9e0f0..00cc6c2 100644 --- a/.idea/workspace.xml +++ b/.idea/workspace.xml @@ -1,7 +1,108 @@ - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - + + + + + + + - + - - + + + + + - - + + + + - + + + + - + + + + @@ -45,25 +169,13 @@ - - - - - - - - - - + - - - - - - + + + @@ -72,6 +184,7 @@ @@ -79,23 +192,72 @@ List<WeChatUser> userList + TOMCAT + case1 WeChatUser weChatUser + Linux + logicTest + + @@ -117,6 +279,22 @@ + + + + + + + + + + + + + + - + - - + + + + - + + + + + + + + + + + + + + + + + + + + - + - - @@ -270,17 +539,206 @@ 1550332102563 + + + + + + + + + + + + + 1550497556468 + + + 1550497864256 + + + 1550498046807 + + + 1550498615539 + + + 1550498663917 + + + 1550498705101 + + + 1550675876004 + + + 1550762815911 + + + 1550762880374 + + + 1550762907662 + + + 1550763092270 + + + 1550763298187 + + + 1550929327841 + + + 1550929360294 + + + 1550929565432 + + + 1550931738216 + + + 1550975271892 + + + 1551017118404 + + + 1551017164486 + + + 1551107239988 + + + 1551107455450 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - - + @@ -290,27 +748,28 @@ - - + + - + - + - + + - + @@ -318,7 +777,7 @@ - + @@ -328,27 +787,28 @@ - - + + - + - + - + + - + @@ -362,147 +822,431 @@ + + + + + + + + + + + + + + + + - file://$PROJECT_DIR$/src/main/com/mxy/design/observer/WeChatSubjectImpl.java + file://$PROJECT_DIR$/src/main/com/mxy/design/observer/WeChatOfficialAccountImpl.java 30 - file://$PROJECT_DIR$/src/main/com/mxy/design/observer/MAIN.java - 9 + file://$PROJECT_DIR$/src/test/com/mxy/design/decorator/DecoratorTest.java + 27 + + + + file://$PROJECT_DIR$/src/test/com/mxy/design/proxy/DynamicProxyTest.java + 42 + + + + file://$PROJECT_DIR$/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/StudentJdkProxy.java + 18 + + + + jar://E:/Java/Java1.8/src.zip!/java/lang/reflect/Proxy.java + 709 - - - jar://E:/Java/Java1.8/src.zip!/java/io/PrintStream.java - 804 + + file://$PROJECT_DIR$/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/StudentJdkProxy.java + 23 + + + + jar://E:/Java/Java1.8/src.zip!/java/lang/reflect/Method.java + 487 - + + + + h + JAVA + EXPRESSION + + + interfaces.length + JAVA + EXPRESSION + + + - + - - + + - + - - + + - + - - + + - - + + + + + + + + + + + + + + + - - + + - + - - + + - + - - + + - + - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - - - - - - - - - - + + - + - - + + - + - - + + - + - - + + - + - - + + - + - - + + - + - - + + + + + + + + + + + + + + + + - - + + - + - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/README.md b/README.md new file mode 100644 index 0000000..dc889d5 --- /dev/null +++ b/README.md @@ -0,0 +1,29 @@ +# DesignPatterns + +1.观察者模式 - 已上传 + +2.装饰模式- 已上传 + +3.策略模式-已上传 + +4.适配器模式- 已上传 + +5.代理模式- 已上传 + +6.模板模式- 已上传 + +7.工厂模式（抽象）- 整理中 + +8.桥接模式- 整理中 + +9.门面模式- 整理中 + +10.组合模式- 整理中 + +11.状态模式- 整理中 + +12.命令模式- 整理中 + +13.解释器模式- 整理中 + + diff --git a/pom.xml b/pom.xml index 31f7351..db8e35c 100644 --- a/pom.xml +++ b/pom.xml @@ -84,6 +84,14 @@ 1.1.0.Final + + + cglib + cglib + 3.2.10 + + + diff --git a/src/main/com/mxy/design/adapter/classes/adapter/Ps2Connector.java b/src/main/com/mxy/design/adapter/classes/adapter/Ps2Connector.java new file mode 100644 index 0000000..cce86b6 --- /dev/null +++ b/src/main/com/mxy/design/adapter/classes/adapter/Ps2Connector.java @@ -0,0 +1,11 @@ +package com.mxy.design.adapter.classes.adapter; + +/** + * ps2插口 + */ +public interface Ps2Connector { + + + void ps2Description(); + +} diff --git a/src/main/com/mxy/design/adapter/classes/adapter/Ps2UsbAdapter.java b/src/main/com/mxy/design/adapter/classes/adapter/Ps2UsbAdapter.java new file mode 100644 index 0000000..a4d766c --- /dev/null +++ b/src/main/com/mxy/design/adapter/classes/adapter/Ps2UsbAdapter.java @@ -0,0 +1,17 @@ +package com.mxy.design.adapter.classes.adapter; + +/** + * 1.类适配器 + * PS2 to Usb 转换口 + */ +public class Ps2UsbAdapter extends UsbConnectorImpl implements Ps2Connector { + + /** + * 重点：继承你需要适配的类 + */ + @Override + public void ps2Description() { + System.out.println("正在进行 PS/2适配USB中...."); + usbDescription(); + } +} diff --git a/src/main/com/mxy/design/adapter/classes/adapter/PsConnectorImpl.java b/src/main/com/mxy/design/adapter/classes/adapter/PsConnectorImpl.java new file mode 100644 index 0000000..9512200 --- /dev/null +++ b/src/main/com/mxy/design/adapter/classes/adapter/PsConnectorImpl.java @@ -0,0 +1,11 @@ +package com.mxy.design.adapter.classes.adapter; + + +public class PsConnectorImpl implements Ps2Connector { + + @Override + public void ps2Description() { + + System.out.println("使用PS/2插口"); + } +} diff --git a/src/main/com/mxy/design/adapter/classes/adapter/UsbConnector.java b/src/main/com/mxy/design/adapter/classes/adapter/UsbConnector.java new file mode 100644 index 0000000..e016fc9 --- /dev/null +++ b/src/main/com/mxy/design/adapter/classes/adapter/UsbConnector.java @@ -0,0 +1,11 @@ +package com.mxy.design.adapter.classes.adapter; + +/** + * USB插口 + */ +public interface UsbConnector { + + + void usbDescription(); + +} diff --git a/src/main/com/mxy/design/adapter/classes/adapter/UsbConnectorImpl.java b/src/main/com/mxy/design/adapter/classes/adapter/UsbConnectorImpl.java new file mode 100644 index 0000000..fd983ee --- /dev/null +++ b/src/main/com/mxy/design/adapter/classes/adapter/UsbConnectorImpl.java @@ -0,0 +1,12 @@ +package com.mxy.design.adapter.classes.adapter; + +/** + * 使用USB插槽 + */ +public class UsbConnectorImpl implements UsbConnector { + + @Override + public void usbDescription() { + System.out.println("使用USB插口"); + } +} diff --git a/src/main/com/mxy/design/adapter/interfaces/adapter/Adapter.java b/src/main/com/mxy/design/adapter/interfaces/adapter/Adapter.java new file mode 100644 index 0000000..a297f59 --- /dev/null +++ b/src/main/com/mxy/design/adapter/interfaces/adapter/Adapter.java @@ -0,0 +1,23 @@ +package com.mxy.design.adapter.interfaces.adapter; + +/** + * 接口适配器：重在共享接口功能,并为继承该适配器的类提供各自所需方法 + */ +public abstract class Adapter implements Port { + + @Override + public void SSH() { + + } + + @Override + public void NET() { + + } + + @Override + public void FTP() { + + } + +} diff --git a/src/main/com/mxy/design/adapter/interfaces/adapter/Chat.java b/src/main/com/mxy/design/adapter/interfaces/adapter/Chat.java new file mode 100644 index 0000000..312a900 --- /dev/null +++ b/src/main/com/mxy/design/adapter/interfaces/adapter/Chat.java @@ -0,0 +1,17 @@ +package com.mxy.design.adapter.interfaces.adapter; +/** + * 该类只需要 NET FTP 就够了 所以继承父类并重写 + */ +public class Chat extends Adapter { + + + @Override + public void NET() { + System.out.println("Chat 开启80端口"); + } + + @Override + public void FTP() { + System.out.println("Chat 开启21端口"); + } +} diff --git a/src/main/com/mxy/design/adapter/interfaces/adapter/Linux.java b/src/main/com/mxy/design/adapter/interfaces/adapter/Linux.java new file mode 100644 index 0000000..b89d6fb --- /dev/null +++ b/src/main/com/mxy/design/adapter/interfaces/adapter/Linux.java @@ -0,0 +1,22 @@ +package com.mxy.design.adapter.interfaces.adapter; + +/** + * 该系统需要全部方法 + */ +public class Linux implements Port { + + @Override + public void SSH() { + System.out.println("Linux 开启22端口"); + } + + @Override + public void NET() { + System.out.println("Linux 开启80端口"); + } + + @Override + public void FTP() { + System.out.println("Linux 开启21端口"); + } +} diff --git a/src/main/com/mxy/design/adapter/interfaces/adapter/Port.java b/src/main/com/mxy/design/adapter/interfaces/adapter/Port.java new file mode 100644 index 0000000..1203d25 --- /dev/null +++ b/src/main/com/mxy/design/adapter/interfaces/adapter/Port.java @@ -0,0 +1,17 @@ +package com.mxy.design.adapter.interfaces.adapter; + +/** + * 各种协议端口 + */ +public interface Port { + + // 远程SSH端口22 + public void SSH(); + + // 网络端口80 + public void NET(); + + // 文件传输FTP端口21 + public void FTP(); +} + diff --git a/src/main/com/mxy/design/adapter/interfaces/adapter/Tomcat.java b/src/main/com/mxy/design/adapter/interfaces/adapter/Tomcat.java new file mode 100644 index 0000000..e9878cb --- /dev/null +++ b/src/main/com/mxy/design/adapter/interfaces/adapter/Tomcat.java @@ -0,0 +1,13 @@ +package com.mxy.design.adapter.interfaces.adapter; + +/** + * 该类只需要 NET 就够了 所以继承父类并重写 + */ +public class Tomcat extends Adapter { + + + @Override + public void NET() { + System.out.println("Tomcat 开启80端口"); + } +} diff --git a/src/main/com/mxy/design/adapter/object/adapater/Ps2Connector.java b/src/main/com/mxy/design/adapter/object/adapater/Ps2Connector.java new file mode 100644 index 0000000..e044504 --- /dev/null +++ b/src/main/com/mxy/design/adapter/object/adapater/Ps2Connector.java @@ -0,0 +1,11 @@ +package com.mxy.design.adapter.object.adapater; + +/** + * ps2插口 + */ +public interface Ps2Connector { + + + void ps2Description(); + +} diff --git a/src/main/com/mxy/design/adapter/object/adapater/Ps2UsbAdapter.java b/src/main/com/mxy/design/adapter/object/adapater/Ps2UsbAdapter.java new file mode 100644 index 0000000..de06190 --- /dev/null +++ b/src/main/com/mxy/design/adapter/object/adapater/Ps2UsbAdapter.java @@ -0,0 +1,25 @@ +package com.mxy.design.adapter.object.adapater; + +/** + * 1.对象适配器 + * PS2 to Usb 转换口 + */ +public class Ps2UsbAdapter implements Ps2Connector { + + + /** + * 重点：在适配器里面持有需要适配的对象 + */ + private UsbConnector usbConnector; + + + public Ps2UsbAdapter(UsbConnector usbConnector) { + this.usbConnector = usbConnector; + } + + @Override + public void ps2Description() { + System.out.println("正在进行 PS/2适配USB中...."); + usbConnector.usbDescription(); + } +} diff --git a/src/main/com/mxy/design/adapter/object/adapater/PsConnectorImpl.java b/src/main/com/mxy/design/adapter/object/adapater/PsConnectorImpl.java new file mode 100644 index 0000000..5464ded --- /dev/null +++ b/src/main/com/mxy/design/adapter/object/adapater/PsConnectorImpl.java @@ -0,0 +1,11 @@ +package com.mxy.design.adapter.object.adapater; + + +public class PsConnectorImpl implements Ps2Connector { + + @Override + public void ps2Description() { + + System.out.println("使用PS/2插口"); + } +} diff --git a/src/main/com/mxy/design/adapter/object/adapater/UsbConnector.java b/src/main/com/mxy/design/adapter/object/adapater/UsbConnector.java new file mode 100644 index 0000000..1307c7f --- /dev/null +++ b/src/main/com/mxy/design/adapter/object/adapater/UsbConnector.java @@ -0,0 +1,11 @@ +package com.mxy.design.adapter.object.adapater; + +/** + * USB插口 + */ +public interface UsbConnector { + + + void usbDescription(); + +} diff --git a/src/main/com/mxy/design/adapter/object/adapater/UsbConnectorImpl.java b/src/main/com/mxy/design/adapter/object/adapater/UsbConnectorImpl.java new file mode 100644 index 0000000..f8eff55 --- /dev/null +++ b/src/main/com/mxy/design/adapter/object/adapater/UsbConnectorImpl.java @@ -0,0 +1,12 @@ +package com.mxy.design.adapter.object.adapater; + +/** + * 使用USB插槽 + */ +public class UsbConnectorImpl implements UsbConnector { + + @Override + public void usbDescription() { + System.out.println("使用USB插口"); + } +} diff --git a/src/main/com/mxy/design/decorator/Cake.java b/src/main/com/mxy/design/decorator/Cake.java new file mode 100644 index 0000000..848dc7b --- /dev/null +++ b/src/main/com/mxy/design/decorator/Cake.java @@ -0,0 +1,15 @@ +package com.mxy.design.decorator; + +public interface Cake { + + /** + * 描述 + */ + String description(); + + /** + * 花费金额 + */ + double cost(); + +} diff --git a/src/main/com/mxy/design/decorator/CakeDecorator.java b/src/main/com/mxy/design/decorator/CakeDecorator.java new file mode 100644 index 0000000..906d7ce --- /dev/null +++ b/src/main/com/mxy/design/decorator/CakeDecorator.java @@ -0,0 +1,12 @@ +package com.mxy.design.decorator; + +public abstract class CakeDecorator implements Cake { + + + protected Cake cake; + + public CakeDecorator(Cake cake) { + this.cake = cake; + } + +} diff --git a/src/main/com/mxy/design/decorator/CakeImpl.java b/src/main/com/mxy/design/decorator/CakeImpl.java new file mode 100644 index 0000000..4cd4567 --- /dev/null +++ b/src/main/com/mxy/design/decorator/CakeImpl.java @@ -0,0 +1,15 @@ +package com.mxy.design.decorator; + +public class CakeImpl implements Cake { + + + @Override + public String description() { + return "蛋糕"; + } + + @Override + public double cost() { + return 10; + } +} diff --git a/src/main/com/mxy/design/decorator/Candle.java b/src/main/com/mxy/design/decorator/Candle.java new file mode 100644 index 0000000..80a5669 --- /dev/null +++ b/src/main/com/mxy/design/decorator/Candle.java @@ -0,0 +1,29 @@ +package com.mxy.design.decorator; + + +public class Candle extends CakeDecorator { + + double candleCost = 30; + + public Candle(Cake cake) { + super(cake); + } + + @Override + public String description() { + return "蜡烛"; + } + + @Override + public double cost() { + return (candleCost) + (cake.cost()); + } + + /** + * 涨价 + * @param price + */ + public void risePrice(double price) { + this.candleCost += price; + } +} diff --git a/src/main/com/mxy/design/decorator/Fruits.java b/src/main/com/mxy/design/decorator/Fruits.java new file mode 100644 index 0000000..fe5e919 --- /dev/null +++ b/src/main/com/mxy/design/decorator/Fruits.java @@ -0,0 +1,25 @@ +package com.mxy.design.decorator; + +public class Fruits extends CakeDecorator { + + double fruitsCost = 20; + + /** + * 构造为了 调用父类方法 + * + * @param cake + */ + public Fruits(Cake cake) { + super(cake); + } + + @Override + public String description() { + return "水果"; + } + + @Override + public double cost() { + return (fruitsCost) + (cake.cost()); + } +} diff --git a/src/main/com/mxy/design/observer/MAIN.java b/src/main/com/mxy/design/observer/MAIN.java deleted file mode 100644 index bede442..0000000 --- a/src/main/com/mxy/design/observer/MAIN.java +++ /dev/null @@ -1,27 +0,0 @@ -package com.mxy.design.observer; - -/** - * 观察者模式 - */ -public class MAIN { - - public static void main(String[] args) { - - WeChatSubject subject = new WeChatSubjectImpl(); - //微信公众号关注的用户 - subject.followUser(new WeChatUser(1, "张三")); - subject.followUser(new WeChatUser(3, "李四")); - subject.followUser(new WeChatUser(2, "王五")); - //推送文章 - subject.notifyObServer("C#学习入门"); - //王五不关注了 觉得该公众号很烂 ^_^ - subject.cancelFollowUser(new WeChatUser(2,"王五")); - - //继续推送文章给其他两位 - subject.notifyObServer("spring学习入门"); - - - - } - -} diff --git a/src/main/com/mxy/design/observer/WeChatSubject.java b/src/main/com/mxy/design/observer/WeChatOfficialAccount.java similarity index 90% rename from src/main/com/mxy/design/observer/WeChatSubject.java rename to src/main/com/mxy/design/observer/WeChatOfficialAccount.java index 4f35023..3546a16 100644 --- a/src/main/com/mxy/design/observer/WeChatSubject.java +++ b/src/main/com/mxy/design/observer/WeChatOfficialAccount.java @@ -1,6 +1,6 @@ package com.mxy.design.observer; -public interface WeChatSubject { +public interface WeChatOfficialAccount { /** * 该公众号关注的用户 diff --git a/src/main/com/mxy/design/observer/WeChatSubjectImpl.java b/src/main/com/mxy/design/observer/WeChatOfficialAccountImpl.java similarity index 94% rename from src/main/com/mxy/design/observer/WeChatSubjectImpl.java rename to src/main/com/mxy/design/observer/WeChatOfficialAccountImpl.java index 536aac2..0fc34e9 100644 --- a/src/main/com/mxy/design/observer/WeChatSubjectImpl.java +++ b/src/main/com/mxy/design/observer/WeChatOfficialAccountImpl.java @@ -7,7 +7,7 @@ import java.util.List; -public class WeChatSubjectImpl implements WeChatSubject { +public class WeChatOfficialAccountImpl implements WeChatOfficialAccount { private List users = new ArrayList<>(); diff --git a/src/main/com/mxy/design/proxy/IStudent.java b/src/main/com/mxy/design/proxy/IStudent.java new file mode 100644 index 0000000..2477d73 --- /dev/null +++ b/src/main/com/mxy/design/proxy/IStudent.java @@ -0,0 +1,9 @@ +package com.mxy.design.proxy; + +public interface IStudent { + + void save(); + + void delete(); + +} diff --git a/src/main/com/mxy/design/proxy/StudentImpl.java b/src/main/com/mxy/design/proxy/StudentImpl.java new file mode 100644 index 0000000..3193002 --- /dev/null +++ b/src/main/com/mxy/design/proxy/StudentImpl.java @@ -0,0 +1,13 @@ +package com.mxy.design.proxy; + +public class StudentImpl implements IStudent { + @Override + public void save() { + System.out.println("保存ing"); + } + + @Override + public void delete() { + System.out.println("删除ing"); + } +} diff --git a/src/main/com/mxy/design/proxy/StudentProxy.java b/src/main/com/mxy/design/proxy/StudentProxy.java new file mode 100644 index 0000000..f5271c0 --- /dev/null +++ b/src/main/com/mxy/design/proxy/StudentProxy.java @@ -0,0 +1,36 @@ +package com.mxy.design.proxy; + +import java.util.Random; + +/** + * 重点类 静态代理 实现目标接口 + */ +public class StudentProxy implements IStudent { + + private IStudent student; + + public StudentProxy(IStudent iStudent) { + this.student = iStudent; + } + + @Override + public void save() { + System.out.println("==开启事务"); + student.save(); + System.out.println("==提交事务"); + } + + @Override + public void delete() { + Random random = new Random(); + //查询是否存在 + if(random.nextBoolean()){ + System.out.println("===开启事务"); + student.delete(); + System.out.println("===提交事务"); + }else{ + System.out.println("===该用户已经被删除"); + } + + } +} diff --git a/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/IStudent.java b/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/IStudent.java new file mode 100644 index 0000000..6ff4a41 --- /dev/null +++ b/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/IStudent.java @@ -0,0 +1,9 @@ +package com.mxy.design.proxy.dynamic.cglib.proxy; + +public interface IStudent { + + void save(); + + void delete(); + +} diff --git a/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/StudentCglibProxy.java b/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/StudentCglibProxy.java new file mode 100644 index 0000000..77f85b6 --- /dev/null +++ b/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/StudentCglibProxy.java @@ -0,0 +1,23 @@ +package com.mxy.design.proxy.dynamic.cglib.proxy; + +import net.sf.cglib.proxy.Enhancer; +import net.sf.cglib.proxy.MethodInterceptor; +import net.sf.cglib.proxy.MethodProxy; + +import java.lang.reflect.Method; + +/** + * 动态代理 实现JDK 接口 + */ +public class StudentCglibProxy implements MethodInterceptor { + + + @Override + public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable { + return methodProxy.invokeSuper(o, objects); + } + + public T getInstance(Class objClass) { + return (T)Enhancer.create(objClass.getClass(), this); + } +} diff --git a/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/StudentImpl.java b/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/StudentImpl.java new file mode 100644 index 0000000..dff60d9 --- /dev/null +++ b/src/main/com/mxy/design/proxy/dynamic/cglib/proxy/StudentImpl.java @@ -0,0 +1,13 @@ +package com.mxy.design.proxy.dynamic.cglib.proxy; + +public class StudentImpl implements IStudent { + @Override + public void save() { + System.out.println("保存ing"); + } + + @Override + public void delete() { + System.out.println("删除ing"); + } +} diff --git a/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/IStudent.java b/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/IStudent.java new file mode 100644 index 0000000..02a7667 --- /dev/null +++ b/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/IStudent.java @@ -0,0 +1,9 @@ +package com.mxy.design.proxy.dynamic.jdk.proxy; + +public interface IStudent { + + void save(); + + void delete(); + +} diff --git a/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/StudentImpl.java b/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/StudentImpl.java new file mode 100644 index 0000000..2c7cf4e --- /dev/null +++ b/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/StudentImpl.java @@ -0,0 +1,13 @@ +package com.mxy.design.proxy.dynamic.jdk.proxy; + +public class StudentImpl implements IStudent { + @Override + public void save() { + System.out.println("保存ing"); + } + + @Override + public void delete() { + System.out.println("删除ing"); + } +} diff --git a/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/StudentJdkProxy.java b/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/StudentJdkProxy.java new file mode 100644 index 0000000..f2d6e96 --- /dev/null +++ b/src/main/com/mxy/design/proxy/dynamic/jdk/proxy/StudentJdkProxy.java @@ -0,0 +1,26 @@ +package com.mxy.design.proxy.dynamic.jdk.proxy; + +import java.lang.reflect.InvocationHandler; +import java.lang.reflect.Method; +import java.lang.reflect.Proxy; + +/** + * 动态代理 实现JDK 接口 + */ +public class StudentJdkProxy implements InvocationHandler { + + private Object target; + + public StudentJdkProxy(Object object) { + this.target = object; + } + + public T getInstance() { + return (T) Proxy.newProxyInstance(target.getClass().getClassLoader(), target.getClass().getInterfaces(), this); + } + + @Override + public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { + return method.invoke(target, args); + } +} diff --git a/src/main/com/mxy/design/strategy/DiscountStrategy.java b/src/main/com/mxy/design/strategy/DiscountStrategy.java new file mode 100644 index 0000000..a34e17c --- /dev/null +++ b/src/main/com/mxy/design/strategy/DiscountStrategy.java @@ -0,0 +1,12 @@ +package com.mxy.design.strategy; + +/** + * 策略角色 + */ +public interface DiscountStrategy { + + + double calculateDiscount(double price); + + +} diff --git a/src/main/com/mxy/design/strategy/NewCustomerQuoteStrategy.java b/src/main/com/mxy/design/strategy/NewCustomerQuoteStrategy.java new file mode 100644 index 0000000..af81ccc --- /dev/null +++ b/src/main/com/mxy/design/strategy/NewCustomerQuoteStrategy.java @@ -0,0 +1,15 @@ +package com.mxy.design.strategy; + +import java.math.BigDecimal; + +/** + * 策略角色实现 新客户 + */ +public class NewCustomerQuoteStrategy implements DiscountStrategy { + + @Override + public double calculateDiscount(double price) { + System.out.println("老顾客9折"); + return new BigDecimal(price).multiply(new BigDecimal(0.9)).doubleValue(); + } +} diff --git a/src/main/com/mxy/design/strategy/OldCustomerQuoteStrategy.java b/src/main/com/mxy/design/strategy/OldCustomerQuoteStrategy.java new file mode 100644 index 0000000..768c63c --- /dev/null +++ b/src/main/com/mxy/design/strategy/OldCustomerQuoteStrategy.java @@ -0,0 +1,17 @@ +package com.mxy.design.strategy; + +import java.math.BigDecimal; + +/** + * 策略角色实现 老客户 + */ +public class OldCustomerQuoteStrategy implements DiscountStrategy { + + + + @Override + public double calculateDiscount(double price) { + System.out.println("老顾客8折"); + return new BigDecimal(price).multiply(new BigDecimal(0.8)).doubleValue(); + } +} diff --git a/src/main/com/mxy/design/strategy/StrategyContext.java b/src/main/com/mxy/design/strategy/StrategyContext.java new file mode 100644 index 0000000..63d5ccf --- /dev/null +++ b/src/main/com/mxy/design/strategy/StrategyContext.java @@ -0,0 +1,24 @@ +package com.mxy.design.strategy; + +/** + * 策略环境 重点类 + */ +public class StrategyContext { + + private DiscountStrategy discountStrategy; + + public StrategyContext(DiscountStrategy discountStrategy) { + this.discountStrategy = discountStrategy; + } + + /** + * 多态机制 + * @param price + * @return + */ + public double invoke(double price) { + return discountStrategy.calculateDiscount(price); + } + + +} diff --git a/src/main/com/mxy/design/strategy/VipCustomerQuoteStrategy.java b/src/main/com/mxy/design/strategy/VipCustomerQuoteStrategy.java new file mode 100644 index 0000000..d73742c --- /dev/null +++ b/src/main/com/mxy/design/strategy/VipCustomerQuoteStrategy.java @@ -0,0 +1,15 @@ +package com.mxy.design.strategy; + +import java.math.BigDecimal; + +/** + * 策略角色实现 vip客户 + */ +public class VipCustomerQuoteStrategy implements DiscountStrategy { + + @Override + public double calculateDiscount(double price) { + System.out.println("vip顾客5折"); + return new BigDecimal(price).multiply(new BigDecimal(0.5)).doubleValue(); + } +} diff --git a/src/main/com/mxy/design/template/ProcessTempLate.java b/src/main/com/mxy/design/template/ProcessTempLate.java new file mode 100644 index 0000000..74aed65 --- /dev/null +++ b/src/main/com/mxy/design/template/ProcessTempLate.java @@ -0,0 +1,36 @@ +package com.mxy.design.template; + +/** + * 抽象模板 + */ +public abstract class ProcessTempLate { + + /** + * 校验参数 + */ + protected void checkParam(String... arg) { + if( null == arg){ + System.out.println("参数为null"); + return; + } + } + + /** + * 主逻辑业务 + */ + protected abstract void mainLogic(); + + /** + * 执行模板 + */ + protected void invoke(String... param) { + try { + checkParam(param); + mainLogic(); + } catch (Exception e) { + e.printStackTrace(); + } + + } + +} diff --git a/src/test/com/mxy/design/adapter/ClassesAdapterTest.java b/src/test/com/mxy/design/adapter/ClassesAdapterTest.java new file mode 100644 index 0000000..06bf946 --- /dev/null +++ b/src/test/com/mxy/design/adapter/ClassesAdapterTest.java @@ -0,0 +1,34 @@ +package com.mxy.design.adapter; + +import com.mxy.design.adapter.classes.adapter.Ps2Connector; +import com.mxy.design.adapter.classes.adapter.Ps2UsbAdapter; +import com.mxy.design.adapter.classes.adapter.PsConnectorImpl; +import org.junit.Test; + +/** + * 适配器:这种模式涉及到一个单一的类，该类负责加入独立的或不兼容的接口功能 + * 适配器分为两类：类适配器模式、对象的适配器模式,接口适配器 + * 不同点: + * 1.类适配器：使用继承 + * 2.对象适配器：使用组合(建议使用组合模式 降低耦合) + * 3.继承原有方法 子类需要重写需要的 并不需要全部都是实现 + */ +public class ClassesAdapterTest { + + + /** + * 类适配器 + */ + @Test + public void logicTest() { + System.out.println("======适配前======="); + Ps2Connector ps2Connector = new PsConnectorImpl(); + ps2Connector.ps2Description(); + System.out.println("======适配后======"); + Ps2Connector adapter = new Ps2UsbAdapter(); + adapter.ps2Description(); + } + + + +} diff --git a/src/test/com/mxy/design/adapter/InterfaceAdapterTest.java b/src/test/com/mxy/design/adapter/InterfaceAdapterTest.java new file mode 100644 index 0000000..2836d06 --- /dev/null +++ b/src/test/com/mxy/design/adapter/InterfaceAdapterTest.java @@ -0,0 +1,37 @@ +package com.mxy.design.adapter; + +import com.mxy.design.adapter.interfaces.adapter.Chat; +import com.mxy.design.adapter.interfaces.adapter.Linux; +import com.mxy.design.adapter.interfaces.adapter.Port; +import com.mxy.design.adapter.interfaces.adapter.Tomcat; +import org.junit.Test; +/** + * 适配器:这种模式涉及到一个单一的类，该类负责加入独立的或不兼容的接口功能 + * 适配器分为两类：类适配器模式、对象的适配器模式,接口适配器 + * 不同点: + * 1.类适配器：使用继承 + * 2.对象适配器：使用组合(建议使用组合模式 降低耦合) + * 3.继承原有方法 子类需要重写需要的 并不需要全部都是实现 + */ +public class InterfaceAdapterTest { + + /** + * 接口适配器 + */ + @Test + public void logicTest() { + System.out.println("====LINUX使用原生的端口"); + Port linuxPort = new Linux(); + linuxPort.FTP(); + linuxPort.SSH(); + linuxPort.NET(); + System.out.println("====TOMCAT抽象并重写的端口"); + Port tomcatPort = new Tomcat(); + tomcatPort.NET(); + System.out.println("====CHAT抽象并重写的端口"); + Port ChatPort = new Chat(); + ChatPort.FTP(); + ChatPort.NET(); + } + +} diff --git a/src/test/com/mxy/design/adapter/ObjectAdapterTest.java b/src/test/com/mxy/design/adapter/ObjectAdapterTest.java new file mode 100644 index 0000000..ec5b7ed --- /dev/null +++ b/src/test/com/mxy/design/adapter/ObjectAdapterTest.java @@ -0,0 +1,36 @@ +package com.mxy.design.adapter; + +import com.mxy.design.adapter.object.adapater.Ps2Connector; +import com.mxy.design.adapter.object.adapater.Ps2UsbAdapter; +import com.mxy.design.adapter.object.adapater.PsConnectorImpl; +import com.mxy.design.adapter.object.adapater.UsbConnectorImpl; +import org.junit.Test; + +/** + * 适配器:这种模式涉及到一个单一的类，该类负责加入独立的或不兼容的接口功能 + * 适配器分为两类：类适配器模式、对象的适配器模式,接口适配器 + * 不同点: + * 1.类适配器：使用继承 + * 2.对象适配器：使用组合(建议使用组合模式 降低耦合) + * 3.继承原有方法 子类需要重写需要的 并不需要全部都是实现 + */ +public class ObjectAdapterTest { + + + /** + * 对象适配器 + */ + @Test + public void logicTest() { + + System.out.println("======适配前======="); + Ps2Connector ps2Connector = new PsConnectorImpl(); + ps2Connector.ps2Description(); + System.out.println("======适配后======"); + Ps2Connector adapter = new Ps2UsbAdapter(new UsbConnectorImpl()); + adapter.ps2Description(); + } + + + +} diff --git a/src/test/com/mxy/design/decorator/DecoratorTest.java b/src/test/com/mxy/design/decorator/DecoratorTest.java new file mode 100644 index 0000000..ceade0f --- /dev/null +++ b/src/test/com/mxy/design/decorator/DecoratorTest.java @@ -0,0 +1,30 @@ +package com.mxy.design.decorator; + +import org.junit.Test; + +/** + * 装饰模式:增加功能,不改变接口 + * 对比 + * 适配器模式:改变接口名,不改变功能 + * 对比 + * 代理模式:代理类对被代理的对象有控制权，决定其执行或者不执行。 + * 而装饰模式中，装饰类对代理对象没有控制权，只能为其增加一层装饰，以加强被装饰对象的功能。 + */ +public class DecoratorTest { + + @Test + public void logicTest() { + System.out.println("装饰前======"); + Cake cake = new CakeImpl(); + System.out.println(cake.description()+"花费:"+cake.cost()); + System.out.println("装饰后======"); + Cake addFruits = new Fruits(cake); + System.out.println("只增加"+addFruits.description()+"共花费:"+addFruits.cost()); + Cake addCandle = new Candle(cake); + System.out.println("只增加"+addCandle.description()+"共花费:"+addCandle.cost()); + //为期增加功能 向下转型 + ((Candle) addCandle).risePrice(10); + System.out.println("涨价后"+addCandle.description()+"总共花费:"+addCandle.cost()); + } + +} diff --git a/src/test/com/mxy/design/observer/ObServerTest.java b/src/test/com/mxy/design/observer/ObServerTest.java new file mode 100644 index 0000000..3e1ca39 --- /dev/null +++ b/src/test/com/mxy/design/observer/ObServerTest.java @@ -0,0 +1,28 @@ +package com.mxy.design.observer; + +import org.junit.Test; + +/** + * 观察者模式:在对象之间定义了一对多的依赖，这样一来，当一个对象改变状态，依赖它的对象会收到通知并自动更新。 + * 其实就是发布订阅模式，发布者发布信息，订阅者获取信息，订阅了就能收到信息，没订阅就收不到信息。 + */ + +public class ObServerTest { + + @Test + public void logicTest() { + WeChatOfficialAccount account = new WeChatOfficialAccountImpl(); + //微信公众号关注的用户 + account.followUser(new WeChatUser(1, "张三")); + account.followUser(new WeChatUser(3, "李四")); + account.followUser(new WeChatUser(2, "王五")); + //推送文章 + account.notifyObServer("C#学习入门"); + //王五不关注了 觉得该公众号很烂 ^_^ + account.cancelFollowUser(new WeChatUser(2, "王五")); + //继续推送文章给其他两位 + account.notifyObServer("spring学习入门"); + } + + +} diff --git a/src/test/com/mxy/design/proxy/DynamicProxyTest.java b/src/test/com/mxy/design/proxy/DynamicProxyTest.java new file mode 100644 index 0000000..5867323 --- /dev/null +++ b/src/test/com/mxy/design/proxy/DynamicProxyTest.java @@ -0,0 +1,68 @@ +package com.mxy.design.proxy; + +import com.mxy.design.proxy.dynamic.cglib.proxy.StudentCglibProxy; +import com.mxy.design.proxy.dynamic.jdk.proxy.StudentJdkProxy; +import org.junit.Test; + +import java.util.Random; + +/** + * 装饰模式:增加功能,不改变接口 + * 对比 + * 适配器模式:改变接口名,不改变功能 + * 对比 + * 代理模式:代理类对被代理的对象有控制权，决定其执行或者不执行。 + * 而装饰模式中，装饰类对代理对象没有控制权，只能为其增加一层装饰，以加强被装饰对象的功能。 + * 动态代理：原理通过反射来获得代理的实现 常用的有JDK 自带jdkProxy 与 cglib 之前hibernate使用 javassist + * 好处：当时用动态代理 一个动态代理模板就能代理多个目标类 只需要传入接口 通过反射得到实现目标类方法 + */ +public class DynamicProxyTest { + + + @Test + public void cglibProxyTest() { + System.out.println("====使用代理模式前"); + IStudent iStudent = new StudentImpl(); + iStudent.save(); + iStudent.delete(); + System.out.println(); + System.out.println("=====使用CGLIB代理模式后"); + IStudent cglibProxy = new StudentCglibProxy().getInstance(IStudent.class); + save(cglibProxy); + delete(cglibProxy); + } + + @Test + public void jdkProxyTest() { + System.out.println("====使用代理模式前"); + IStudent iStudent = new StudentImpl(); + iStudent.save(); + iStudent.delete(); + System.out.println(); + System.out.println("=====使用JDK动态代理模式后"); + IStudent jdkProxy = new StudentJdkProxy(iStudent).getInstance(); + + //与静态代理输出结果保持一致 + save(jdkProxy); + + //查询是否存在 + delete(jdkProxy); + } + + private void delete(IStudent jdkProxy) { + if (new Random().nextBoolean()) { + System.out.println("===开启事务"); + jdkProxy.delete(); + System.out.println("===提交事务"); + } else { + System.out.println("===该用户已经被删除"); + } + } + + private void save(IStudent jdkProxy) { + System.out.println("==开启事务"); + jdkProxy.save(); + System.out.println("==提交事务"); + } + +} diff --git a/src/test/com/mxy/design/proxy/StaticProxyTest.java b/src/test/com/mxy/design/proxy/StaticProxyTest.java new file mode 100644 index 0000000..2d4fd1a --- /dev/null +++ b/src/test/com/mxy/design/proxy/StaticProxyTest.java @@ -0,0 +1,35 @@ +package com.mxy.design.proxy; + +import org.junit.Test; + +/** + * 装饰模式:增加功能,不改变接口 + * 对比 + * 适配器模式:改变接口名,不改变功能 + * 对比 + * 代理模式:代理类对被代理的对象有控制权，决定其执行或者不执行。 + * 而装饰模式中，装饰类对代理对象没有控制权，只能为其增加一层装饰，以加强被装饰对象的功能。 + * + * 缺点： + * + * 1）代理类和委托类实现了相同的接口，代理类通过委托类实现了相同的方法。这样就出现了大量的代码重复。如果接口增加一个方法，除了所有实现类需要实现这个方法外，所有代理类也需要实现此方法。增加了代码维护的复杂度。 + * + * 2）代理对象只服务于一种类型的对象，如果要服务多类型的对象。势必要为每一种对象都进行代理，静态代理在程序规模稍大时就无法胜任了。如上的代码是只为UserManager类的访问提供了代理，但是如果还要为其他类如Department类提供代理的话，就需要我们再次添加代理Department的代理类。 + */ +public class StaticProxyTest { + + + @Test + public void logicTest() { + System.out.println("====使用代理模式前"); + IStudent iStudent = new StudentImpl(); + iStudent.save(); + iStudent.delete(); + System.out.println(); + System.out.println("=====使用代理模式后"); + IStudent studentProxy = new StudentProxy(iStudent); + studentProxy.save(); + studentProxy.delete(); + } + +} diff --git a/src/test/com/mxy/design/strategy/StrategyTest.java b/src/test/com/mxy/design/strategy/StrategyTest.java new file mode 100644 index 0000000..87b77f5 --- /dev/null +++ b/src/test/com/mxy/design/strategy/StrategyTest.java @@ -0,0 +1,20 @@ +package com.mxy.design.strategy; + +import org.junit.Test; + +/** + * 策略模式:定义了一系列的算法，并将每一个算法封装起来，使每个算法可以相互替代，使算法本身和使用算法的客户端分割开来，相互独立。 + * 开发中：解决相同条件的多层if...else.. + */ +public class StrategyTest { + + + @Test + public void logicTest(){ + System.out.println("======不同客户，不同的折扣！======="); + System.out.println("老顾客实际消费："+new StrategyContext(new OldCustomerQuoteStrategy()).invoke(10)); + System.out.println("vip顾客实际消费："+new StrategyContext(new VipCustomerQuoteStrategy()).invoke(10)); + System.out.println("新顾客实际消费："+new StrategyContext(new NewCustomerQuoteStrategy()).invoke(10)); + } + +} diff --git a/src/test/com/mxy/design/template/TempLateTest.java b/src/test/com/mxy/design/template/TempLateTest.java new file mode 100644 index 0000000..4570fcf --- /dev/null +++ b/src/test/com/mxy/design/template/TempLateTest.java @@ -0,0 +1,29 @@ +package com.mxy.design.template; + +import org.junit.Test; + +/** + * 　模板方法　一个模板方法是定义在抽象类中的，把基本操作方法组合在一起形成一个总算法或一个总行为的方法。 + * 本人倾向于使用内部构造实现 + * JDK 中的servlet 就是一个典型的模板方法 + */ +public class TempLateTest { + @Test + public void logicTest() { + + + new ProcessTempLate() { + + @Override + protected void checkParam(String... arg) { + System.out.println(arg.length); + } + + @Override + protected void mainLogic() { + System.out.println("处理主逻辑"); + } + }.invoke("参数1","参数2"); + + } +} diff --git a/target/classes/com/mxy/design/adapter/classes/adapter/Ps2Connector.class b/target/classes/com/mxy/design/adapter/classes/adapter/Ps2Connector.class new file mode 100644 index 0000000..96a286e Binary files /dev/null and b/target/classes/com/mxy/design/adapter/classes/adapter/Ps2Connector.class differ diff --git a/target/classes/com/mxy/design/adapter/classes/adapter/Ps2UsbAdapter.class b/target/classes/com/mxy/design/adapter/classes/adapter/Ps2UsbAdapter.class new file mode 100644 index 0000000..ce7cdad Binary files /dev/null and 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