From 78507e12a29eac235d8e9190f8e0fc2c3a727b44 Mon Sep 17 00:00:00 2001 From: Bunny <1319900154@qq.com> Date: Sat, 1 Feb 2025 20:32:09 +0800 Subject: [PATCH] =?UTF-8?q?feat:=20=E5=BB=BA=E9=80=A0=E8=80=85=E6=A8=A1?= =?UTF-8?q?=E5=BC=8F?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../设计模式-v2/image-20250201203116885.png | Bin 0 -> 25693 bytes README/设计模式-v2.md | 166 ++++++++++++++++++ .../cn/bunny/pattern5/demo3/CommandDemo.java | 146 +++++++++++++++ 3 files changed, 312 insertions(+) create mode 100644 README/images/设计模式-v2/image-20250201203116885.png create mode 100644 pattern/src/main/java/cn/bunny/pattern5/demo3/CommandDemo.java diff --git a/README/images/设计模式-v2/image-20250201203116885.png b/README/images/设计模式-v2/image-20250201203116885.png new file mode 100644 index 0000000000000000000000000000000000000000..179ed3818fc2ffcff8233dd3b7b185d4de0135a0 GIT binary patch literal 25693 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`Computer` 对象。 + +#### 代码示例 + +```java +public class CommandDemo { + public static void main(String[] args) { + ConcreteLowComputerBuilder concreteLowComputerBuilder = new ConcreteLowComputerBuilder(); + Director director = new Director(concreteLowComputerBuilder); + director.constructComputer(); + System.out.println(concreteLowComputerBuilder.getComputer()); + + System.out.println("\n-----------------分割线-----------------\n"); + + ConcreteHighComputerBuilder concreteHighComputerBuilder = new ConcreteHighComputerBuilder(); + director = new Director(concreteHighComputerBuilder); + director.constructComputer(); + System.out.println(concreteHighComputerBuilder.getComputer()); + } + + // 构建产品接口 + interface ComputerBuilder { + + /** + * 构建 CPU 方法 + */ + void buildCPU(); + + /** + * 构建 RAM 方法 + */ + void buildRAM(); + + /** + * 构建 磁盘 方法 + */ + void buildHardDrive(); + + /** + * 返回产品 + * + * @return Computer + */ + Computer getComputer(); + } + + // 产品类 + @Data + static class Computer { + private String CPU; + private String RAM; + private String hardDrive; + } + + // 构建低端产品 + static class ConcreteLowComputerBuilder implements ComputerBuilder { + private final Computer computer = new Computer(); + + /** + * 构建 CPU 方法 + */ + @Override + public void buildCPU() { + computer.setCPU("Low CPU"); + } + + /** + * 构建 RAM 方法 + */ + @Override + public void buildRAM() { + computer.setRAM("Low RAM"); + } + + /** + * 构建 磁盘 方法 + */ + @Override + public void buildHardDrive() { + computer.setHardDrive("Low Driver"); + } + + /** + * 返回产品 + * + * @return Computer + */ + @Override + public Computer getComputer() { + return computer; + } + } + + // 构建高端产品 + static class ConcreteHighComputerBuilder implements ComputerBuilder { + private final Computer computer = new Computer(); + + /** + * 构建 CPU 方法 + */ + @Override + public void buildCPU() { + computer.setCPU("High CPU"); + } + + /** + * 构建 RAM 方法 + */ + @Override + public void buildRAM() { + computer.setRAM("High RAM"); + } + + /** + * 构建 磁盘 方法 + */ + @Override + public void buildHardDrive() { + computer.setHardDrive("High Driver"); + } + + /** + * 返回产品 + * + * @return Computer + */ + @Override + public Computer getComputer() { + return computer; + } + } + + // 构建者 + public static class Director { + private final ComputerBuilder builder; + + public Director(ComputerBuilder builder) { + this.builder = builder; + } + + public void constructComputer() { + builder.buildCPU(); + builder.buildRAM(); + builder.buildHardDrive(); + } + } +} +``` + +#### 运行结果 + +```java +CommandDemo.Computer(CPU=Low CPU, RAM=Low RAM, hardDrive=Low Driver) + +-----------------分割线----------------- + +CommandDemo.Computer(CPU=High CPU, RAM=High RAM, hardDrive=High Driver) +``` + diff --git a/pattern/src/main/java/cn/bunny/pattern5/demo3/CommandDemo.java b/pattern/src/main/java/cn/bunny/pattern5/demo3/CommandDemo.java new file mode 100644 index 0000000..dc57cdf --- /dev/null +++ b/pattern/src/main/java/cn/bunny/pattern5/demo3/CommandDemo.java @@ -0,0 +1,146 @@ +package cn.bunny.pattern5.demo3; + +import lombok.Data; + +public class CommandDemo { + public static void main(String[] args) { + ConcreteLowComputerBuilder concreteLowComputerBuilder = new ConcreteLowComputerBuilder(); + Director director = new Director(concreteLowComputerBuilder); + director.constructComputer(); + System.out.println(concreteLowComputerBuilder.getComputer()); + + System.out.println("\n-----------------分割线-----------------\n"); + + ConcreteHighComputerBuilder concreteHighComputerBuilder = new ConcreteHighComputerBuilder(); + director = new Director(concreteHighComputerBuilder); + director.constructComputer(); + System.out.println(concreteHighComputerBuilder.getComputer()); + } + + // 构建产品接口 + interface ComputerBuilder { + + /** + * 构建 CPU 方法 + */ + void buildCPU(); + + /** + * 构建 RAM 方法 + */ + void buildRAM(); + + /** + * 构建 磁盘 方法 + */ + void buildHardDrive(); + + /** + * 返回产品 + * + * @return Computer + */ + Computer getComputer(); + } + + // 产品类 + @Data + static class Computer { + private String CPU; + private String RAM; + private String hardDrive; + } + + // 构建低端产品 + static class ConcreteLowComputerBuilder implements ComputerBuilder { + private final Computer computer = new Computer(); + + /** + * 构建 CPU 方法 + */ + @Override + public void buildCPU() { + computer.setCPU("Low CPU"); + } + + /** + * 构建 RAM 方法 + */ + @Override + public void buildRAM() { + computer.setRAM("Low RAM"); + } + + /** + * 构建 磁盘 方法 + */ + @Override + public void buildHardDrive() { + computer.setHardDrive("Low Driver"); + } + + /** + * 返回产品 + * + * @return Computer + */ + @Override + public Computer getComputer() { + return computer; + } + } + + // 构建高端产品 + static class ConcreteHighComputerBuilder implements ComputerBuilder { + private final Computer computer = new Computer(); + + /** + * 构建 CPU 方法 + */ + @Override + public void buildCPU() { + computer.setCPU("High CPU"); + } + + /** + * 构建 RAM 方法 + */ + @Override + public void buildRAM() { + computer.setRAM("High RAM"); + } + + /** + * 构建 磁盘 方法 + */ + @Override + public void buildHardDrive() { + computer.setHardDrive("High Driver"); + } + + /** + * 返回产品 + * + * @return Computer + */ + @Override + public Computer getComputer() { + return computer; + } + } + + // 构建者 + public static class Director { + private final ComputerBuilder builder; + + public Director(ComputerBuilder builder) { + this.builder = builder; + } + + public void constructComputer() { + builder.buildCPU(); + builder.buildRAM(); + builder.buildHardDrive(); + } + } +}