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@squirreljs/squirre-ioc-container

v0.1.2

Published

🐿️ Squirrel IOC Container is an IoC container library based on TypeScript. It can help developers better manage dependency injection, reduce the coupling between code, and improve code maintainability. Squirrel IOC Container provides a simple and easy-to

Downloads

6

Readme

Squirrel IOC Container

🎉 Squirrel IOC Container (Dependency Inject) 是一款基於TypeScript 實現的IoC 容器庫。它可以幫助開發者更好地管理依賴注入,降低代碼之間的耦合度,提高代碼的可維護性。Squirrel IOC Container 提供了一個簡單易用的API,可以輕鬆地實現依賴注入和控制反轉。如果您正在尋找一款高效、易用的IoC 容器庫,那麼Squirrel IOC Container 絕對是您的不二之選。

輕鬆掌握依賴注入——Squirrel IOC Container

  • 🐿️ 大家好呀!今天我要來介紹一個非常好用的TS IOC 容器庫,它的名字叫做Squirrel IOC Container。🌰
  • 💻 如果你是一名Web 開發者,那麼你一定知道依賴注入(DI)在程序設計中的重要性。而Squirrel IOC Container 就是為了方便我們進行依賴注入的工具之一。👨‍💻
  • 👍 這個庫使用簡單,代碼清晰易懂,可以幫助我們更加靈活地管理各種依賴關係。它還提供了自動注入、循環依賴解決、命名空間功能等多種特性。🤩
  • 📚 如果你想深入了解Squirrel IOC Container 和依賴注入的相關知識,它的GitHub 頁面上有詳細的文檔和示例代碼供你參考。😎
  • 👉 所以,如果你正在尋找一款高效易用的IOC 容器庫,不妨試試Squirrel IOC Container 吧!🐿️

轻松掌握依赖注入——Squirrel IOC Container

  • 🐿️ 大家好呀!今天我要来介绍一个非常好用的 TS IOC 容器库,它的名字叫做 Squirrel IOC Container。 🌰
  • 💻 如果你是一名 Web 开发者,那么你一定知道依赖注入(DI)在程序设计中的重要性。而 Squirrel IOC Container 就是为了方便我们进行依赖注入的工具之一。 👨‍💻
  • 👍 这个库使用简单,代码清晰易懂,可以帮助我们更加灵活地管理各种依赖关系。它还提供了自动注入、循环依赖解决、命名空间功能等多种特性。 🤩
  • 📚 如果你想深入了解 Squirrel IOC Container 和依赖注入的相关知识,它的 GitHub 页面上有详细的文档和示例代码供你参考。 😎
  • 👉 所以,如果你正在寻找一款高效易用的 IOC 容器库,不妨试试 Squirrel IOC Container 吧! 🐿️

介紹

目前已經實現的功能有:

  1. 依賴標記:目前提供了:@Component@Service@Controller@Repository 四種類裝飾器標記,標記之後即可在容器中獲取到實例(支持具名/無名 標記,無名默認按照類型小寫注入);注:@Component('ID') 為通用的Component 裝飾器,用於標識一個類為Component,Service、Controller、Repository 都是Component 的拓展實現
  2. 依賴注入:@Inject 裝飾器注入,支持Constructor 注入和Property 注入(注:Constructor 注入僅支持具名模塊注入);
  3. 注入方法:支持配置選擇注入方式,目前支持PropertyGetter 注入( dependencyInstanceInjectMethod 配置項);
  4. 循環依賴檢測:在初始化容器時、加載實例時會檢測循環依賴 ,如果存在循環依賴則會拋出異常;
  5. 完備的異常檢測:ServiceInjectableException, CyclicDependencyException, ServiceNotFoundException, ServiceAlreadyRegisteredException, InjectWithoutNameException
  6. 代理自身容器實例:在容器中注入自身容器實例 ,可以通過容器實例獲取到其他服務實例;
  7. 作用域注入:支持單例注入**@Scope('Singleton')** 和每次注入**@Scope('Prototype')** 兩種模式,默認為單例注入; @Inject() readonly service3: Service3; // 注入無名屬性
  8. 生命週期注入:支持**@PostConstruct** 在服務實例化之後執行,能夠綁定到多個方法上並按照定義的順序依次執行;

使用方法

// Path: src/ioc/container.ts
import { Service, Inject, InjectType, Container, ContainerConstant } from '@squirreljs/squirre-ioc-container';

@Service()
class Service3 {
  test() {
    console.log('Service3 test');
  }
}

@Service('ServiceIdentifier2')
class Service2 {
  test() {
    console.log('Service2 test');
  }
}

@Service()
class Service1 {
  @Inject() readonly service3: Service3; // 注入無名屬性
  constructor(@Inject('ServiceIdentifier2') readonly service2: Service2) {} // 構造函數注入具名屬性
}

// 創建代理容器實例
const IocContainer = new Container({ dependencyInstanceInjectMethod: 'Property' });
IocContainer.init(); // 初始化IOC容器,此方法會自動初始化所有已註冊的服務並且執行一次循環檢測,方便開發者在開發階段發現循環依賴問題

// 測試實例
@Service('TestService')
@InjectType('Constructor')
class Test {
  @Inject(ContainerConstant.IOC_INTERNAL_SERVICE_ID) public readonly serviceInternal: Container; // 注入代理容器實例
  @Inject() private readonly service1: Service1; // 無名屬性注入

  constructor(public readonly Prop1: string) {}

  test() {
    console.log('\n Test Prop -> Prop1 ', this.Prop1);
    console.log('\n Test Prop -> service1 ', this.service1);
    console.log('\n Test Prop -> this ', IocContainer.services);
  }
}

// 執行測試
const TestServiceConstructor = IocContainer.getService<typeof Test>('TestService');
const TestServiceInstance = new TestServiceConstructor('Prop From IOC Container Constructor');
TestServiceInstance.test();

License

SquirrelJS © 2023 - MIT License