自动加载非CLI生成的Angular 8组件可以通过以下步骤实现:
import { Compiler, ComponentFactory, ComponentFactoryResolver, Injectable, Injector, NgModuleRef, Type } from '@angular/core';
import { CommonModule } from '@angular/common';
import { BrowserModule } from '@angular/platform-browser';
import { createCustomElement } from '@angular/elements';
import { AppModule } from './app.module';
@Injectable()
export class ComponentLoaderService {
private componentFactory: ComponentFactory<any>;
constructor(private compiler: Compiler, private injector: Injector) {}
loadComponent(): Promise<ComponentFactory<any>> {
return import('../dynamic-components/dynamic-component/dynamic-component.component')
.then(({ DynamicComponent }) => {
@NgModule({
imports: [CommonModule, BrowserModule, AppModule],
declarations: [DynamicComponent],
entryComponents: [DynamicComponent],
})
class DynamicComponentModule {
ngDoBootstrap(appRef: NgModuleRef<any>) {
const element = createCustomElement(DynamicComponent, { injector: this.injector });
customElements.define('dynamic-component', element);
appRef.bootstrap(DynamicComponent);
}
}
return this.compiler.compileModuleAndAllComponentsAsync(DynamicComponentModule);
})
.then((compiledModule) => {
const moduleFactory = compiledModule.ngModuleFactory;
this.componentFactory = moduleFactory.componentFactories.find((comp) => comp.componentType.name === 'DynamicComponent');
return this.componentFactory;
});
}
}
@Component({
selector: 'app-root',
template: `
<div>
<button (click)="loadDynamicComponent()">Load Dynamic Component</button>
<dynamic-component *ngIf="dynamicComponentLoaded"></dynamic-component>
</div>
`,
})
export class AppComponent {
dynamicComponentLoaded = false;
constructor(private componentLoaderService: ComponentLoaderService) {}
loadDynamicComponent() {
this.componentLoaderService.loadComponent()
.then((componentFactory) => {
// 使用ComponentFactory创建动态组件实例
const componentRef = componentFactory.create(this.injector);
// 将动态组件实例添加到DOM中
document.body.appendChild(componentRef.location.nativeElement);
this.dynamicComponentLoaded = true;
});
}
}
通过上述步骤,你可以实现在Angular 8项目中动态加载非CLI生成的组件。请注意,以上代码仅供参考,具体实现可能根据你的项目结构和需求有所不同。
注:这里没有提及具体的腾讯云产品和链接地址,因为腾讯云并没有直接与Angular组件加载相关的产品。
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