如何在 Angular2 中使用组件渲染动态模板 [英] How to render a dynamic template with components in Angular2

问题描述

我尝试了许多 stackoverflow 选项，例如 加载现有组件动态 Angular 2 Final Release.

I've tried many stackoverflow options like Load existing components dynamically Angular 2 Final Release.

我想要做的是获得一个带有 ajax 请求的 html 页面，并在我的自定义组件中渲染/编译这个模板.

What i want to do is get a html page with a ajax request and render/compile this template in my custom component.

我发现 angular2 有两个已弃用的组件，我必须使用 ComponentFactoryResolver.

I've figured out that angular2 has two deprecated components and that i have to use ComponentFactoryResolver.

在我的旧解决方案中，我可以设置一个[innerHtml]"来呈现 HTML.现在我需要一个新的解决方案.

In my old solution i could just set a '[innerHtml]' to render the HTML. Now i need a new solution.

谁能帮帮我?

page.component.ts

import { Component, ViewChild, ViewContainerRef, ComponentFactory, OnInit, ComponentFactoryResolver } from '@angular/core';
import { ActivatedRoute, Params } from '@angular/router';


@Component({
    selector: "wd-page",
    templateUrl: "/app/page/page.component.html",
    providers: []
})
export class PageComponent implements OnInit {

    // we need the viewcontainer ref, so explicitly define that, or we'll get back
    // an element ref.
    @ViewChild('dynamicChild', { read: ViewContainerRef })
    private target: ViewContainerRef;

    private page = {
        Source: "<div><h2>Hello world</h2><one-of-my-components></one-of-my-components></div>"
    }


    constructor(
        private vcRef: ViewContainerRef,
        private resolver: ComponentFactoryResolver) { }


        ngOnInit() {
            //What code do i need here?
        }
}

<div #dynamicChild></div>

<!-- Old implementation!

    <div *ngIf="!showSource" [innerHTML]="page">
    </div>
-->

推荐答案

问题解决了 感谢 Yurzui，

Problem solved Thanks to Yurzui,

https://plnkr.co/edit/TAbupH4si62x10QZ7xuc?p=preview

来自不同帖子的通用 HTML 出口(Angular 2.1.0 动态创建子组件) 可用于渲染带有自定义指令的模板.

The generic HTML outlete from a different post (Angular 2.1.0 create child component on the fly, dynamically) can be used to render templates with custom directives in them.

不要忘记导入一个包含您要渲染的所有自定义组件的模块！

Don't forget to import a module with all the custom components that you want to render!

export function createComponentFactory(compiler: Compiler, metadata: Component): Promise<ComponentFactory<any>> {
const cmpClass = class DynamicComponent {};
const decoratedCmp = Component(metadata)(cmpClass);

// Import the module with required components here
@NgModule({ imports: [CommonModule, RouterModule, SharedModule], declarations: [decoratedCmp] })
class DynamicHtmlModule { }

return compiler.compileModuleAndAllComponentsAsync(DynamicHtmlModule)
   .then((moduleWithComponentFactory: ModuleWithComponentFactories<any>) => {
    return moduleWithComponentFactory.componentFactories.find(x => x.componentType === decoratedCmp);
  });
}

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