使用 Angular 2 RC6 为组件提供 DomSanitizer 的正确方法

问题描述

我正在尝试使用 DomSanitizer 清理组件内的动态 URL，但我似乎无法弄清楚为此服务指定提供者的正确方法是什么.

I'm attempting to use DomSanitizer to sanitize a dynamic URL within a Component using I can't seem to figure out what the correct way to specify a Provider for this service is.

我正在使用 Angular 2.0.0-rc.6

这是我当前的组件:

@Component({
    templateUrl: './app.component.html',
    styleUrls: [ './app.component.css' ],
    providers: [ DomSanitizer ],
})
export class AppComponent implements OnInit
{
    public url: SafeResourceUrl;

    constructor(private sanitizer: DomSanitizer) {}

    ngOnInit() {
        let id = 'an-id-goes-here';
        let url = `https://www.youtube.com/embed/${id}`;

         this.videoUrl = this.sanitizer.bypassSecurityTrustResourceUrl(url);
    }

    ngOnDestroy() {}
}

这会导致运行时出现错误 this.sanitizer.bypassSecurityTrustResourceUrl is not a function.

This results in the error this.sanitizer.bypassSecurityTrustResourceUrl is not a function at runtime.

有人可以向我展示如何正确提供 DomSanitizer 提供程序的示例吗?谢谢！

Could someone show me an example of how to properly provide a Provider for DomSanitizer? Thanks!

推荐答案

你不再需要声明 providers: [ DomSanitizer ].
只需要import DomSanitizer 如下图,

import { DomSanitizer, SafeResourceUrl, SafeUrl} from '@angular/platform-browser';

在组件中通过构造函数注入它，如下所示，

in component inject it through a constructor as below,

constructor(private sanitizer: DomSanitizer) {}

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