SafeValue必须使用[property] = binding,但它是

Question

大家好,这让我疯了.我尝试了我能在网上找到的所有修复程序,似乎没有任何工作.

我从DB加载base64图像信息,返回base64编码的图像,如下所示:

/9j/4AAQSkZJRgABAQEBLAEsAAD/4UHuRXhpZgAATU0AKgAAAAgABgEaAAUAAAABAAAAVgEbAAUAAAABAAAAXgEoAAMAAAABAAIAAAITAAMAAAABAAEAAIdpAAQAAAABAAAIcuocAAcAAAgMAAAAZgAAEOQAAAEsAAAAAQAAASwAAAABHOoAAAAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

然后在我的TS文件中,我有以下功能:

photo_url(data:string){

     this.user_photo = this.domSanitizer.bypassSecurityTrustResourceUrl('data:image/jpeg;base64,' + data).toString();

}

我的HTML文件如下所示:

<img [src]="user_photo ? user_photo : 'assets/img/default.png'">

但是我收到以下错误,图像没有显示:

WARNING: sanitizing unsafe URL value SafeValue must use [property]=binding: data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEBLAEsAAD/4UHuRXhpZgAATU0AKgAAAAgABgEaAAUAAAABAAAAVgEbAAUAAAABAAAAXgEoAAMAAAABAAIAAAITAAMAAAABAAEAAIdpAAQAAAABAAAIcuocAAcAAAgMAAAAZgAAEOQAAAEsAAAAAQAAASwAAAABHOoAAAAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

错误说sanitizer应该使用属性绑定,它是,但它仍然显示错误和图像不显示.

我在这里错过了什么吗？

谢谢!

Answer 1

使用时，.toString您将设置user_photo为字符串而不是SafeResourceUrl根据需要。

实际上，只需删除.toString()将使此工作正常。否则，您实际上只是在撤消DomSanitizer的工作。

user_photo: SafeResourceUrl;
photo_url(data: string){
     this.user_photo = this.domSanitizer.bypassSecurityTrustResourceUrl(
       'data:image/jpeg;base64,' + data);
}