Angular：将Blob转换为pdf

您无法在pdf查看器中将blob文件作为src传递，您必须将其转换为safeUrl才能进行预览。希望这会有所帮助。

import { DomSanitizer, SafeResourceUrl } from '@angular/platform-browser'; // importconstructor(private sanitizer: DomSanitizer) // include in constructor if (this.retrieveResonse.fileType == "pdf") {          var blob = new Blob([this._base64ToArrayBuffer(this.base64Data)], {        type: "application/doc"      });      const url = URL.createObjectURL(blob);      this.retrievedFile = window.open(url);

base64ToArrayBuffer方法：

_base64ToArrayBuffer(base64) {    const binary_string = window.atob(this.base64Data);    const len = binary_string.length;    const bytes = new Uint8Array(len);    for (let i = 0; i < len; i++) {      bytes[i] = binary_string.charCodeAt(i);    }    return bytes.buffer;  }