Angular 10 : Buffer is not defined

Question

我需要一些帮助，因为我不知道该怎么做。我必须在我的 Angular 项目中使用“amqplib”。首先，我尝试使用“amqp-ts”，但一旦打开浏览器，我就遇到错误:

经过几次尝试，我切换到了“amqplib”。但是，当我尝试调用库的函数时出现错误:

错误发生在一行:

if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
  module.exports = buffer
} else {
  // Copy properties from require('buffer')
  copyProps(buffer, exports)
  exports.Buffer = SafeBuffer
}

同样，Buffer 没有定义。

我已经尝试了这里提到的几种解决方案:Angular 6 Uncaught ReferenceError: Buffer is not defined我最终得到了: -安装的“缓冲”包

-在 polyfills.ts 中

declare var require: any;
declare var global: any;

(window as any).global = window;
// @ts-ignore
window.Buffer = window.Buffer || require('buffer').Buffer;
(window as any).process = {
  version: ''
};

-in index.html

<script>
    var global = global || window;
</script>

然而，他们都没有帮助，我仍然有这些错误:/

Answer 1

我正在尝试使用加密浏览器

我也最终使用 npm 安装了 Buffer 包

然后我收到一个错误:- Buffer is not a constructor 这是我所做的-

在 polyfills.ts 中 -

import * as Buffer from '../node_modules/buffer/index';
(window as any).global = window;
(window as any).process = {};
(window as any).process = window;
(window as any).process.browser = true;
(window as any).process.version = '';
(window as any).process.versions = { node: false };
(window as any).global.Buffer = Buffer.Buffer;