Angular 6 - browser-crypto.js:3 Uncaught ReferenceError: global is not defined [英] Angular 6 - browser-crypto.js:3 Uncaught ReferenceError: global is not defined

问题描述

我正在实现 socketjs.但是我遇到了以下错误.

I am implementing socketjs. however i have encountered below error.

下面是我正在使用的 socket 和 stomp 包.

Below are the socket and stomp packages which i am using.

import * as SockJS from 'sockjs-client';
import * as Stomp from 'stompjs/lib/stomp.js';

提前致谢.

这是我的角度代码-

import * as Socket from 'socket.io-client';
import * as Stomp from 'stompjs/lib/stomp.js';

initializeWebSocketConnection2(){

let ws = new Socket(this.serverUrl);

this.stompClient = Stomp.over(ws);
let that = this;
this.stompClient.connect({}, function(frame) {


   that.stompClient.subscribe("/test", function(message){ 
        if(message.body) {
          console.log(message.body);
         window.location.reload(); 
        }
 });


   that.stompClient.subscribe("/operation", function(message){ 
        if(message.body) {
          console.log(message.body);
          window.location.reload();

        }
 });

});

}

推荐答案

在你的 polyfills.ts 中添加这个

Add this in your polyfills.ts

(window as any).global = window

首先你需要输入安装socket-client

First you need to install socket-client with typing

npm install --save @types/socket.io

然后你可以像这样在你的组件或服务中导入 socket.io-client

Then you can import the socket.io-client in your component or service like this

import * as Socket from 'socket.io-client';

像这样改变你的代码

let ws = Socket(this.serverUrl);

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