XMLHttpRequest 模块未定义/未找到

问题描述

这是我的代码:

var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
var xhr = new XMLHttpRequest();
xhr.open("GET", "//URL")
xhr.setRequestHeader("Content-Type: application/json", "Authorization: Basic //AuthKey");
xhr.send();

我收到错误:

Cannot find module 'xmlhttprequest'

当我删除第一行时，我得到:

When I remove the first line, I am getting:

XMLHttpRequest is not defined

我到处搜索，人们到处都提到了 Node.js 的问题，但我的 Node 安装是正确的，所以我不确定问题是什么.

I have searched all over and people have mentioned a problem with Node.js here and there but my installation of Node was correct so I'm not sure what the issue is.

推荐答案

XMLHttpRequest 是网络浏览器中的内置对象.

XMLHttpRequest is a built-in object in web browsers.

它不与 Node.js 一起分发.http 模块 是从 Node 发出 HTTP 请求的内置工具.

It is not distributed with Node. The http module is the built-in tool for making HTTP requests from Node.

大多数从节点发出 HTTP 请求的人都使用具有更友好 API 的第三方库.两个流行的选择是 Axios(用于 Node.js 和浏览器)和 node-fetch (它实现了浏览器内置的 fetch API，是XMLhttpRequest 的现代替代品.

Most people making HTTP requests from node use a third party library with a friendlier API. Two popular choices are Axios (for use both in Node.js and browsers) and node-fetch (which implements the fetch API which is built into browsers and is a modern replacement for XMLhttpRequest.

如果你真的想在 Node.js 中使用 XHR，那么有几个第三方实现.xmlhttprequest (似乎没有维护)和 xhr2(今年有更新).

If you really want to use XHR in Node.js then there are a couple of third party implementations. xmlhttprequest (which seems to be unmaintained) and xhr2 (which has had an update this year).

1. 用 npm 安装，

1. Install it with npm,

 npm install xhr2

 var XMLHttpRequest = require('xhr2');
 var xhr = new XMLHttpRequest();

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