Question

我似乎无法获得一个简单的http请求来使用node.js.以下代码只是挂起而不记录任何内容或打印任何错误。

http = require 'http'

callback = (response) ->
  console.log 'callback'
  str = ''

  # another chunk of data has been recieved, so append it to `str`
  response.on 'data', (chunk) ->
    console.log 'data'
    str += chunk

  # the whole response has been recieved, so we just print it out here
  response.on 'end', ->
    console.log str

http.get 'http://hacker-news.firebaseio.com/v0/topstories.json', callback

生成的javascript：

// Generated by CoffeeScript 1.10.0
(function() {
  var callback, http;

  http = require('http');

  callback = function(response) {
    var str;
    console.log('callback');
    str = '';
    response.on('data', function(chunk) {
      console.log('data');
      return str += chunk;
    });
    return response.on('end', function() {
      return console.log(str);
    });
  };

  http.get('http://hacker-news.firebaseio.com/v0/topstories.json', callback);

}).call(this);

Answer 1

您现有的代码似乎可以与其他网址一起使用。特别是该URL似乎不适用于HTTP，至少在我使用curl时它会挂起。在浏览器中加载它确实会返回307重定向到HTTPS版本，因此我不确定为什么它没有响应curl或您的代码。

无论如何，您可能仍想使用HTTPS URL，因此只需更改代码即可：

https = require 'https'

callback = (response) ->
  console.log 'callback'
  str = ''

  # another chunk of data has been recieved, so append it to `str`
  response.on 'data', (chunk) ->
    console.log 'data'
    str += chunk

  # the whole response has been recieved, so we just print it out here
  response.on 'end', ->
    console.log str

https.get 'https://hacker-news.firebaseio.com/v0/topstories.json', callback

Answer 2

尝试使用支持http和https的lib，例如'request'或'request-promise'。

以下示例正常，

var request = require('request');
request('https://www.xxxxx.com', function (error, response, body) {
  if (!error && response.statusCode == 200) {
    console.log(body);
  }
})

更多信息：https://www.npmjs.com/package/request

使用node.js http模块

2 个答案: