node.js - 我的 http 请求有什么问题

Question

我可以在我的浏览器中输入我的 url:192.168.1.132，我会得到正确的“hello world”响应，如果我 curl 192.168.1.132 也是一样

但是如果我运行这段代码

var http = require('http');

var options = {
  host: 'http://192.168.1.132',
  path: '/'
};

callback = function(response) {
  var str = '';

  //another chunk of data has been recieved, so append it to `str`
  response.on('data', function (chunk) {
    str += chunk;
  });

  //the whole response has been recieved, so we just print it out here
  response.on('end', function () {
  console.log(str);

我得到错误:

events.js:85
      throw er; // Unhandled 'error' event
            ^
Error: getaddrinfo ENOTFOUND http://192.168.1.132
    at errnoException (dns.js:44:10)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:94:26)

我做错了什么？

Answer 1

从您显示的代码中可以看出的唯一错误是在您的 options 对象的 host 属性中包含了协议(protocol)方案。那应该只是:

host: '192.168.1.132',

在该更改之后发生的任何进一步错误都在您未显示的代码中。这是基于您的代码的工作代码示例。

var http = require('http');

var options = {
  host: 'www.google.com',
  path: '/index.html'
};

callback = function(response) {
  var str = '';

  //another chunk of data has been recieved, so append it to `str`
  response.on('data', function (chunk) {
    str += chunk;
  });

  //the whole response has been recieved, so we just print it out here
  response.on('end', function () {
    console.log(str);
  });
};

var req = http.request(options, callback);

req.on('error', function (e) {
  console.log('problem with request: ' + e.message);
});

req.end();