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我在从节点 js 的 http.request 获取数据时遇到问题我在控制台中获取了数据但是当我试图让它失去功能时它没有进入变量这里是当我尝试发送端口转发的请求时的代码我在 x 回调函数中得到响应，但没有找到数据，所以任何知道的人请告诉我。

var fs = require('fs');
var http = require('http');
var url = require('url') ,
httpProxy = require('http-proxy');
var express = require("express");


 //
 // Create your proxy server
//
httpProxy.createServer(9000, 'localhost').listen(8000);

 //
// Create your target server
//
 http.createServer(function (req, res) {

res.writeHead(200, { 'Content-Type': 'text/plain' });

//res.write('request successfully proxied!' + '\n' + JSON.stringify(req.headers, true,      2));

 var queryObject = url.parse(req.url,true).query;


 res.writeHead(200);
 if(queryObject['id']!==undefined){
  console.log(queryObject);
  //alert(queryObject['id']);
 if(queryObject['id'].match('100'))
{
  res.write(queryObject['id']+" forwarding to another port 8000");

  //sending request
  var options = {
            host: '192.168.10.33',
            port: 8080,
            path: '/demo.js?id='+queryObject['id'],
            method: 'GET',
            headers: {
                accept: 'text/plain'
            }
        };

        console.log("Start conecting ...");
        var x = http.request(options,function(res2){
            console.log("Connected.");
            res2.on('data',function(data){
  //*********
 //Here is the problem occur this data i m cloud not able to print 
 //********
                console.log("data-> "+data);

            });
        });

        x.end("\n ok");
  //end 

    }
   else
   {
  res.write("listening on current port");
  }
  }
   res.end("\n end of page ");//'\n\nFeel free to add query parameters to the end of the url');
 //res.end();
  }).listen(9000);
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1 回答 1

2

我相信响应数据是分块的，因此您需要继续加载数据并附加到缓冲区，然后将其记录到控制台，其中一个数据已完成 steraming。

例如

var http = require('http');

//The url we want is: 'www.random.org/integers/?num=1&min=1&max=10&col=1&base=10&format=plain&rnd=new'
var options = {
  host: 'www.random.org',
  path: '/integers/?num=1&min=1&max=10&col=1&base=10&format=plain&rnd=new'
};

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);
  });
}

http.request(options, callback).end();

来源：http : //docs.nodejitsu.com/articles/HTTP/clients/how-to-create-a-HTTP-request

于 2013-10-23T12:42:37.060 回答