使用node.js将文件从网址下载到服务器

Question

我需要将文件从任何网址下载到运行该应用程序的服务器。我在Node.js中使用了以下代码。它在localhost的情况下工作。但不是在服务器的情况下。

var express = require('express'); 
var app  = express(); 
var http = require('http'); 
var https = require('https'); 
var request = require('request'); 
var fs  = require('fs'); 
var path = require('path'); 

app.get('/', function(request, response){ 
    response.send('connection established...!'); 
}); 

app.get('/download', function(request, response){ 
    var file  = "https://c1.staticflickr.com/6/5219/5450451580_7f066f7868_b.jpg"; 

    var filename = path.basename(file); 
    var ssl  = file.split(':')[0]; 
    var dest  = __dirname +'downloads/'+ filename; 
    var stream = fs.createWriteStream(dest); 

    if (ssl == 'https') { 
     https.get(file, function(resp) { 
      resp.pipe(stream); 
      response.send('file saved successfully.*'); 
     }).on('error', function(e) { 
      response.send("error connecting" + e.message); 
     }); 
    } else { 
     http.get(file, function(resp) { 
      resp.pipe(stream); 
      response.send('file saved successfully.*'); 
     }).on('error', function(e) { 
      response.send("error connecting" + e.message); 
     }); 
    } 
}); 
app.listen(process.env.PORT || 3000); 

Answer 1

你有写权限的服务器（假设你的地方是MAC/Windows和服务器是Linux盒）？如果没有分配权限