下载网络文件

download_simple_file.js

var http = require('http');
var url = require('url');
var debug = require('debug')('download');
var fs = require('fs');
var path = require('path');
debug('booting %s', "download.js")
var url_parms = url.parse("http://img2.chouti.com/CHOUTI_8CEB537A0B9E46BDA7B744ABED8C3812_W163H163=C200x200.jpg");

var options = {
    protocol: url_parms.protocol,
    hostname: url_parms.hostname,
    method: 'GET',
    path: url_parms.pathname,

}

var req = http.request(options, function(res) {
    if(res.statusCode) {
        var data = '';
        var stream = fs.createWriteStream(path.basename(url_parms.pathname), { flags: 'w+',});
        res.pipe(stream);
        res.on('end', function(){
            debug('-----Finished----');
        });
    }else {
        debug('Fail Http statusCode: %s', res.statusCode);
    }

});
req.end();