1：接受文件

http://stackoverflow.com/questions/24610996/how-to-get-uploaded-file-in-node-js-express-app-using-angular-file-upload

可以用下列的第三方库

•busboy and connect-busboy

•multiparty and connect-multiparty

•formidable

•multer

2：保存文件

ps：nodejs get/request

灌水评论示例：

var http = require('http'); var querystring = require('querystring'); var postData = querystring.stringify({ content: '不错不错', cid: 348 }); var options = { hostname: 'www.imooc.com', port: 80, path: '/course/docomment', method: 'POST', headers:{ 'Accept':'application/json, text/javascript, */*; q=0.01', 'Accept-Encoding':'gzip, deflate', 'Accept-Language':'zh-CN,zh;q=0.8', 'Connection':'keep-alive', 'Content-Length':postData.length, 'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8', 'Cookie':'imooc_uuid=791e8f39-5d06-433a-831f-909fa85acdd3; imooc_isnew_ct=1452475309; IMCDNS=0; loginstate=1; apsid=A0NWQzM2RkMzM2NDk0NWFkOTc5NmQzYzBkNTUyMGMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMjc0Njc4MAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADBlY2Y5ZjJiZGNjZTFlZTJmMjkwZTE2Y2M4YWE4MWE49QOTVvUDk1Y%3DZD; PHPSESSID=1uunfnq1rdhup7tudcre36l8h1; jwplayer.qualityLabel=高清; cvde=569454113f947-13; Hm_lvt_f0cfcccd7b1393990c78efdeebff3968=1452475311,1452561427; Hm_lpvt_f0cfcccd7b1393990c78efdeebff3968=1452579983; imooc_isnew=2', 'Host':'www.imooc.com', 'Origin':'http://www.imooc.com', 'Referer':'http://www.imooc.com/comment/348', 'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.99 Safari/537.36', 'X-Requested-With':'XMLHttpRequest' } } var req = http.request(options, function(res) { console.log('Status: ' + res.statusCode); console.log('headers: ' + JSON.stringify(res.headers)); res.on('data', function(chunk) { console.log(Buffer.isBuffer(chunk)); console.log(typeof chunk); }); res.on('end', function() { console.log('评论完毕'); }); }); req.on('error', function(e) { console.log('Error: ' + e.message); }); req.write(postData); req.end();

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