要使用ajax上载文件，请使用此上载器：http://valums.com/ajax-upload/
在node.js中，编写如下代码就可以处理正常的文件上传，而不需要Ajax：
console.log("request " + sys.inspect(req.headers));
req.on('data', function(chunk) {
console.log("Received body data:");
// console.log(chunk.toString());
});
var form = new formidable.IncomingForm();
form.parse(req, function(err,fields, files) {
console.log('in if condition'+sys.inspect({fields: fields, files: files}));
fs.writeFile("upload/"+files.upload.name, files.upload,'utf8', function (err) {
if (err) throw err;
console.log('It\'s saved!');
client.putFile("upload/"+files.upload.name, files.upload.name, function(err, res){
if (err) throw err;
if (200 == res.statusCode) {
console.log('saved to s3');
httpres.writeHead(200, {'content-type': 'text/plain'});
httpres.write('received 1upload:
');
httpres.end();
}
});
});
});
但为什么会提示出错？
request { host: 'myhost:8001',
'user-agent': 'Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1',
accept: 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'accept-language': 'en-us,en;q=0.5',
'accept-encoding': 'gzip, deflate',
'accept-charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
'keep-alive': '115',
connection: 'keep-alive',
origin: 'http://myhost',
'access-control-request-method': 'POST',
'access-control-request-headers': 'content-type' }
events.js:45
throw arguments[1]; // Unhandled 'error' event
^
Error: bad content-type header, no content-type
at IncomingForm._parseContentType (/usr/local/lib/node/.npm/formidable/1.0.0/package/lib/formidable/incoming_form.js:196:17)
at IncomingForm.writeHeaders (/usr/local/lib/node/.npm/formidable/1.0.0/package/lib/formidable/incoming_form.js:109:8)
at IncomingForm.parse (/usr/local/lib/node/.npm/formidable/1.0.0/package/lib/formidable/incoming_form.js:65:8)
at Server.<anonymous> (/home/myfolder/myfolder/newcontentserver.js:29:18)
at Server.emit (events.js:67:17)
at HTTPParser.onIncoming (http.js:1108:12)
at HTTPParser.onHeadersComplete (http.js:108:31)
at Socket.ondata (http.js:1007:22)
at Socket._onReadable (net.js:678:27)
at IOWatcher.onReadable [as callback] (net.js:177:10)
我认为问题是没有通过ajax在标头中设置内容类型。如何在此上传器中设置标头？或者如何通过传入数据在node.js服务器中创建文件？因为它使用的是xhr，所以我认为不能使用formidable.incomingform()。
