我正在尝试使用NodeJs和Formidable制作图像/文件上传表单。我不是用快递。真是太强大了。但无论如何，我尝试了最常见的脚本与强大，没有一个工作。我的代码基本上与本教程中的相同：http://justinkjchang.wordpress.com/2013/11/08/image-uploader-using-node-js/有很多这些教程，我已经看到几乎完全相同有些书或视频中的东西，除了地雷外，它们似乎都有效。我已经安装了强大的，我有这个和Node的最新版本。我也在Mac上。当我尝试上传时，它将通过form.parse和所有内容，但是当它尝试写入文件时，它会抛出此错误：
/Users/USER/Documents/Node/requestHandlers.js:42
fs.rename(files.upload.path, "/tmp/test.png", function (error) {
^
TypeError: Cannot read property 'path' of undefined
我是Nodejs的新手，所以任何一种帮助都会很好。我也试过做file.write，它仍然会抛出相同的错误。任何帮助将很乐意（：
更新代码：
var exec = require("child_process").exec;
var qs = require("querystring"),
fs = require("fs"),
formidable = require("formidable"),
url = require( "url" );
function start(response, request) {
/*
var fileName = "start.html"
var localPath = __dirname;
var mimeType = "text/html";
var name = localPath + "/" + fileName;
getFile(name, response, mimeType);
console.log("Request handler 'start' was called.");
console.log("Serving File: " + name);
*/
var body = '<html>'+
'<head>'+
'<meta http-equiv="Content-Type" '+
'content="text/html; charset=UTF-8" />'+
'</head>'+
'<body>'+
'<form action="/upload" enctype="multipart/form-data" '+
'method="post">'+
'<input type="file" name="upload" multiple="multiple">'+
'<input type="submit" value="Upload file" />'+
'</form>'+
'</body>'+
'</html>';
console.log( "Request for 'start' is called." );
response.writeHead( 200, { "Content-Type" : "text/html" } );
response.end( body );
}
function upload(response, request) {
console.log("Request handler 'upload' was called.");
console.log( "Preparing upload" );
var form = new formidable.IncomingForm();
form.parse(request, function(error, fields, files){
if(error){
console.log(error);
console.log("Dun Goofed");
}
console.log("parsing done");
fs.rename(files.upload.path, "/tmp/test.png", function (error) {
if (error) {
fs.unlink("/tmp/test.png");
fs.rename(files.upload.path, "/tmp/test.png");
}
});
/* fs.rename(files.upload.path, "/tmp/test.png", function(err){
if(err){
fs.unlink("/tmp/test.png");
fs.rename(files.upload.path, "/tmp/test.png");
}
}); */
response.writeHead(200, {"Content-Type": "text/plain"});
response.write("Received image: <br/>");
response.write("<img src='./show' />");
response.end();
});
}
exports.start = start;
exports.upload = upload;
//exports.show = show;
我省略了一些部分，因为它们与文件上传无关，请原谅评论，只是旧代码。我也没有/ show函数，因为我暂时删除了它。以下是我在控制台中遇到的错误。其中一个错误是因为上传取消了。在我输入要上传的文件后，浏览器只是在那里停留了一段时间并等待服务器的请求，并且在控制台中，它只是在form.parse之前停止，然后在那里做任何事情大约一分钟，然后它推出了所有的错误。
Web Server started on 127.0.0.1:8888
Request for / received.
About to route a request for /
Served a request for /
Request for 'start' is called.
Request for /upload received.
Received POST data chunk
About to route a request for /upload
Served a request for /upload
Request handler 'upload' was called.
Preparing upload
成功执行，直到这里。然后浏览器等待一段时间，然后它弹出没有收到数据，或者网页不可用，然后这些错误出现在控制台中。
{}
[Error: Request aborted]
Dun Goofed
parsing done
/Users/USER/Documents/Node/requestHandlers.js:50
fs.rename(files.upload.path, "/tmp/test.png", function (error) {
^
TypeError: Cannot read property 'path' of undefined
at /Users/USER/Documents/Node/requestHandlers.js:50:31
at IncomingForm.<anonymous> (/Users/USER/node_modules/formidable/lib/incoming_form.js:89:9)
at IncomingForm.EventEmitter.emit (events.js:95:17)
at IncomingForm._error (/Users/USER/node_modules/formidable/lib/incoming_form.js:272:8)
at IncomingMessage.<anonymous> (/Users/USER/node_modules/formidable/lib/incoming_form.js:107:12)
at IncomingMessage.EventEmitter.emit (events.js:92:17)
at abortIncoming (http.js:1911:11)
at Socket.serverSocketCloseListener (http.js:1923:5)
at Socket.EventEmitter.emit (events.js:117:20)
at TCP.close (net.js:465:12)
我也有同样的问题。
删除server.js中的代码request.setEncoding("utf8");
像这样：
function start(route, handler) {
http.createServer(function(request, response) {
var postData = "";
var pathname = url.parse(request.url).pathname;
route(handler, pathname, response, request);
}).listen(8889);
}