mysql.query("SELECT * FROM myTable",function(res){callback(res);
});

var uploaderFactory = {send: function (url, data, files, callback) {var insUploader = new uploader(url, data, files);insUploader.callback = function (status, resData) {if (typeof callback === 'function') {callback(status, resData);}}insUploader.send();return insUploader;}};

(function (upladerQueue) {var Status = {Ready: 0,Uploading: 1,Complete: 2}var _self = null;var instance = null;function Queue() {this._datas = [];this._curSize = 0;//当前长度_self = this;}Queue.prototype = {add: function (data) {var key = new Date().getTime();this._datas.push({key: key, data: data, status: Status.Ready});this._curSize = this._datas.length;return key;},remove: function (key) {var index = this._getIndexByKey(key);this._datas.splice(index, 1);this._curSize = this._datas.length;},get: function (key) {var index = this._getIndexByKey(key);return index != -1 ? this._datas[index].data : null;},clear: function () {this._datas = [];this._curSize = this._datas.length;},size: function () {return this._curSize;},setItemStatus: function (key, status) {var index = this._getIndexByKey(key);if (index != -1) {this._datas[index].status = status;}},nextReadyingIndex: function () {for (var i = 0; i < this._datas.length; i++) {if (this._datas[i].status == Status.Ready) {return i;}}return -1;},getDataByIndex: function (index) {if (index < 0) {return null;}return this._datas[index];},_getIndexByKey: function (key) {for (var i = 0; i < this._datas.length; i++) {if (this._datas[i].key == key) {return i;}}return -1;}};function getInstace() {if (instance === null) {instance = new Queue();return instance;} else {return instance;}}upladerQueue.Queue = getInstace();upladerQueue.UploadStatus = Status;
})(window.uploaderQueue);

(function (upladerQueue) {var instance = null;var _self;function uploadEngine() {this._url = null;this._curUploadingKey = -1;//标志this.uploadStatusChanged = {};this.uploadItemProgress={};_self = this;}uploadEngine.prototype = {setUrl: function (url) {this._url = url;},run: function () {if (this._curUploadingKey === -1 && this._url) {this._startUpload();}},_startUpload: function () {_self = this;var index = upladerQueue.Queue.nextReadyingIndex();if (index != -1) {this._uploadItem(index);} else {this._curUploadingKey = -1;return null;}},_uploadItem: function (index) {var data = upladerQueue.Queue.getDataByIndex(index).data;_self = this;this._readyUploadItem(index);var upload = uploaderFactory.send(this._url, null, data.files, function (status, data) {_self._completedUploadItem.call(_self, status, data);});this._uploadItemProgress(upload);},_uploadItemProgress: function (upload) {upload.onprogress = function (e) {_self.uploadItemProgress(_self._curUploadingKey,e);}},_readyUploadItem: function (index) {this._curUploadingKey = upladerQueue.Queue.getDataByIndex(index).key;if (typeof this.uploadStatusChanged === 'function') {this.uploadStatusChanged(this._curUploadingKey, upladerQueue.UploadStatus.Uploading);}upladerQueue.Queue.setItemStatus(this._curUploadingKey, upladerQueue.UploadStatus.Uploading);},_completedUploadItem: function (status, data) {if (typeof this.uploadStatusChanged === 'function') {this.uploadStatusChanged(this._curUploadingKey, upladerQueue.UploadStatus.Complete);}upladerQueue.Queue.setItemStatus(this._curUploadingKey, upladerQueue.UploadStatus.Complete);this._startUpload();}};function getInstace() {if (instance === null) {instance = new uploadEngine();}return instance;}upladerQueue.Engine = getInstace();
})(window.uploaderQueue);

(function (app) {var _self;function uploaderMain(id) {this._id = id;this._area = null;this.uploaders = [];this._URL = 'file/uploader';}uploaderMain.prototype = {init: function () {_self = this;this._initArea();this._initQueueEng();},_initQueueEng: function () {uploaderQueue.Engine.setUrl(this._URL);uploaderQueue.Engine.uploadStatusChanged = function (key, status) {if (status === uploaderQueue.UploadStatus.Uploading) {_self._area.hideItemCancel(key);} else if (status === uploaderQueue.UploadStatus.Complete) {_self._area.completeItem(key);_self._area.showItemCancel(key);}}uploaderQueue.Engine.uploadItemProgress = function (key, e) {var progress = e.position / e.total;_self._area.changeItemProgress(key, Math.round(progress * 100));}},_initArea: function () {this._area = new app.area(this._id);this._area.init();this._area.drop = function (e) {var key = uploaderQueue.Queue.add({files: e.dataTransfer.files});uploaderQueue.Engine.run();return key;}this._area.cancelItem = function (key) {uploaderQueue.Queue.remove(key);}}};app.main = uploaderMain;
})(window.uploaderApp);

<script type="text/javascript">var main=new uploaderApp.main('container');main.init();
</script>

app.use(express.bodyParser({uploadDir:__dirname+'/public/temp'
}));

function uploader(req, res) {if (req.files != 'undifined') {console.dir(req.files);utils.mkDir().then(function (path) {uploadFile(req, res, path, 0);});}
}function uploadFile(req, res, path, index) {var tempPath = req.files.file[index].path;var name = req.files.file[index].name;if (tempPath) {var rename = promise.denodeify(fs.rename);rename(tempPath, path + name).then(function () {var unlink = promise.denodeify(fs.unlink);unlink(tempPath);}).then(function () {if (index == req.files.file.length - 1) {var res = {code: 1,des: '上传成功'};res.send(res);} else {uploadFile(req, res, path, index + 1);}});}
}