一、ajaxfileupload在新版的jQuery中会报jQuery.handleError is not a function
解决办法：
在Ajaxfileupload.js中追加方法：
handleError: function (s, xhr, status, e) {if (s.error) {s.error.call(s.context || s, xhr, status, e);}if (s.global) {(s.context ? jQuery(s.context) : jQuery.event).trigger("ajaxError", [xhr, s, e]);}}
二、ajaxFileUpload上传文件返回json无法解析
解决办法：
在uploadHttpData中修改type == "json"
if ( type == "json" ){data = jQuery.parseJSON(jQuery(data).text());}
ajaxFileUpload 全部代码为：
jQuery.extend({createUploadIframe: function(id, uri){//create framevar frameId = 'jUploadFrame' + id;if(window.ActiveXObject) {if($.support.leadingWhitespace){var io = document.createElement('iframe');io.id = frameId;io.name = frameId;}else{var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');if(typeof uri== 'boolean'){io.src = 'javascript:false';}else if(typeof uri== 'string'){io.src = uri;}}}else {var io = document.createElement('iframe');io.id = frameId;io.name = frameId;}io.style.position = 'absolute';io.style.top = '-1000px';io.style.left = '-1000px';document.body.appendChild(io);return io},createUploadForm: function(id, fileElementId){//create formvar formId = 'jUploadForm' + id;var fileId = 'jUploadFile' + id;var form = $('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');var oldElement = $('#' + fileElementId);var newElement = $(oldElement).clone();$(oldElement).attr('id', fileId);$(oldElement).before(newElement);$(oldElement).appendTo(form);//set attributes$(form).css('position', 'absolute');$(form).css('top', '-1200px');$(form).css('left', '-1200px');$(form).appendTo('body');return form;},ajaxFileUpload: function(s) {// TODO introduce global settings, allowing the client to modify them for all requests, not only timeouts = jQuery.extend({}, jQuery.ajaxSettings, s);var id = s.fileElementId;var form = jQuery.createUploadForm(id, s.fileElementId);var io = jQuery.createUploadIframe(id, s.secureuri);var frameId = 'jUploadFrame' + id;var formId = 'jUploadForm' + id;// Watch for a new set of requestsif ( s.global && ! jQuery.active++ ){jQuery.event.trigger( "ajaxStart" );}var requestDone = false;// Create the request objectvar xml = {}if ( s.global )jQuery.event.trigger("ajaxSend", [xml, s]);// Wait for a response to come backvar uploadCallback = function(isTimeout){var io = document.getElementById(frameId);try{if(io.contentWindow){xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;}else if(io.contentDocument){xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;}}catch(e){jQuery.handleError(s, xml, null, e);}if ( xml || isTimeout == "timeout"){requestDone = true;var status;try {status = isTimeout != "timeout" ? "success" : "error";// Make sure that the request was successful or notmodifiedif ( status != "error" ){// process the data (runs the xml through httpData regardless of callback)var data = jQuery.uploadHttpData( xml, s.dataType );// If a local callback was specified, fire it and pass it the dataif ( s.success )s.success( data, status );// Fire the global callbackif( s.global )jQuery.event.trigger( "ajaxSuccess", [xml, s] );} elsejQuery.handleError(s, xml, status);} catch(e){status = "error";jQuery.handleError(s, xml, status, e);}// The request was completedif( s.global )jQuery.event.trigger( "ajaxComplete", [xml, s] );// Handle the global AJAX counterif ( s.global && ! --jQuery.active )jQuery.event.trigger( "ajaxStop" );// Process resultif ( plete )plete(xml, status);jQuery(io).unbind()setTimeout(function(){try{$(io).remove();$(form).remove();} catch(e){jQuery.handleError(s, xml, null, e);}}, 100)xml = null}}// Timeout checkerif ( s.timeout > 0 ){setTimeout(function(){// Check to see if the request is still happeningif( !requestDone ) uploadCallback( "timeout" );}, s.timeout);}try{// var io = $('#' + frameId);var form = $('#' + formId);$(form).attr('action', s.url);$(form).attr('method', 'POST');$(form).attr('target', frameId);if(form.encoding){form.encoding = 'multipart/form-data';}else{form.enctype = 'multipart/form-data';}$(form).submit();} catch(e){jQuery.handleError(s, xml, null, e);}if(window.attachEvent){document.getElementById(frameId).attachEvent('onload', uploadCallback);}else{document.getElementById(frameId).addEventListener('load', uploadCallback, false);}return {abort: function () {}};},uploadHttpData: function( r, type ) {var data = !type;data = type == "xml" || data ? r.responseXML : r.responseText;// If the type is "script", eval it in global contextif ( type == "script" )jQuery.globalEval( data );// Get the JavaScript object, if JSON is used.if ( type == "json" ){data = jQuery.parseJSON(jQuery(data).text());// eval( "data = " + data );}// evaluate scripts within htmlif ( type == "html" )jQuery("<div>").html(data).evalScripts();//alert($('param', data).each(function(){alert($(this).attr('value'));}));return data;},handleError: function (s, xhr, status, e) {if (s.error) {s.error.call(s.context || s, xhr, status, e);}if (s.global) {(s.context ? jQuery(s.context) : jQuery.event).trigger("ajaxError", [xhr, s, e]);}},})
三、在上传文件时，不能传参问题
1、修改createUploadForm（1）修改createUploadForm: function(id, fileElementId, data)（2）在$(oldElement).appendTo(form);下添加代码if (data) {for (var i in data) {$('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form);}}2、修改ajaxFileUpload（1）var form = jQuery.createUploadForm(id, s.fileElementId, s.data);
