做法:将jQuery("<div>").html(data).evalScripts();改为jQuery("<div>").html(data).find('script').remove();
4.这问题首先要理解AjaxFileUploader的底层,通过iframe创建一个可上传文件的form,其中ajaxFileUpload的data都会被转成类型为hidden的input,也正是这种转换引起了问题.
处理:对于值含有双引号的字段,应使用textarea,而不是使用hidden的input.(只想出此方法,或许有人可以想出更完美的方法)
做法:
a:修改createUploadForm函数,增加第四个参数textareas,并在处理完data数据转换后加入如下代码:
if (textareas) {
for (var i in textareas) {
jQuery('<textarea name="' + i + '">'+textareas[i]+'</textarea>').appendTo(form);
}
}
b.调用createUploadForm的地方由jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data) == 'undefined' ? false : s.data))改为jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data) == 'undefined' ? false : s.data),(typeof(s.textareas) == 'undefined' ? false : s.textareas))
c.最后创建时,下面是一个例子:
var obj = {
"id": 456,
"password": "13131"
};
var textareas={
"content": $("#content").val()
};
$.ajax()
$.ajaxFileUpload({
url:"user/save",
type: "POST",
secureuri: false,
fileElementId: 'bgFileToUpload',
data: obj,
textareas:textareas,
dataType: "json",
success: function (data) {
console.log(data);
}
});
如果将上面的data不用hidden的input,都统一使用textarea,那么就不必要加入第四个参数textareas,外部创建请求调用时也方便.
5.想处理多个上传文件.就要修改源码对fileElementId的处理就可以了.
处理与做法:将上传文件的部分改成for循环.
if(typeof(fileElementId)=="string"){ fileElementId=[fileElementId]; } for(var i in fileElementId) { var oldElement = jQuery('#' + fileElementId[i]); var newElement = jQuery(oldElement).clone(); jQuery(oldElement).attr('id', fileId); jQuery(oldElement).before(newElement); jQuery(oldElement).appendTo(form); }
最改后的源码:
jQuery.extend({ createUploadIframe: function (id, uri) { //create frame var frameId = 'jUploadFrame' + id; var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"'; if (window.ActiveXObject) { if (typeof uri == 'boolean') { iframeHtml += ' src="' + 'javascript:false' + '"'; } else if (typeof uri == 'string') { iframeHtml += ' src="' + uri + '"'; } } iframeHtml += ' />'; jQuery(iframeHtml).appendTo(document.body); return jQuery('#' + frameId).get(0); }, createUploadForm: function (id, fileElementId, data) { //Create form var formId = 'jUploadForm' + id; var fileId = 'jUploadFile' + id; var form = jQuery('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>'); //Handle files if(typeof(fileElementId)=="string"){ fileElementId=[fileElementId]; } for(var i in fileElementId) { var oldElement = jQuery('#' + fileElementId[i]); var newElement = jQuery(oldElement).clone(); jQuery(oldElement).attr('id', fileId); jQuery(oldElement).before(newElement); jQuery(oldElement).appendTo(form); } //Handle data if (data) { for (var i in data) { jQuery('<textarea name="' + i + '" style="display:none;">'+data[i]+'</textarea>').appendTo(form); } } //Set attributes jQuery(form).css('position', 'absolute'); jQuery(form).css('top', '-1200px'); jQuery(form).css('left', '-1200px'); jQuery(form).appendTo('body'); return form; }, ajaxFileUpload: function (s) { // introduce global settings, allowing the client to modify them for all requests, not only timeout s = jQuery.extend({}, jQuery.ajaxSettings, s); var id = new Date().getTime(); var form = jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data) == 'undefined' ? false : s.data)); var io = jQuery.createUploadIframe(id, s.secureuri); var frameId = 'jUploadFrame' + id; var formId = 'jUploadForm' + id; // Watch for a new set of requests if (s.global && !jQuery.active++) { jQuery.event.trigger("ajaxStart"); } var requestDone = false; // Create the request object var xml = {}; if (s.global) jQuery.event.trigger("ajaxSend", [xml, s]); // Wait for a response to come back var uploadCallback = function (isTimeout) { var io = document.getElementById(frameId); try { if (io.contentWindow) { xml.responseText = io.contentWindow.document.body ? jQuery('<div>').html(io.contentWindow.document.body.innerHTML).text(): null; xml.responseXML = io.contentWindow.document.XMLDocument ? io.contentWindow.document.XMLDocument : io.contentWindow.document; } else if (io.contentDocument) { xml.responseText = io.contentWindow.document.body ? jQuery('<div>').html(io.contentWindow.document.body.innerHTML).text(): 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 notmodified if (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 data if (s.success) s.success(data, status); // Fire the global callback if (s.global) jQuery.event.trigger("ajaxSuccess", [xml, s]); } else jQuery.handleError(s, xml, status); } catch (e) { status = "error"; jQuery.handleError(s, xml, status, e); } // The request was completed if (s.global) jQuery.event.trigger("ajaxComplete", [xml, s]); // Handle the global AJAX counter if (s.global && !--jQuery.active) jQuery.event.trigger("ajaxStop"); // Process result if (s.complete) s.complete(xml, status); jQuery(io).unbind(); setTimeout(function () { try { jQuery(io).remove(); jQuery(form).remove(); } catch (e) { jQuery.handleError(s, xml, null, e); } }, 100); xml = null; } }; // Timeout checker if (s.timeout > 0) { setTimeout(function () { // Check to see if the request is still happening if (!requestDone) uploadCallback("timeout"); }, s.timeout); } try { var form = jQuery('#' + formId); jQuery(form).attr('action', s.url); jQuery(form).attr('method', 'POST'); jQuery(form).attr('target', frameId); if (form.encoding) { jQuery(form).attr('encoding', 'multipart/form-data'); } else { jQuery(form).attr('enctype', 'multipart/form-data'); } jQuery(form).submit(); } catch (e) { jQuery.handleError(s, xml, null, e); } jQuery('#' + frameId).load(uploadCallback); 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 context if (type == "script") jQuery.globalEval(data); // Get the JavaScript object, if JSON is used. if (type == "json") eval("data = " + data); // evaluate scripts within html if (type == "html") jQuery("<div>").html(data).find('script').remove(); return data; }, handleError: function( s, xml, status, e ) { // If a local callback was specified, fire it if ( s.error ) s.error( xml, status, e ); // Fire the global callback if ( s.global ) jQuery.event.trigger( "ajaxError", [xml, s, e] ); } });
源码:http://download.csdn.net/detail/xiejx618/8666001