ajaxFileupload多文件上传
最近有个功能模块需要上传图片,为了和之前的伙伴们保持一致我也使用了ajaxFileupload,
但是源码只支持单文件上传,所以百般斟酌之下决定修改源码,废话不多说直接上代码
HTML上传代码段:
<div class="mainmenuone cf"> <ul class="cf"> <li><span><img /><input type="file" class="file" name="file"/></span></li> </ul> </div>
<ul class="cf">这里有个ul标签,说明这里添加的是多个,下面这个代码段就是循环加入图片
$(this).prev().attr("src", objUrl); $(this).parent().parent().append("<i class='cancel'> </i>"); $(".cancel").css({"display":"inline-block"}); $(".mainmenuone ul").append("<li><span><img /><input type='file' class='file' name='file' /></span></li>"); $(".mainmenuone li").css({"height":$(".mainmenuone li").width()+"px"});
AJAX的写法:
$.ajaxFileUpload({ url:'填自己的URL', secureuri: false, fileElementIds:'file', dataType: 'json', type: 'post', success: function (data, status){ }, error: function (data, status, e){ } });
更改后的ajaxFileupload.js
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,fileElementIds,data,fileElement) { //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>'); if(data) { for(var i in data) { jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form); } } var oldElement; if(fileElement == null){ $("."+fileElementIds).each(function(){ oldElement =$(this); var newElement = jQuery(oldElement).clone(); jQuery(oldElement).before(newElement); jQuery(oldElement).appendTo(form); oldElement=null; }); } else oldElement = fileElement; jQuery(form).css('position', 'absolute'); jQuery(form).css('top', '-1200px'); jQuery(form).css('left', '-1200px'); jQuery(form).appendTo('body'); return form; }, ajaxFileUpload: function(s) { // TODO 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.fileElementIds, (typeof(s.data)=='undefined'?false:s.data),s.fileElement); 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?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 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(){ try { jQuery('#' + frameId).remove(); jQuery(form).remove(); } catch(e){} }}; }, 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 ); data = jQuery.parseJSON(jQuery(data).text()); // evaluate scripts within html if ( type == "html" ) jQuery("<div>").html(data).evalScripts(); 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] ); } });