使用ajaxfileupload.js进行文件上传,出现的问题以及解决办法

今天使用ajaxfieldupload.js上传文件出现两个问题:

1、handleerror is not a function

现在大家至少也在用jquery1.9以上的版本，ajaxfileupload的版本早就不更新了，它例子里使用的Jquery是1.2的，1.4.2之前的版本才有handlerError方法，之后就不存在了，，为了能够继续使用ajaxfileupload上传我们的附件，只好在ajaxfileupload.js文件中修改handlerError方法，如下：

    handleError: function( s, xhr, status, e )      {              // If a local callback was specified, fire it                      if ( s.error ) {                          s.error.call( s.context || s, xhr, status, e );                      }                            // Fire the global callback                      if ( s.global ) {                          (s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );                      }          }  

2、终于可以上传了，但是又出现了另一个问题，上传成功后，不走success方法，无法获取到data值，原因是根本没走这个方法,到ajaxfileupload.js文件中uploadHttpData函数内将data打印下发现结果如下：

data数据被加了pre标签了。。。

问题解决了。。。

最后贴一下ajaxfileupload.js全部代码

jQuery.extend({    createUploadIframe: function(id, uri)    {            //create frame            var frameId = 'jUploadFrame' + id;            if(window.ActiveXObject) {                //add by bdqn_hl 2014-3-2 start                if(jQuery.browser.version=="9.0"){                    io = document.createElement('iframe');                    io.id = frameId;                    io.name = frameId;                }else if(jQuery.browser.version=="6.0" ||jQuery.browser.version=="7.0" ||jQuery.browser.version=="8.0"){                    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;                    }                }                //add by bdqn_hl 2014-3-2 end                /*                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 form           var 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 timeout                s = 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 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                                         {                                            $(io).remove();                                            $(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 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';            }                       $(form).submit();        } catch(e)         {                       jQuery.handleError(s, xml, null, e);        }        if(window.attachEvent){            document.getElementById(frameId).attachEvent('onload', uploadCallback);        }        else{            document.getElementById(frameId).addEventListener('load', uploadCallback, false);        }               return {abort: function () {}};     },    handleError: function( s, xhr, status, e )      {        // If a local callback was specified, fire it                if ( s.error ) {                    s.error.call( s.context || s, xhr, status, e );                }                // Fire the global callback                if ( s.global ) {                    (s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );                }            },    uploadHttpData: function( r, type ) {        var data = !type;        data = type == "xml" || data ? r.responseXML : r.responseText;        // If the type is "script", eval it in global context        if ( type == "script" )            jQuery.globalEval( data );        // Get the JavaScript object, if JSON is used.        if ( type == "json" )           // eval( "data = " + data );            //data会被加<pre>导致AJAX不走success方法,改为如下形式            //eval("data = \" "+data+" \" ");            data = jQuery.parseJSON(jQuery(data).text());        // evaluate scripts within html        if ( type == "html" )            jQuery("<div>").html(data).evalScripts();            //alert($('param', data).each(function(){alert($(this).attr('value'));}));        return data;    }})