关于ajaxFileUpload上传文件

1.描述

最近做一个项目用到了ajaxFileUpload这个插件,中间出现好多波折。还好都解决了 现上传例子和用到的插件（插件内容本人已修改完成,直接可以复制粘贴使用）

2.前台代码

前端代码：

 $.ajaxFileUpload({           
                url : "${cxt}/uploadadd",//要访问的后台地址
                type : "post",//使用post方法访问后台
                dataType : "json",
                fileElementId : "attachs",
                 data: {"pathName":path,"acti_id":actid,"parID":parID},
                 secureuri : false,
                success : function(data){//data为返回的数据，在这里做数据绑定     
                    if(data!=null&&data!=""){
                        //alert(data.mess);
                          if(data.message!=null&&data.message!=""){
                             window.location.href = "${cxt}/guanli?activityId="+actid+"&pid="+pid+"&productType="+productType;
                         }else{
                                layer.open({
                                    skin : 'zdrc-layer skin-2',
                                    title : '提示',
                                    area : ['500px', '255px'],
                                    content : data.mess,
                                    btn : ['确认'],
                                    yes : function () {
                                          window.location.href = "${cxt}/appraisal?acti_id="+$("#acti_id").val()+"&parID="+5+"&pid="+pid+"&productType="+productType;
                                    },
                                });
                         } 
                    }else{
                      alert("请选择文件");
                    }
                    },
                  error: function (e)//服务器响应失败处理函数
                    {
                       // alert("aa");
                        alert(e.responseText);
                    } 
                });

   <div class="section-main section-2 no-file">
                               <div class="content">
                                   <i class="icon"></i>
                                   <div class="input-text ishadow">
                                       <label>请选择需要导入的文件</label>
                                       <div class="inner">
                                           <input type="text" name="path" value="" placeholder="未选择任何文件" class="itext" id="path">
                                           <div class="input-file">
                                                                                                                                  选择文件
                                               <input type="file" name="attachs" value="" placeholder="" class="upFile"  id="attachs">
                                           </div>
                                       </div>
                                       <div class="input-msg"></div>
                                   </div>

                               </div>
                               <div class="btn-box">
                                   <a href="javascript:uploadAjax();" class="btn btn-import" id="import">导 入</a>
                               </div>

 

3后台代码

这里只展示方法头的处理

    @RequestMapping(value = "/uploadadd", produces = { "application/json;charset=UTF-8" })
    @SystemControllerLog(description = "进入上传文件方法")
    @ResponseBody
    public String uploadadd(
            @RequestParam(value = "attachs", required = false) MultipartFile[] attachs,
            HttpServletRequest request, HttpServletResponse response)
            throws IOException {

4ajaxfileupload.js 代码

jQuery.extend({


    createUploadIframe: function(id, uri)
    {
        //create frame
        var frameId = 'jUploadFrame' + id;

        if(window.ActiveXObject) {
            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;
    },
    addOtherRequestsToForm: function(form,data)
    {
        // add extra parameter
        var originalElement = $('<input type="hidden" name="" value="">');
        for (var key in data) {
            name = key;
            value = data[key];
            var cloneElement = originalElement.clone();
            cloneElement.attr({'name':name,'value':value});
            $(cloneElement).appendTo(form);
        }
        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.fileElementId);
        if ( s.data ) form = jQuery.addOtherRequestsToForm(form,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?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 () {}};

    },

    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" )
        {
            // If you add mimetype in your response,
            // you have to delete the '<pre></pre>' tag.
            // The pre tag in Chrome has attribute, so have to use regex to remove
            var data = r.responseText;
            var rx = new RegExp("<pre.*?>(.*?)</pre>","i");
            var am = rx.exec(data);
            //this is the desired data extracted
            var data = (am) ? am[1] : "";    //the only submatch or empty
            eval( "data = " + data );
        }
        // evaluate scripts within html
        if ( type == "html" )
            jQuery("<div>").html(data).evalScripts();
        //alert($('param', data).each(function(){alert($(this).attr('value'));}));
        return data;    
    }
})

 

5说明

遇到这个问题 被网上各种解决方案弄的头都大了 但都眉头成功。现上传亲测过已成功的例子