ajaxFileUpload使用及注意点

html：

<div class="page-content"><div class="page-header"><h1>订奶管理<small><i class="icon-double-angle-right"></i>导入订奶</small></h1></div><!-- /.page-header --><script type="text/javascript" src="/js/ajaxfileupload.js"></script><div class="alert alert-danger" role="alert"><span class="red">为保证<span class="blue">顺利</span>导入数据，请使用<span class="blue">word2003</span>标准格式</span><br><span class="red">文件大小不能超过<span class="blue">1M</span></span><br><span class="red">内容格式请<span class="blue">严格</span>遵守 模板格式。</span><br><span class="red">正式内容不能包含非法字符、函数、注释、颜色等</span><br><span class="red">如导入失败，请仔细检查以上几条..</span></div><div class="col-sm-12"><form action="/wxbackend/milk/importExcel" method="post" enctype="multipart/form-data"><div class="widget-main" style="width:580px;margin:0;padding:0;"><input type="file" name="excelFile" id="excelFile" ></div><button type="button" id="submit" onclick="ajaxFileUpload()" class="btn btn-info"><i class="icon-ok bigger-110"></i>导入</button>      <a href="javascript: window.location.reload()" id="refersh" class="btn btn-inverse"><span class="glyphicon glyphicon-refresh"></span> 刷新页面</a>    <img id="loading" src="/images/loading.gif" style="display:none;"></form></div></div>

JS：

<script type="text/javascript">jQuery(function($) {$('#excelFile').ace_file_input({no_file:'请选择Excel文件..',btn_choose:'Choose',btn_change:'Change',droppable:false,onchange:null,thumbnail:false, //| true | large//whitelist:'jpg|jpeg',//blacklist:'exe|php|dll',//onchange:''//});});function ajaxFileUpload(){var excelFile = $('#excelFile').val();if(excelFile == '') {alert('请选择Excel文件..');return false;}if(excelFile.lastIndexOf('.') > 0) {var ext = excelFile.substr(excelFile.lastIndexOf('.')+1);if(!(ext == 'xls')){alert('请选择Excel类型文件..');return false}}/**$("#loading").ajaxStart(function(){$(this).show();}).ajaxComplete(function(){$(this).hide();});*/$("#loading").show();document.getElementById('submit').disabled = true;document.getElementById('refersh').disabled = true;$.ajaxFileUpload({url:'/wxbackend/milk/importExcel',secureuri:false,fileElementId:'excelFile',dataType: 'text',success: function (data){$("#loading").hide();if(data.substr(0,2) == '99') {var row = data.substring(3,data.length);data = '99';info = '文件导入错误，数据不完整或含有非法字符，请检查后再试，Excel第 '+row+' 行';}switch (data){case '0':alert('文件类型错误，请使用word2003兼容格式');break;case '-1':alert('网络错误，请在网络良好的情况下再试');break;case '99':alert(info);break;case '-2':alert('文件没有读取权限，请联系管理员');break;case '-3':alert('非法上传！！');break;case '-4':alert('文件内容格式不正确，请严格按照模板文件');break;case '-4':alert('文件大小不能超过1M');break;case '1':alert('导入成功，订奶用户下去查看');break;default :alert('导入失败，未知错误，请联系管理员');break;}if(data == '1')window.location.href="/wxbackend/milk/milkOrderList?is_import=1";else window.location.reload();},error: function (data, status, e){$("#loading").hide();document.getElementById('submit').disabled = false;document.getElementById('refersh').disabled = false;alert(e);window.location.reload();}})return false;}</script>

注意：

高版本的jquery 已没有 handleError 方法 所以在ajaxfileupload.js的uploadHttpData方法后面加上：

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

即可


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, fileElementId, data){//create formvar 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 = jQuery('#' + fileElementId);var newElement = jQuery(oldElement).clone();jQuery(oldElement).attr('id', fileId);jQuery(oldElement).before(newElement);jQuery(oldElement).appendTo(form);//set attributesjQuery(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.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?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 () {}};    },    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).evalScripts();        return data;    },    handleError: function( s, xhr, status, e ) {    // If a local callback was specified, fire it    if ( s.error ) {        s.error.call( s.context || window, xhr, status, e );    }    // Fire the global callback    if ( s.global ) {        (s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );    }}})