双核浏览器下在chrome内核中使用uploadify总有302问题，也不知道如何修复，之所以喜欢360浏览器是因为帮客户控制渲染内核：
若页面需默认用极速核，增加标签：<meta name="renderer" content="webkit"> 若页面需默认用ie兼容内核，增加标签：<meta name="renderer" content="ie-comp"> 若页面需默认用ie标准内核，增加标签：<meta name="renderer" content="ie-stand">
要解决302问题也很简单，就是html5的文件上传，正好最近在ueditor里看到百度的webuploader，会自动选择flash html5，就是一个成熟的解决方案了。
先看前端，我们将最常用的操作封装为插件，asp.net中和MVC中最好使用相对于应用程序的绝对路径，自行定义全局applicationPath ：var applicationPath = "@(Href("~")=="/"?"":Href("~"))";
前端代码：
(function ($, applicationPath) {
var applicationPath = applicationPath === "" ? "" : applicationPath || "../..";
function initWebUpload(item, options) {
var defaults = {
hiddenInputId: "uploadifyHiddenInputId", // input hidden id
onAllComplete: function (event) { }, // 当所有file都上传后执行的回调函数
onComplete: function (event) { },// 每上传一个file的回调函数
innerOptions: {},
fileNumLimit: undefined,
fileSizeLimit: undefined,
fileSingleSizeLimit: undefined
};
var opts = $.extend({}, defaults, options);
var target = $(item);
var pickerid = guidGenerator().replace(/-/g, "");
var uploaderStrdiv = ‘<div class="webuploader">‘ +
‘<div id="thelist" class="uploader-list"></div>‘ +
‘<div class="btns">‘ +
‘<div id="‘ + pickerid + ‘">选择文件</div>‘ +
//‘<a id="ctlBtn" class="btn btn-default">开始上传</a>‘ +
‘</div>‘ +
‘</div>‘;
target.append(uploaderStrdiv);
var $list = target.find(‘#thelist‘),
$btn = target.find(‘#ctlBtn‘),
state = ‘pending‘,
uploader;
var jsonData = {
fileList: []
};
var webuploaderoptions = $.extend({
// swf文件路径
swf: applicationPath + ‘/Scripts/lib/webuploader/Uploader.swf‘,
// 文件接收服务端。
server: applicationPath + ‘/MvcPages/WebUploader/Process‘,
// 选择文件的按钮。可选。
// 内部根据当前运行是创建，可能是input元素，也可能是flash.
pick: ‘#‘ + pickerid,
// 不压缩image, 默认如果是jpeg，文件上传前会压缩一把再上传！
resize: false,
fileNumLimit: opts.fileNumLimit,
fileSizeLimit: opts.fileSizeLimit,
fileSingleSizeLimit: opts.fileSingleSizeLimit
},
opts.innerOptions);
var uploader = WebUploader.create(webuploaderoptions);
uploader.on(‘fileQueued‘, function (file) {
var $list = $("#thelist");
$list.append(‘<div id="‘ + file.id + ‘" class="item">‘ +
‘<div class="info">‘ + file.name + ‘</div>‘ +
‘<div class="state">等待上传...</div>‘ +
‘<div class="del"></div>‘ +
‘</div>‘);
});
uploader.on(‘uploadProgress‘, function (file, percentage) {
var $li = $(‘#‘ + file.id),
$percent = $li.find(‘.progress .bar‘);
// 避免重复创建
if (!$percent.length) {
$percent = $(‘<span class="progress">‘ +
‘<span class="percentage"><span class="text"></span>‘ +
‘<span class="bar" role="progressbar" style="width: 0%">‘ +
‘</span></span>‘ +
‘</span>‘).appendTo($li).find(‘.bar‘);
}
$li.find(‘div.state‘).text(‘上传中‘);
//$li.find(".text").text(percentage * 100 + ‘%‘);
$percent.css(‘width‘, percentage * 100 + ‘%‘);
});
uploader.on(‘uploadSuccess‘, function (file, response) {
$(‘#‘ + file.id).find(‘div.state‘).text(‘已上传‘);
var fileEvent = {
queueId: file.id,
name: file.name,
size: file.size,
type: file.type,
filePath: response.filePath
};
jsonData.fileList.push(fileEvent)
opts.onComplete(fileEvent);
});
uploader.on(‘uploadError‘, function (file) {
$(‘#‘ + file.id).find(‘div.state‘).text(‘上传出错‘);
});
uploader.on(‘uploadComplete‘, function (file) {
$(‘#‘ + file.id).find(‘.progress‘).fadeOut();
var fp = $("#" + opts.hiddenInputId);
fp.val(JSON.stringify(jsonData));
opts.onAllComplete(jsonData.fileList);
});
uploader.on(‘fileQueued‘, function (file) {
uploader.upload();
});
uploader.on(‘filesQueued‘, function (file) {
uploader.upload();
});
uploader.on(‘all‘, function (type) {
if (type === ‘startUpload‘) {
state = ‘uploading‘;
} else if (type === ‘stopUpload‘) {
state = ‘paused‘;
} else if (type === ‘uploadFinished‘) {
state = ‘done‘;
}
if (state === ‘uploading‘) {
$btn.text(‘暂停上传‘);
} else {
$btn.text(‘开始上传‘);
}
});
$btn.on(‘click‘, function () {
if (state === ‘uploading‘) {
uploader.stop();
} else {
uploader.upload();
}
});
//删除
$list.on("click", ".del", function () {
var $ele = $(this);
var id = $ele.parent().attr("id");
var deletefile = {};
$.each(jsonData.fileList, function (index, item) {
if (item && item.queueId === id) {
deletefile = jsonData.fileList.splice(index, 1)[0];
$("#" + opts.hiddenInputId).val(JSON.stringify(jsonData));
$.post(/*自己发送处理删除指令*/, function (returndata) {
$ele.parent().remove();
});
return;
}
});
});
}
$.fn.powerWebUpload = function (options) {
var ele = this;
$.lazyload(applicationPath + "/Scripts/lib/webuploader/webuploader.css", function () { }, ‘css‘);
$.lazyLoad(applicationPath + "/Scripts/lib/webuploader/webuploader.min.js", function () {
initWebUpload(ele, options);
});
}
})(jQuery, applicationPath);
MVC版后端文件接收，即便你是asp.net 引入mvc做ajax也是可以的：
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace FormDesigner
{
public class WebUploaderController : BaseController
{
public ActionResult Process(string id, string name, string type, string lastModifiedDate, int size)
{
string filePathName = string.Empty;
string urlPath = "../../App_Upload/Document";
string localPath = Path.Combine(HttpRuntime.AppDomainAppPath, "App_Upload\\Document");
if (Request.Files.Count == 0)
{
return Json(new { jsonrpc = 2.0, error = new { code = 102, message = "保存失败" }, id = "id" });
}
try
{
filePathName = //自己在这里处理文件保存
}
catch (Exception)
{
return Json(new { jsonrpc = 2.0, error = new { code = 103, message = "保存失败" }, id = "id" });
}
return Json(new
{
jsonrpc = "2.0",
id = "id",
filePath = urlPath + "/" + filePathName
});
}
}
}
页面后台就自己处理hiddenfiled的内容了。