雙核瀏覽器下在chrome核心中使用uploadify總有302問題，也不知道如何修復，之所以喜歡360瀏覽器是因為幫客戶控制渲染核心：
若頁面需預設用極速核，增加標籤：<meta name="renderer" content="webkit"> 若頁面需預設用ie相容核心，增加標籤：<meta name="renderer" content="ie-comp"> 若頁面需預設用ie標準核心，增加標籤：<meta name="renderer" content="ie-stand">
要解決302問題也很簡單，就是html5的檔案上傳，正好最近在ueditor裡看到百度的webuploader，會自動選擇flash html5，就是一個成熟的解決方案了。
先看前端，我們將最常用的操作封裝為外掛，asp.net中和MVC中最好使用相對於應用程式的絕對路徑，自行定義全域性applicationPath ：var applicationPath = "@(Href("~")=="/"?"":Href("~"))";
前端外掛程式碼：
var applicationPath = applicationPath === "" ? "" : applicationPath || "../..";
(function ($, applicationPath) {
function initWebUpload(item, options) {
var defaults = {
hiddenInputId: "uploadifyHiddenInputId", // input hidden id
onAllComplete: function (event) { }, // 當所有file都上傳後執行的回撥函式
onComplete: function (event) { },// 每上傳一個file的回撥函式
innerOptions: {},
fileNumLimit: undefined,
fileSizeLimit: undefined,
fileSingleSizeLimit: undefined
};
var opts = $.extend({}, defaults, options);
var target = $(item);//容器
var pickerid = "";
if (typeof guidGenerator36 != 'undefined')//給一個唯一ID
pickerid = guidGenerator36();
else
pickerid = (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
var uploaderStrdiv = '<div class="webuploader">' +
'<div id="thelist" class="uploader-list"></div>' +
'<div class="btns">' +
'<div id="' + pickerid + '">選擇檔案</div>' +
//'<a id="ctlBtn" class="btn btn-default">開始上傳</a>' +
'</div>' +
'</div>';
target.append(uploaderStrdiv);
var $list = target.find('#thelist'),
$btn = target.find('#ctlBtn'),//這個留著，以便隨時切換是否要手動上傳
state = 'pending',
uploader;
var jsonData = {
fileList: []
};
var webuploaderoptions = $.extend({
// swf檔案路徑
swf: applicationPath + '/Scripts/lib/webuploader/Uploader.swf',
// 檔案接收服務端。
server: applicationPath + '/MvcPages/WebUploader/Process',
// 選擇檔案的按鈕。可選。
// 內部根據當前執行是建立，可能是input元素，也可能是flash.
pick: '#' + pickerid,
// 不壓縮image, 預設如果是jpeg，檔案上傳前會壓縮一把再上傳！
resize: false,
fileNumLimit: opts.fileNumLimit,
fileSizeLimit: opts.fileSizeLimit,
fileSingleSizeLimit: opts.fileSingleSizeLimit
},
opts.innerOptions);
var uploader = WebUploader.create(webuploaderoptions);
uploader.on('fileQueued', function (file) {//佇列事件
$list.append('<div id="' + file.id + '" class="item">' +
'<div class="info">' + file.name + '</div>' +
'<div class="state">等待上傳...</div>' +
'<div class="del"></div>' +
'</div>');
});
uploader.on('uploadProgress', function (file, percentage) {//進度條事件
var $li = target.find('#' + file.id),
$percent = $li.find('.progress .bar');
// 避免重複建立
if (!$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('上傳中');
$li.find(".text").text(Math.round(percentage * 100) + '%');
$percent.css('width', percentage * 100 + '%');
});
uploader.on('uploadSuccess', function (file, response) {//上傳成功事件
target.find('#' + file.id).find('div.state').text('已上傳');
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) {
target.find('#' + file.id).find('div.state').text('上傳出錯');
});
uploader.on('uploadComplete', function (file) {//全部完成事件
target.find('#' + 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('暫停上傳');
} else {
$btn.text('開始上傳');
}
});
$btn.on('click', function () {
if (state === 'uploading') {
uploader.stop();
} else {
uploader.upload();
}
});
//刪除
$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(opts.ashx, { 'type': 'delete', 'filepathname': deletefile.filePath }, function (returndata) {
$ele.parent().remove();
});
return;
}
});
});
}
$.fn.powerWebUpload = function (options) {
var ele = this;
if (typeof PowerJs != 'undefined') {
$.lazyLoad(applicationPath + "/Scripts/lib/webuploader/webuploader.css", function () { }, 'css');
$.lazyLoad(applicationPath + "/Scripts/lib/webuploader/webuploader.min.js", function () {
initWebUpload(ele, options);
});
}
else {
initWebUpload(ele, options);
}
}
})(jQuery, applicationPath);
頁面引入上述js後使用： $("#uploader").powerWebUpload({ hiddenInputId: "uploadhidden" });html端需要一個容器和hidden<div id="uploadify" class="shortuploader"></div> <asp:HiddenField ID="hfFilePath" ClientIDMode="Static" runat="server" />
MVC版後端檔案接收，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;
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 = "儲存失敗" }, id = "id" });
}
try
{
filePathName = //自己在這裡處理檔案儲存 Request.Files[0]
}
catch (Exception)
{
return Json(new { jsonrpc = 2.0, error = new { code = 103, message = "儲存失敗" }, id = "id" });
}
return Json(new
{
jsonrpc = "2.0",
id = "id",
filePath = urlPath + "/" + filePathName
});
}
}
評論(1)