百度 flash html5自切换 多文件异步上传控件webuploader基本用法

时间:2022-06-01 18:41:28

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("~"))";

前端插件代码:

 (function ($, window) {
    var applicationPath = window.applicationPath === "" ? "" : window.applicationPath || "../..";
    function S4() {
      return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
    } function initWebUpload(item, options) { if (!WebUploader.Uploader.support()) {
var error = "上传控件不支持您的浏览器!请尝试升级flash版本或者使用Chrome引擎的浏览器。<a target='_blank' href='http://se.360.cn'>下载页面</a>";
if (window.console) {
window.console.log(error);
}
$(item).text(error);
return;
} 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,
PostbackHold: false
}; var opts = $.extend({}, defaults, options);
var hdFileData = $("#" + opts.hiddenInputId); var target = $(item);//容器
var pickerid = "";
if (typeof guidGenerator36 != 'undefined')//给一个唯一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 + '">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'),//这个留着,以便随时切换是否要手动上传
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);       //回发时还原hiddenfiled的保持数据
      var fileDataStr = hdFileData.val();
      if (fileDataStr && opts.PostbackHold) {
        jsonData = JSON.parse(fileDataStr);
      $.each(jsonData.fileList, function (index, fileData) {
      var newid = S4();
      fileData.queueId = newid;
      $list.append('<div id="' + newid + '" class="item">' +
        '<div class="info">' + fileData.name + '</div>' +
        '<div class="state">已上传</div>' +
        '<div class="del"></div>' +
        '</div>');
      });
      hdFileData.val(JSON.stringify(jsonData));
      } uploader.on('fileQueued', function (file) {//队列事件
$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) {//进度条事件
var $li = target.find('#' + 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(Math.round(percentage * 100) + '%');
$percent.css('width', percentage * 100 + '%');
});
uploader.on('uploadSuccess', function (file, response) {//上传成功事件
target.find('#' + 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) {
target.find('#' + file.id).find('div.state').text('上传出错');
}); 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('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) {
              uploader.removeFile(uploader.getFile(id));//不要遗漏
deletefile = jsonData.fileList.splice(index, 1)[0];
$("#" + opts.hiddenInputId).val(JSON.stringify(jsonData));
$.post(applicationi + "/Webploader/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, window);

页面引入上述js后使用:

$("#uploader").powerWebUpload({ hiddenInputId: "uploadhidden" });

html端需要一个容器和hidden

<div id="uploader"></div>
<asp:HiddenField ID="hfFilePath" ClientIDMode="Static" runat="server" />

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;
public class WebUploaderController : BaseController
{
public ActionResult Process(string id, string name, string type, string lastModifiedDate, int size, HttpPostedFileBase file)
{
string filePathName = string.Empty;string localPath = Path.Combine(HttpRuntime.AppDomainAppPath, "Upload\\Document");
if (Request.Files.Count == )
{
return Json(new { jsonrpc = 2.0, error = new { code = , message = "保存失败" }, id = "id" });
}
try
{
filePathName = //自己在这里处理文件保存并返回需要保存到hidden的数据,文件在file或者Request.Files[0]
}
catch (Exception)
{
return Json(new { jsonrpc = 2.0, error = new { code = , message = "保存失败" }, id = "id" });
} return Json(new
{
jsonrpc = "2.0",
id = "id",
filePath = urlPath + "/" + filePathName
});
}
     static string urlPath = "../../Upload/Document";
 
        public ActionResult Delete(string filePathName)
        {
            if (string.IsNullOrEmpty(filePathName))
            {
                return Content("no");
            }
            //为了安全 检查一下路径 不够严谨 自行更具业务做更加细致的判断
            if (!filePathName.StartsWith(urlPath) ||
                filePathName.Substring(6, filePathName.Length - 7).Contains("../"))
            {
                return Content("no!");
            }
            string localFilePathName = this.Server.MapPath(filePathName);             try
            {
                bool b = UploadifyManager.DeleteAttachment(localFilePathName);
                if (!b) throw new Exception("删除文件失败");                 return Content("ok");
            }
            catch
            {
                return Content("no");
            }
        }
    }

----

一开始发首页被退下来了,现在重新编辑使内容更加完整,优化了插件代码

完整demo: http://yunpan.cn/cgifFwGhbGSvi  提取码 f7c1

https://github.com/gxrsprite/AspnetMvcWebuploaderDemo

补充:

扩展自定义参数,利用uploadBeforeSend事件可以扩展参数,插件内可根据需要修改。

cookie的问题,我用微软自带的登录系统,不需要做任何特殊处理完全没有问题。