前言
首先声明一下,我这个是对WebUploader开源上传控件的二次封装,底层还是WebUploader实现的,只是为了更简洁的使用他而已.
下面先介绍一下WebUploader
简介:
WebUploader是由Baidu WebFE(FEX)团队开发的一个简单的以HTML5为主，FLASH为辅的现代文件上传组件。在现代的浏览器里面能充分发挥HTML5的优势，同时又不摒弃主流IE浏览器，沿用原来的FLASH运行时，兼容IE6+，iOS 6+, android 4+。两套运行时，同样的调用方式，可供用户任意选用。
采用大文件分片并发上传，极大的提高了文件上传效率。
官网地址:http://fex.baidu.com/webuploader/
有兴趣想自己玩的的可以直接移步官网
下面我们开始正文内容:
正文
从上面我们可以看到百度的这个WebUploader功能确实很强大,但是和所有的上传控件一样,使用起来比较繁琐比如下面这样:
你需要先引用一大堆相关的类库,
然后还要写好HTML
然后写大量的JS,比如:
var uploader = WebUploader.create({ ???// swf文件路径 ???swf: BASE_URL + ‘/js/Uploader.swf‘, ???// 文件接收服务端。 ???server: ‘http://webuploader.duapp.com/server/fileupload.php‘, ???// 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: ‘#picker‘, ???// 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});uploader.on( ‘uploadProgress‘, function( file, percentage ) { ???var $li = $( ‘#‘+file.id ), ???????$percent = $li.find(‘.progress .progress-bar‘); ???// 避免重复创建 ???if ( !$percent.length ) { ???????$percent = $(‘<div class="progress progress-striped active">‘ + ?????????‘<div class="progress-bar" role="progressbar" style="width: 0%">‘ + ?????????‘</div>‘ + ???????‘</div>‘).appendTo( $li ).find(‘.progress-bar‘); ???} ???$li.find(‘p.state‘).text(‘上传中‘); ???$percent.css( ‘width‘, percentage * 100 + ‘%‘ );});//....以下省略,配置各种参数和情况这些我们通通不要!,只要两句话,搞定我们的上传.如下:
//创建一个容器<div id="uploader" style="margin-left:10px"></div>
$(function () { ???????//渲染容器 ???????$("#uploader").powerWebUpload({ auto: false,fileNumLimit:5 }); ???}) ???function GetFiles1() { ??????//获取上传的文件地址 ???????var data = $("#uploader").GetFilesAddress(); ???????alert(data[0]) ???}简单快捷,效果如下:
我已经写好了bootstrap风格的css会自动引用,
支持多文件上传,
自动判别重复文件,
可选自动上传和手动上传,
可以页面中渲染多个上传控件,不冲突
然后一些WebUploader相关的配置参数都是可以直接自己配置的.
下面我们直接上我封装好的JS小插件(有点乱,大家凑合看):
(function ($, window) { ???var applicationPath = window.applicationPath === "" ? "" : window.applicationPath || "../.."; ???function SuiJiNum() { ???????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; ???????} ???????//创建默认参数 ???????var defaults = { ???????????auto:true, ???????????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,//验证文件总数量, 超出则不允许加入队列 ???????????fileSizeLimit: undefined,//验证文件总大小是否超出限制, 超出则不允许加入队列。 ???????????fileSingleSizeLimit: undefined,//验证单个文件大小是否超出限制, 超出则不允许加入队列 ???????????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">‘ ???????debugger ???????if (opts.auto) { ???????????uploaderStrdiv = ????????????‘<div id="Uploadthelist" class="uploader-list"></div>‘ + ???????????‘<div class="btns">‘ + ???????????‘<div id="‘ + pickerid + ‘">选择文件</div>‘ + ???????????‘</div>‘ ???????} else { ???????????uploaderStrdiv = ????????????‘<div ?class="uploader-list"></div>‘ + ???????????‘<div class="btns">‘ + ???????????‘<div id="‘ + pickerid + ‘">选择文件</div>‘ + ???????????‘<button class="webuploadbtn">开始上传</button>‘ + ???????????‘</div>‘ ???????} ???????uploaderStrdiv += ‘<div style="display:none" class="UploadhiddenInput" > ????????????????????????</div>‘ ???????uploaderStrdiv+=‘</div>‘; ???????target.append(uploaderStrdiv); ???????var $list = target.find(‘.uploader-list‘), ????????????$btn = target.find(‘.webuploadbtn‘),//手动上传按钮备用 ????????????state = ‘pending‘, ????????????$hiddenInput = target.find(‘.UploadhiddenInput‘), ????????????uploader; ???????var jsonData = { ???????????fileList: [] ???????}; ???????var webuploaderoptions = $.extend({ ???????????// swf文件路径 ???????????swf: applicationPath + ‘/Scripts/lib/webuploader/Uploader.swf‘, ???????????// 文件接收服务端。 ???????????server: ?‘/Home/AddFile‘, ???????????deleteServer:‘/Home/DeleteFile‘, ???????????// 选择文件的按钮。可选。 ???????????// 内部根据当前运行是创建，可能是input元素，也可能是flash. ???????????pick: ‘#‘ + pickerid, ???????????//不压缩image, 默认如果是jpeg，文件上传前会压缩一把再上传！ ???????????resize: false, ???????????fileNumLimit: opts.fileNumLimit, ???????????fileSizeLimit: opts.fileSizeLimit, ???????????fileSingleSizeLimit: opts.fileSingleSizeLimit ???????}, ???????opts.innerOptions); ???????var uploader = WebUploader.create(webuploaderoptions); ???????//回发时还原hiddenfiled的保持数据 ???????var fileDataStr = hdFileData.val(); ???????if (fileDataStr && opts.PostbackHold) { ???????????jsonData = JSON.parse(fileDataStr); ???????????$.each(jsonData.fileList, function (index, fileData) { ???????????????var newid = SuiJiNum(); ???????????????fileData.queueId = newid; ???????????????$list.append(‘<div id="‘ + newid + ‘" class="item">‘ + ???????????????‘<div class="info">‘ + fileData.name + ‘</div>‘ + ???????????????‘<div class="state">已上传</div>‘ + ???????????????‘<div class="del"></div>‘ + ???????????????‘</div>‘); ???????????}); ???????????hdFileData.val(JSON.stringify(jsonData)); ???????} ???????if (opts.auto) { ???????????????????????uploader.on(‘fileQueued‘, function (file) { ???????????????debugger; ???????????????$list.append(‘<div id="‘ + $(item)[0].id + file.id + ‘" class="item">‘ + ??????????????????‘<span class="webuploadinfo">‘ + file.name + ‘</span>‘ + ??????????????????‘<span class="webuploadstate">正在上传...</span>‘ + ??????????????????‘<div class="webuploadDelbtn">删除</div><br />‘ + ??????????????‘</div>‘); ???????????????uploader.upload(); ???????????}); ???????} else { ???????????uploader.on(‘fileQueued‘, function (file) {//队列事件 ???????????????$list.append(‘<div id="‘ + $(item)[0].id + file.id + ‘" class="item">‘ + ???????????????????‘<span class="webuploadinfo">‘ + file.name + ‘</span>‘ + ???????????????????‘<span class="webuploadstate">等待上传...</span>‘ + ???????????????????‘<div class="webuploadDelbtn">删除</div><br />‘ + ???????????????‘</div>‘); ???????????}); ???????} ??????????????????????uploader.on(‘uploadProgress‘, function (file, percentage) {//进度条事件 ???????????var $li = target.find(‘#‘ + $(item)[0].id + file.id), ???????????????$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‘); ???????????} ???????????$li.find(‘span.webuploadstate‘).html(‘上传中‘); ???????????$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 ???????????debugger ???????????if (response.state == "error") { ???????????????target.find(‘#‘ + $(item)[0].id + file.id).find(‘span.webuploadstate‘).html(response.message); ???????????} else { ???????????????target.find(‘#‘ + $(item)[0].id + file.id).find(‘span.webuploadstate‘).html(‘已上传‘); ???????????????$hiddenInput.append(‘<input type="text" id="hiddenInput‘+$(item)[0].id + file.id + ‘" class="hiddenInput" value="‘ + response.message + ‘" />‘) ???????????} ???????}); ???????uploader.on(‘uploadError‘, function (file) { ???????????target.find(‘#‘ + $(item)[0].id + file.id).find(‘span.webuploadstate‘).html(‘上传出错‘); ???????}); ???????uploader.on(‘uploadComplete‘, function (file) {//全部完成事件 ???????????target.find(‘#‘ + $(item)[0].id + file.id).find(‘.progress‘).fadeOut(); ???????}); ???????uploader.on(‘all‘, function (type) { ???????????if (type === ‘startUpload‘) { ???????????????state = ‘uploading‘; ???????????} else if (type === ‘stopUpload‘) { ???????????????state = ‘paused‘; ???????????} else if (type === ‘uploadFinished‘) { ???????????????state = ‘done‘; ???????????} ???????????if (state === ‘uploading‘) { ???????????????$btn.text(‘暂停上传‘); ???????????} else { ???????????????$btn.text(‘开始上传‘); ???????????} ???????}); ???????//删除时执行的方法 ???????uploader.on(‘fileDequeued‘, function (file) { ???????????debugger ???????????????????????var fullName = $("#hiddenInput" + $(item)[0].id + file.id).val(); ???????????if (fullName!=null) { ???????????????$.post(webuploaderoptions.deleteServer, { fullName: fullName }, function (data) { ???????????????????alert(data.message); ???????????????}) ???????????} ???????????$("#"+ $(item)[0].id + file.id).remove(); ???????????$("#hiddenInput" + $(item)[0].id + file.id).remove(); ???????????????????}) ???????//多文件点击上传的方法 ???????$btn.on(‘click‘, function () { ???????????if (state === ‘uploading‘) { ???????????????uploader.stop(); ???????????} else { ???????????????uploader.upload(); ???????????} ???????}); ???????//删除 ???????$list.on("click", ".webuploadDelbtn", function () { ???????????debugger ???????????var $ele = $(this); ???????????var id = $ele.parent().attr("id"); ???????????var id = id.replace($(item)[0].id, ""); ???????????var file = uploader.getFile(id); ???????????uploader.removeFile(file); ???????}); ???} ???$.fn.GetFilesAddress = function (options) { ???????var ele = $(this); ???????var filesdata = ele.find(".UploadhiddenInput"); ???????var filesAddress = []; ???????filesdata.find(".hiddenInput").each(function () { ???????????filesAddress.push($(this).val()); ???????}) ???????return filesAddress; ???????????} ???$.fn.powerWebUpload = function (options) { ???????var ele = this; ???????if (typeof WebUploader == ‘undefined‘) { ???????????var casspath = applicationPath + "/Scripts/webuploader/webuploader.css"; ???????????$("<link>").attr({ rel: "stylesheet", type: "text/css", href: casspath }).appendTo("head"); ???????????var jspath = applicationPath + "/Scripts/webuploader/webuploader.min.js"; ???????????$.getScript(jspath) .done(function() { ???????????????initWebUpload(ele, options); ???????????}) ???????????.fail(function() { ???????????????alert("请检查webuploader的路径是否正确!") ???????????}); ??????????????????} ???????else { ???????????initWebUpload(ele, options); ???????} ???}})(jQuery, window);一些相关的比较重要的参数都写了注释,大家自行参考即可.
然后我们来使用他.
//引入JS,记得要先引入jquery<script src="~/Scripts/jquery-1.10.2.min.js"></script><script src="~/Scripts/MyWebUpload.js"></script>
写好我们的JS和HTML如下:
<script> ???$(function () { ???????$("#uploader").powerWebUpload({ auto: false,fileNumLimit:5 }); ???}) ???function GetFiles1() { ???????var data = $("#uploader").GetFilesAddress(); ???????alert(data[0]) ???}</script><div id="uploader" style="margin-left:10px"></div><input type="button" value="1111" ?onclick="GetFiles1()"/>这样就OK了,值得注意的是
powerWebUpload中的参数请参考官网的API
GetFilesAddress()方法会返回上传之后文件路径的数组,大家自行获取.
最后上一个我写好的demo,采用Asp.net MVC实现的,大家自行下载:
百度网盘:
链接: http://pan.baidu.com/s/1o8B0xOQ 密码: 9kws
对百度WebUploader开源上传控件的二次封装,精简前端代码(两句代码搞定上传)
原文地址：http://www.cnblogs.com/Alex80/p/7784603.html