### WebUploader 多图片上传插件 **插件名：** 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。 **位置：** Public\plug\webuploader **插件地址：** https://github.com/fex-team/webuploader/releases **调用：** ~~~ <link rel="stylesheet" href="__PUBLIC__/plug/webuploader/0.1.5/webuploader.css"/> <script charset="UTF-8" src="__PUBLIC__/woms/js/goods_listing.js"></script> <script type="text/javascript" src="__PUBLIC__/plug/webuploader/0.1.5/webuploader.min.js"></script> ~~~ **完整代码：** ~~~ <div class="uploader-list-container"> <div class="queueList"> <div id="dndArea" class="placeholder" style="padding-top: 70px"> <div id="filePicker-2" w="1200" h="1200"></div> <p>或将照片拖到这里，单次最多可选10张</p> </div> </div> <div class="statusBar" style="display: none"> <div class="progress"> <span class="text">0%</span> <span class="percentage"></span> </div> <div class="info"></div> <div class="btns"> <div id="filePicker2"></div> <div class="uploadBtn">开始上传</div> </div> </div> </div> (function( $ ){ // 当domReady的时候开始初始化 $(function() { var $wrap = $('.uploader-list-container'), // 图片容器 $queue = $( '<ul class="filelist"></ul>' ).appendTo( $wrap.find( '.queueList' ) ), // 状态栏，包括进度和控制按钮 $statusBar = $wrap.find( '.statusBar' ), // 文件总体选择信息。 $info = $statusBar.find( '.info' ), // 上传按钮 $upload = $wrap.find( '.uploadBtn' ), // 没选择文件之前的内容。 $placeHolder = $wrap.find( '.placeholder' ), $progress = $statusBar.find( '.progress' ).hide(), // 添加的文件数量 fileCount = 0, // 添加的文件总大小 fileSize = 0, // 优化retina, 在retina下这个值是2 ratio = window.devicePixelRatio || 1, // 缩略图大小 thumbnailWidth = 110 * ratio, thumbnailHeight = 110 * ratio, // 可能有pedding, ready, uploading, confirm, done. state = 'pedding', // 所有文件的进度信息，key为file id percentages = {}, // 判断浏览器是否支持图片的base64 isSupportBase64 = ( function() { var data = new Image(); var support = true; data.onload = data.onerror = function() { if( this.width != 1 || this.height != 1 ) { support = false; } } data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw=="; return support; } )(), // 检测是否已经安装flash，检测flash的版本 flashVersion = ( function() { var version; try { version = navigator.plugins[ 'Shockwave Flash' ]; version = version.description; } catch ( ex ) { try { version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash') .GetVariable('$version'); } catch ( ex2 ) { version = '0.0'; } } version = version.match( /\d+/g ); return parseFloat( version[ 0 ] + '.' + version[ 1 ], 10 ); } )(), supportTransition = (function(){ var s = document.createElement('p').style, r = 'transition' in s || 'WebkitTransition' in s || 'MozTransition' in s || 'msTransition' in s || 'OTransition' in s; s = null; return r; })(), // WebUploader实例 uploader; var id = // 实例化 uploader = WebUploader.create({ pick: { id: '#filePicker-2', label: '点击选择图片' }, formData: { uid: 123, skc_id: "{$item.id}", skc: "{$item.goods_skc}" }, dnd: '#dndArea', paste: '#uploader', swf: '../Uploader.swf', chunked: false, chunkSize: 512 * 1024, server: '{:U("upload")}', // runtimeOrder: 'flash', accept: { title: 'Images', extensions: 'jpg,jpeg', mimeTypes: 'image/*' }, duplicate: false, //重复的文件 // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。 disableGlobalDnd: true, fileNumLimit: 10, fileSizeLimit: 200 * 1024 * 1024, // 200 M fileSingleSizeLimit: 50 * 1024 * 1024, // 50 M compress: false //设置图片上传前不压缩 }); // 拖拽时不接受 js, txt 文件。 uploader.on( 'dndAccept', function( items ) { var denied = false, len = items.length, i = 0, // 修改js类型 unAllowed = 'text/plain;application/javascript '; for ( ; i < len; i++ ) { // 如果在列表里面 if ( ~unAllowed.indexOf( items[ i ].type ) ) { denied = true; break; } } return !denied; }); // uploader.on('filesQueued', function() { // uploader.sort(function( a, b ) { // if ( a.name < b.name ) // return -1; // if ( a.name > b.name ) // return 1; // return 0; // }); // }); // 添加“添加文件”的按钮， uploader.addButton({ id: '#filePicker2', label: '继续添加' }); uploader.on('ready', function() { window.uploader = uploader; }); // 当有文件添加进来时执行，负责view的创建 function addFile( file ) { var $li = $( '<li id="' + file.id + '">' + '<p class="title">' + file.name + '</p>' + '<p class="imgWrap"></p>'+ '<p class="progress"><span></span></p>' + '</li>' ), $btns = $('<div class="file-panel">' + '<span class="cancel">删除</span>' + '<span class="rotateRight">向右旋转</span>' + '<span class="rotateLeft">向左旋转</span></div>').appendTo( $li ), $prgress = $li.find('p.progress span'), $wrap = $li.find( 'p.imgWrap' ), $info = $('<p class="error"></p>'), showError = function( code ) { switch( code ) { case 'exceed_size': text = '文件大小超出'; break; case 'interrupt': text = '上传暂停'; break; default: text = '上传失败，请重试'; break; } $info.text( text ).appendTo( $li ); }; if ( file.getStatus() === 'invalid' ) { showError( file.statusText ); } else { // @todo lazyload $wrap.text( '预览中' ); uploader.makeThumb( file, function( error, src ) { var img; if ( error ) { $wrap.text( '不能预览' ); return; } if( isSupportBase64 ) { img = $('<img src="'+src+'">'); $wrap.empty().append( img ); } else { $.ajax('../server/preview.php', { method: 'POST', data: src, dataType:'json' }).done(function( response ) { if (response.result) { img = $('<img src="'+response.result+'">'); $wrap.empty().append( img ); } else { $wrap.text("预览出错"); } }); } }, thumbnailWidth, thumbnailHeight ); percentages[ file.id ] = [ file.size, 0 ]; file.rotation = 0; } file.on('statuschange', function( cur, prev ) { if ( prev === 'progress' ) { $prgress.hide().width(0); } else if ( prev === 'queued' ) { $li.off( 'mouseenter mouseleave' ); $btns.remove(); } // 成功 if ( cur === 'error' || cur === 'invalid' ) { console.log( file.statusText ); showError( file.statusText ); percentages[ file.id ][ 1 ] = 1; } else if ( cur === 'interrupt' ) { showError( 'interrupt' ); } else if ( cur === 'queued' ) { percentages[ file.id ][ 1 ] = 0; } else if ( cur === 'progress' ) { $info.remove(); $prgress.css('display', 'block'); } else if ( cur === 'complete' ) { $li.append( '<span class="success"></span>' ); } $li.removeClass( 'state-' + prev ).addClass( 'state-' + cur ); }); $li.on( 'mouseenter', function() { $btns.stop().animate({height: 30}); }); $li.on( 'mouseleave', function() { $btns.stop().animate({height: 0}); }); $btns.on( 'click', 'span', function() { var index = $(this).index(), deg; switch ( index ) { case 0: uploader.removeFile( file ); return; case 1: file.rotation += 90; break; case 2: file.rotation -= 90; break; } if ( supportTransition ) { deg = 'rotate(' + file.rotation + 'deg)'; $wrap.css({ '-webkit-transform': deg, '-mos-transform': deg, '-o-transform': deg, 'transform': deg }); } else { $wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')'); // use jquery animate to rotation // $({ // rotation: rotation // }).animate({ // rotation: file.rotation // }, { // easing: 'linear', // step: function( now ) { // now = now * Math.PI / 180; // var cos = Math.cos( now ), // sin = Math.sin( now ); // $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')"); // } // }); } }); $li.appendTo( $queue ); } // 负责view的销毁 function removeFile( file ) { var $li = $('#'+file.id); delete percentages[ file.id ]; updateTotalProgress(); $li.off().find('.file-panel').off().end().remove(); } function updateTotalProgress() { var loaded = 0, total = 0, spans = $progress.children(), percent; $.each( percentages, function( k, v ) { total += v[ 0 ]; loaded += v[ 0 ] * v[ 1 ]; } ); percent = total ? loaded / total : 0; spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' ); spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' ); updateStatus(); } function updateStatus() { var text = '', stats; if ( state === 'ready' ) { text = '选中' + fileCount + '张图片，共' + WebUploader.formatSize( fileSize ) + '。'; } else if ( state === 'confirm' ) { stats = uploader.getStats(); if ( stats.uploadFailNum ) { text = '已成功上传' + stats.successNum+ '张照片至相册，'+ stats.uploadFailNum + '张照片上传失败，<a class="retry" href="#">重新上传</a>失败图片或<a class="ignore" href="#">忽略</a>' } } else { stats = uploader.getStats(); text = '共' + fileCount + '张（' + WebUploader.formatSize( fileSize ) + '），已上传' + stats.successNum + '张'; if ( stats.uploadFailNum ) { text += '，失败' + stats.uploadFailNum + '张'; } } $info.html( text ); } function setState( val ) { var file, stats; if ( val === state ) { return; } $upload.removeClass( 'state-' + state ); $upload.addClass( 'state-' + val ); state = val; switch ( state ) { case 'pedding': $placeHolder.removeClass( 'element-invisible' ); $queue.hide(); $statusBar.addClass( 'element-invisible' ); uploader.refresh(); break; case 'ready': $placeHolder.addClass( 'element-invisible' ); $( '#filePicker2' ).removeClass( 'element-invisible'); $queue.show(); $statusBar.removeClass('element-invisible'); uploader.refresh(); break; case 'uploading': $( '#filePicker2' ).addClass( 'element-invisible' ); $progress.show(); $upload.text( '暂停上传' ); break; case 'paused': $progress.show(); $upload.text( '继续上传' ); break; case 'confirm': $progress.hide(); $( '#filePicker2' ).removeClass( 'element-invisible' ); $upload.text( '开始上传' ); stats = uploader.getStats(); if ( stats.successNum && !stats.uploadFailNum ) { setState( 'finish' ); return; } break; case 'finish': stats = uploader.getStats(); console.log(stats); if ( stats.successNum ) { alert( '上传成功' ); setTimeout("location.reload()",1000); } else { // 没有成功的图片，重设 state = 'done'; location.reload(); } break; } updateStatus(); } uploader.onUploadProgress = function( file, percentage ) { var $li = $('#'+file.id), $percent = $li.find('.progress span'); $percent.css( 'width', percentage * 100 + '%' ); percentages[ file.id ][ 1 ] = percentage; // 限制上传图片的宽高 var imgReg = /^(jpeg|jpg|gif|png|bmp)$/i; if (imgReg.test(file.ext)) { // 获取到要限制宽高大小 var w = parseFloat($('#filePicker-2').attr('w')) || 10000; var h = parseFloat($('#filePicker-2').attr('h')) || 10000; if (file._info.width != w || file._info.height != h) { uploader.cancelFile( file ); var type = 'SIZEMORETHAN' uploader.trigger('error', type); return false; } } updateTotalProgress(); }; uploader.onFileQueued = function( file ) { fileCount++; fileSize += file.size; if ( fileCount === 1 ) { $placeHolder.addClass( 'element-invisible' ); $statusBar.show(); } addFile( file ); setState( 'ready' ); updateTotalProgress(); }; uploader.onFileDequeued = function( file ) { fileCount--; fileSize -= file.size; if ( !fileCount ) { setState( 'pedding' ); } removeFile( file ); updateTotalProgress(); }; uploader.on( 'all', function( type ) { var stats; switch( type ) { case 'uploadFinished': setState( 'confirm' ); break; case 'startUpload': setState( 'uploading' ); break; case 'stopUpload': setState( 'paused' ); break; } }); uploader.onError = function( code ) { switch (code) { case 'Q_EXCEED_NUM_LIMIT': alert('每次最多上传10张图片！'); break; case 'Q_TYPE_DENIED': alert('上传文件的格式不正确，支持上传jpg或者jpeg格式的图片！'); break; case 'F_DUPLICATE': alert('请不要添加重复的文件！'); break; case 'SIZEMORETHAN': alert('支持的图片尺寸为1200*1200！'); break; } //alert( code ); }; // 插件接收后台Ajax返回的数据 uploader.on("uploadAccept", function(file, data){ console.log(data); if (data.success=="0") { return false; } }) $upload.on('click', function() { if ( $(this).hasClass( 'disabled' ) ) { return false; } if ( state === 'ready' ) { uploader.upload(); } else if ( state === 'paused' ) { uploader.upload(); } else if ( state === 'uploading' ) { uploader.stop(); } }); $info.on( 'click', '.retry', function() { uploader.retry(); } ); $info.on( 'click', '.ignore', function() { alert( 'todo' ); } ); $upload.addClass( 'state-' + state ); updateTotalProgress(); }); })( jQuery ); ~~~ **截图：**  **图片上传对象实例化：** 1、实例化的过程中可以对插件作出相应的配置，包括图片上传的类型accept属性，文件大小，是否压缩等，传递到后台的地址写在server属性中。 2、要传递给后台的数据下载formData属性中， ~~~ // 实例化 uploader = WebUploader.create({ pick: { id: '#filePicker-2', label: '点击选择图片' }, formData: { uid: 123, skc_id: "{$item.id}", skc: "{$item.goods_skc}" }, dnd: '#dndArea', paste: '#uploader', swf: '../Uploader.swf', chunked: false, chunkSize: 512 * 1024, server: '{:U("upload")}', // runtimeOrder: 'flash', accept: { title: 'Images', extensions: 'jpg,jpeg', mimeTypes: 'image/*' }, duplicate: false, //重复的文件 // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。 disableGlobalDnd: true, fileNumLimit: 10, fileSizeLimit: 200 * 1024 * 1024, // 200 M fileSingleSizeLimit: 50 * 1024 * 1024, // 50 M compress: false //设置图片上传前不压缩 }); ~~~ **只能上传指定像素的图片的验证：** 在onUploadProgress事件中添加获取在html中设置的上传图片宽高的代码,如果不满足要求，返回错误代码‘SIZEMORETHAN’。 1、html： ~~~ <div class="queueList"> <div id="dndArea" class="placeholder" style="padding-top: 70px"> <div id="filePicker-2" w="1200" h="1200"></div> <p>或将照片拖到这里，单次最多可选10张</p> </div> </div> ~~~ 2、js: ~~~ uploader.onUploadProgress = function( file, percentage ) { var $li = $('#'+file.id), $percent = $li.find('.progress span'); $percent.css( 'width', percentage * 100 + '%' ); percentages[ file.id ][ 1 ] = percentage; // 限制上传图片的宽高 var imgReg = /^(jpeg|jpg|gif|png|bmp)$/i; if (imgReg.test(file.ext)) { // 获取到要限制宽高大小 var w = parseFloat($('#filePicker-2').attr('w')) || 10000; var h = parseFloat($('#filePicker-2').attr('h')) || 10000; if (file._info.width != w || file._info.height != h) { uploader.cancelFile( file ); var type = 'SIZEMORETHAN' uploader.trigger('error', type); return false; } } updateTotalProgress(); }; ~~~ 具体操作参见： https://bbs.csdn.net/topics/391969953 djkloop555 的答案  **错误代码：** 2、错误代码翻译成中文，官方给的DEMO中给出的报错只有错误代码，需要自己添加错误代码和中文的对应关系，在uploader的OnError事件中 ~~~ uploader.onError = function( code ) { switch (code) { case 'Q_EXCEED_NUM_LIMIT': alert('每次最多上传10张图片！'); break; case 'Q_TYPE_DENIED': alert('上传文件的格式不正确，支持上传jpg或者jpeg格式的图片！'); break; case 'F_DUPLICATE': alert('请不要添加重复的文件！'); break; case 'SIZEMORETHAN': alert('支持的图片尺寸为1200*1200！'); break; } //alert( code ); }; ~~~  **插件接收后台Ajax返回的数据：** 后台返回的数据需要在uploadAccept事件中接收 ~~~ uploader.on("uploadAccept", function(file, data){ console.log(data); if (data.success=="0") { return false; } }) ~~~