jquery文件上传控件 WebUploader

WebUploader是百度开源的一个文件上传组件，因为其操作简洁大方，就在项目中使用了，记录一下。

效果是这样子：
jquery文件上传控件 WebUploader
这个样子是默认的效果。

jquery文件上传控件 WebUploader
这个是选择上传的图片，可以批量，选择后可以删除和添加更多。

jquery文件上传控件 WebUploader
这个是上传过程显示的效果。








<div id="container">







   <!--头部，相册选择和格式选择-->







   <div id="uploader">







       <div class="queueList">







           <div id="dndArea" class="placeholder">







               <div id="filePicker"></div>







               <p><s:text name="resource.upload.tip"/></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"><s:text name="resource.starttoupload"></s:text></div>







           </div>







       </div>







   </div>







</div>

js部分代码，下面这段代码是webuploader官方的示例代码uploader.js做的修改：








(function( $ ){







    // 当domReady的时候开始初始化







    $(function() {







        var filePerSize = [];//每个文件大小







        var fileName = [];







        var fileSize = 0;















        var $wrap = $('#uploader'),















            // 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;















        if ( !WebUploader.Uploader.support('flash') && WebUploader.browser.ie ) {







            // flash 安装了但是版本过低。







            if (flashVersion) {







                (function(container) {







                    window['expressinstallcallback'] = function( state ) {







                        switch(state) {







                            case 'Download.Cancelled':







                                //alert('您取消了更新！')







                                break;















                            case 'Download.Failed':







                                //alert('安装失败')







                                break;















                            default:







                                //alert('安装已成功，请刷新！');







                                break;







                        }







                        delete window['expressinstallcallback'];







                    };















                    var swf = './expressInstall.swf';







                    // insert flash object







                    var html = '<object type="application/' +







                            'x-shockwave-flash" data="' +  swf + '" ';















                    if (WebUploader.browser.ie) {







                        html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';







                    }















                    html += 'width="100%" height="100%" style="outline:0">'  +







                        '<param name="movie" value="' + swf + '" />' +







                        '<param name="wmode" value="transparent" />' +







                        '<param name="allowscriptaccess" value="always" />' +







                    '</object>';















                    container.html(html);







                })($wrap);















            // 压根就没有安转。







            } else {







                $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');







            }















            return;







        } else if (!WebUploader.Uploader.support()) {







            alert( 'Web Uploader not support your browser！');







            return;







        }















        // 实例化







        uploader = WebUploader.create({







            pick: {







                id: '#filePicker',







                name: 'multiFile',







                label: 'Click To Select'







            },







            formData: {







                "status": "multi",







                "contentsDto.contentsId": "xxxx",







                "uploadNum": "xxxx",







                "existFlg": "false",







            },







            dnd: '#dndArea',







            paste: '#uploader',







            method: 'POST',







            swf: '../../dist/Uploader.swf',







            chunked: false,







            chunkSize: 512 * 1024,







            chunkRetry:false,







            server: 'resource/upload.action?resourcetype=hd',







            fileVal:'multiFile',







            resize: false,







            // runtimeOrder: 'flash',















            /* accept: {







                title: 'Images',







                extensions: 'gif,jpg,bmp,png,m2v',







                mimeTypes: 'image/*,video/mpeg',







            }, */















            // 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: 300,







            fileSizeLimit: 200 * 1024 * 1024,    // 200 M







            fileSingleSizeLimit: 50 * 1024 * 1024    // 50 M







        });















        // 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;







        });















        //点击按钮弹出选择框







        /*uploader.on('dialogOpen', function() {







            console.log('here');







        });*/















        // 添加"添加文件"的按钮，







        uploader.addButton({







            id: '#filePicker2',







            label: '<s:text name="resource.addmore"></s:text>'







        });















        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"><s:text name="resource.delete"></s:text></span>' +







                    '<span class="rotateRight"><s:text name="resource.rotateToRight"></s:text></span>' +







                    '<span class="rotateLeft"><s:text name="resource.rotateToLeft"></s:text></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 = '<s:text name="resource.exceedSize"></s:text>';







                            break;















                        case 'interrupt':







                            text = '<s:text name="resource.pauseupload"></s:text>';







                            break;















                        default:







                            text = '<s:text name="resource.uploadfailed"></s:text>';







                            break;







                    }















                    $info.text( text ).appendTo( $li );







                };















            if ( file.getStatus() === 'invalid' ) {







                showError( file.statusText );







            } else {







                // @todo lazyload







                $wrap.text( '<s:text name="resource.onPreview"></s:text>' );







                uploader.makeThumb( file, function( error, src ) {







                    var img;















                    if ( error ) {







                        $wrap.text( '<s:text name="resource.unablePreview"></s:text>' );







                        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' ) {







                    $info.remove();







                    $prgress.css('display', 'block');







                    percentages[ file.id ][ 1 ] = 0;







                } else if ( cur === 'progress' ) {







                    $info.remove();







                    $prgress.css('display', 'block');







                } else if ( cur === 'complete' ) {







                    $prgress.hide().width(0);







                    $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) +')');







                }







            });







            $li.appendTo($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 = '<s:text name="resource.selected"></s:text>' + fileCount + ', <s:text name="resource.totalSize"></s:text>' +







                        WebUploader.formatSize(fileSize);







            } else if ( state === 'confirm' ) {







                stats = uploader.getStats();







                if ( stats.uploadFailNum ) {







                    text = '<s:text name="resource.uploaded"></s:text>' + stats.successNum+ ', <s:text name="resource.failed"></s:text>'+







                        stats.uploadFailNum + ', <a class="retry" href="#" style="color:red;">' + '<s:text name="resource.retry"></s:text>'+'</a>&nbsp;<s:text name="resource.or"></s:text><a class="ignore" href="#" style="color:blue;">&nbsp;<s:text name="resource.ignore"></s:text></a>'







                }







            } else {







                stats = uploader.getStats();







                text = '<s:text name="resource.total"></s:text>' + fileCount + '(' +







                        WebUploader.formatSize( fileSize )  +







                        '), <s:text name="resource.uploaded"></s:text>:' + stats.successNum;















                if ( stats.uploadFailNum ) {







                    text += ', <s:text name="resource.failed"></s:text>:' + stats.uploadFailNum;







                }







            }







            $info.html(text);







        }















        /*关闭上传框窗口后恢复上传框初始状态*/







        function closeUploader() {        







            // 移除所有缩略图并将上传文件移出上传序列







            for (var i = 0; i < uploader.getFiles().length; i++) {







                // 将图片从上传序列移除







                uploader.removeFile(uploader.getFiles()[i]);







                // 将图片从缩略图容器移除







                var $li = $('#' + uploader.getFiles()[i].id);







                $li.off().remove();







            }







            setState('pedding');







            // 重置文件总个数和总大小







            fileCount = 0;







            fileSize = 0;







            // 重置uploader，目前只重置了文件队列







            uploader.reset();







            // 更新状态等，重新计算文件总个数和总大小







            updateStatus();







        }















        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( '<s:text name="resource.pauseupload"></s:text>' );







                    var fileArray1 = uploader.getFiles();







                    var fileNames = [];







                    fileSize = 0;







                    for(var i=0; i<fileArray1.length; i++) {







                        fileNames.push(fileArray1[i].name);







                        fileSize += fileArray1[i].size;







                        filePerSize.push(fileArray1[i].size);







                        fileName.push(fileArray1[i].name);







                    }







                    $.extend(true, uploader.options.formData, {"fileSize": fileSize, "multiFileName": fileName, "filePerSize": filePerSize});







                    break;















                case 'paused':







                    $progress.show();







                    $upload.text('<s:text name="resource.continueupload"></s:text>');







                    break;















                case 'confirm':







                    $progress.hide();







                    $('#filePicker2').removeClass('element-invisible');







                    $upload.text('<s:text name="resource.starttoupload"></s:text>');















                    stats = uploader.getStats();







                    if (stats.successNum && !stats.uploadFailNum) {







                        setState('finish');







                        return;







                    }







                    break;







                case 'finish':







                    stats = uploader.getStats();







                    //alert(stats.successNum);







                    if (stats.successNum) {







                        if(flag) {







                            //alert('上传成功');







                            confirmBox("<s:text name='resource.tiptitle'></s:text>",







                                            "Upload Success",







                                            function(tag) {







                                                if (tag) {







                                                    var url = 'resource/uploadHd.jsp';







                                                    loadUrl(url);







                                                } else {







                                                    return;







                                                } 







                                            });







                                    $("#boxwhite a[name=f]").html("<s:text name="box.no"/>").hide(); 







                                    $("#boxwhite a[name=t]").html("<s:text name="box.sure"/>");







                        } else {







                            loadUrl('resource/uploadHd.jsp');







                        }







                        //刷新界面 







                        //setTimeout("loadUrl('resource/uploadHd.jsp')", 1000);







                    } else {







                        // 没有成功的图片，重设







                        state = 'done';







                        location.reload();







                    }







                    break;







            }







            updateStatus();







        }















        var flag = true;















        uploader.on("uploadAccept", function(object, ret){







            if(ret != null && ret != '') {







                var data = JSON.parse(ret._raw);







                if(data != null && data != '') {







                    if(data.resultCode == '1' || data.resultCode == '2') {







                        var tip = '';







                        if(data.resultCode == '1') {







                            tip = "<s:text name='resource.fileExists'></s:text>";







                        }else {







                            tip = "<s:text name='resource.fileTypeError'></s:text>" + data.message;







                        }







                        confirmBox("<s:text name='resource.tiptitle'></s:text>",







                                tip,







                                function(tag) {







                                    if (tag) {







                                        flag = false;







                                        updateStatus();







                                        var url = 'resource/uploadHd.jsp';







                                        loadUrl(url);







                                    } else {







                                        return;







                                    } 







                                });







                        $("#boxwhite a[name=f]").html("<s:text name="box.no"/>").hide(); 







                        $("#boxwhite a[name=t]").html("<s:text name="box.sure"/>");







                    } else {







                        flag = true;







                    }







                }







            }







        });















        uploader.onUploadProgress = function(file, percentage) {







            var $li = $('#'+file.id),







                $percent = $li.find('.progress span');















            $percent.css( 'width', percentage * 100 + '%' );







            percentages[ file.id ][ 1 ] = percentage;







            updateTotalProgress();







        };















        uploader.on("uploadError", function(file, reason){







            alert("uploadError");







        });















        uploader.onFileQueued = function(file) {







            fileCount++;







            fileSize += file.size;







            if (fileCount === 1) {







                $placeHolder.addClass('element-invisible');







                $statusBar.show();







            }















            addFile(file);







            setState('ready');







            updateTotalProgress();







        };















        /**







         * 移出队列







         */







        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 ) {







            if (type=="Q_TYPE_DENIED"){







                //dialogMsg("myModal","messageP","请上传JPG、PNG格式文件");







            }else if(type=="F_EXCEED_SIZE"){







                //dialogMsg("myModal","messageP","文件大小不能超过8M");







            }







            uploader.reset();







            fileSize = 0;







            fileName = [];







            filePerSize = [];







        }; 















        /**







         * 点击上传按钮







         */







        $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();







            }







        });















        /**







         * 点击重试按钮







         */







        $info.on( 'click', '.retry', function() {







            uploader.retry();







        } );















        /**







         * 点击忽略按钮







         */







        $info.on( 'click', '.ignore', function() {







            //执行忽略动作，把图片清除







            closeUploader();







        });















        $upload.addClass( 'state-' + state );







        updateTotalProgress();







    });







})( jQuery );

使用Action接收时，可以这么写：








//多文件上传的文件对象，多文件是一个一个文件上传，所以multiFile是当前正在上传的文件对象







private File multiFile;







//多文件上传文件对象的名称，当前正在上传的文件名







private String multiFileFileName;







//所有文件的总大小







private String fileSize;







//文件名列表







private String[] multiFileName;







//每个文件的大小







private String[] filePerSize;







public void setMultiFile(File multiFile) {







        this.multiFile = multiFile;







}















public File getMultiFile() {







    return multiFile;







}















public void setMultiFileFileName(String multiFileFileName) {







    this.multiFileFileName = multiFileFileName;







}















public void setFileSize(String fileSize) {







    this.fileSize = fileSize;







}















public void setMultiFileName(String[] multiFileName) {







    this.multiFileName = multiFileName;







}















public void setFilePerSize(String[] filePerSize) {







    this.filePerSize = filePerSize;







}







public void uploadFile() {







    String physicPath = Constant.AD_RESOURCE_BASE_DIR;







    String subPath = "";







    int resolution = -1;







    String type = request.getParameter("resourcetype");







    if(StringUtils.isNotBlank(type)) {







        if(Constant.RESOURCE_TYPE_HD.equals(type)) {







            subPath = Constant.AD_RESOURCE_HD_DIR;







            resolution = 1;







        } else if(Constant.RESOURCE_TYPE_SD.equals(type)) {







            subPath = Constant.AD_RESOURCE_SD_DIR;







            resolution = 0;







        }







    }







    File fdir = new File(physicPath+"/"+subPath);







    if(!fdir.exists()) {







        fdir.mkdirs();







    }







    String resPath = "/" + subPath + "/" + multiFileFileName;







    String path = physicPath + resPath;//文件路径







    PrintWriter out = null;







    try {







        out = response.getWriter();







    } catch (IOException e) {







        log.error(e);







    }







    if(!isValidResource(multiFileFileName.substring(multiFileFileName.lastIndexOf(".") + 1))) {







        ResultJson resultJson = new ResultJson();







        resultJson.setResultCode("2");







        resultJson.setMessage(multiFileFileName);







        out.print(JsonUtil.toJsonString(resultJson));







        return;







    }







    try {







        File file = this.getMultiFile();







        //判断文件是否已经存在，不存在则存，否则不存







        String savePath = path.substring(path.lastIndexOf("/" + Constant.AD_RESOURCE_STORE_BASE_DIR));







        boolean isExists = adResourceService.queryFile(savePath);//linux下图片名区分大小写







        log.info("isExist=" + isExists);







        if(isExists) {







            ResultJson resultJson = new ResultJson();







            resultJson.setResultCode("1");







            resultJson.setMessage("same name file exists!");







            response.getWriter().print(JsonUtil.toJsonString(resultJson));







            return;







        } else {







            ResultJson resultJson = new ResultJson();







            resultJson.setResultCode("0");







            resultJson.setMessage("ok");







            response.getWriter().print(JsonUtil.toJsonString(resultJson));







        }







        FileUtil.randomAccessFile(path, file);







        log.info("upload finish....");







        //insert into db.







        File f = new File(path);







        //1:bmp;2:jpg;3:gif;4:png;5:mpg;6:m2v







        log.info("f.exists()=" + f.exists());







        if(f.exists()) {







            String fname = f.getName();







            log.info("filename=" + fname);







            String fsuffix = fname.substring(fname.lastIndexOf(".") + 1);







            if(fname.endsWith(".bmp") || fname.endsWith(".BMP") || fname.endsWith(".jpg") || fname.endsWith(".JPG")







                    || fname.endsWith(".gif") || fname.endsWith(".GIF") || fname.endsWith(".png") || fname.endsWith(".PNG")) {















                BufferedImage bimg = ImageIO.read(f);







                int picWidth = bimg.getWidth();







                int picHeight = bimg.getHeight();







                int picType = 0;







                switch (fsuffix.toLowerCase()) {







                case Constant.IMG_FORMAT_BMP:







                    picType = 1;







                    break;







                case Constant.IMG_FORMAT_JPG:







                    picType = 2;







                    break;







                case Constant.IMG_FORMAT_PNG:







                    picType = 4;







                    break;







                case Constant.IMG_FORMAT_GIF:







                    picType = 3;







                    break;







                }







                System.out.println("fileSize=" + file.length());







                log.info("fileSize=" + file.length());







                adResourceService.upload(resolution, resPath, picHeight, picWidth, (int)file.length(), picType, fsuffix);







            } else if(fname.endsWith(".mpg") || fname.endsWith(".MPG") || fname.endsWith(".m2v") || fname.endsWith(".M2V")) {







                //截取画像,获取分辨率







                //mpg , m2v,直接把文件路径存进去，在预览的时候动态生成帧画面







                int picType = 0;







                if(fname.endsWith(".mpg") || fname.endsWith(".MPG")) {







                    picType = 5;







                } else if(fname.endsWith(".m2v") || fname.endsWith(".M2V")) {







                    picType = 6;







                }















                boolean b = FFmpegUtil.transfer(path, path+".jpg");//在文件名后直接加后缀，然后存到数据库中







                if(b) {







                    File snapFile = new File(path+".jpg");







                    BufferedImage bimg = ImageIO.read(snapFile);







                    int picWidth = bimg.getWidth();







                    int picHeight = bimg.getHeight();







                    //update db.







                    adResourceService.uploadVideo(resolution, resPath, picHeight, picWidth, (int)file.length(), picType, fsuffix, resPath+".jpg");







                } else {







                    log.error("generate snapshot file failed from " + path);







                }







            } else {







                log.error("file type invalid, we delete it...");







                f.delete();







            }







        }







    } catch (IOException e) {







        e.printStackTrace();







        log.error(e);







    }







}

实际场景中可以根据自己的需要进行修改。

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jquery文件上传控件 WebUploader

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