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： 
 
这个样子是默认的效果。

 
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。

 
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>



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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 );



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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);





    }





}



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实际场景中可以根据自己的需要进行修改。