webUploader 的使用

地址：http://fex.baidu.com/webuploader/demo.html

这个主要是扒的demo

引用<link href="~/Scripts/webuploader/webuploader.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="~/Scripts/webuploader/webuploader.js"></script>

示例：

html 页面代码

<div id="uploader" class="wu-example">
                                <div class="queueList">
                                    <div id="dndArea" class="placeholder">
                                        <div id="filePicker" class="webuploader-container"><div class="webuploader-pick">点击选择图片</div><div id="rt_rt_1bgaoa8gj1agt136q15n7a011piv1" style="position: absolute; top: 0px; left: 448px; width: 168px; height: 44px; overflow: hidden; bottom: auto; right: auto;"><input type="file" name="file" class="webuploader-element-invisible" multiple="multiple" accept="image/*"><label style="opacity: 0; width: 100%; height: 100%; display: block; cursor: pointer; background: rgb(255, 255, 255);"></label></div></div>
                                        <p>或将照片拖到这里，单次最多可选10张</p>
                                    </div>
                                    <ul class="filelist"></ul>
                                </div>
                                <div class="statusBar" style="display:none;">
                                    <div class="progress" style="display: none;">
                                        <span class="text">0%</span>
                                        <span class="percentage" style="width: 0%;"></span>
                                    </div><div class="info">共0张（0B），已上传0张</div>
                                    <div class="btns">
                                        <div id="filePicker2" class="webuploader-container"><div class="webuploader-pick">继续添加</div><div id="rt_rt_1bgaoa8gp1spq1ea91li71tf816oh6" style="position: absolute; top: 0px; left: 0px; width: 1px; height: 1px; overflow: hidden;"><input type="file" name="file" class="webuploader-element-invisible" multiple="multiple" accept="image/*"><label style="opacity: 0; width: 100%; height: 100%; display: block; cursor: pointer; background: rgb(255, 255, 255);"></label></div></div><div class="uploadBtn state-pedding">开始上传</div>
                                    </div>
                                </div>
                            </div>

js代码

 // 添加全局站点信息
    var BASE_URL = '~/Scripts/webuploader';
    jQuery(function () {
        var $ = jQuery,    // just in case. Make sure it's not an other libaray.

            $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'),
             // 文件放大查看信息。
          //  $BigImg = $statusBar.find('.bigimgview'),
             // 文件放大查看信息。
           // $DeleteImg = $statusBar.find('.deleteimg'),
            // 上传按钮
            $upload = $wrap.find('.uploadBtn'),

            // 没选择文件之前的内容。
            $placeHolder = $wrap.find('.placeholder'),

            // 总体进度条
            $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 = {},

            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()) {
            alert('Web Uploader 不支持您的浏览器！如果你使用的是IE浏览器，请尝试升级 flash 播放器');
            throw new Error('WebUploader does not support the browser you are using.');
        }

        // 实例化
        uploader = WebUploader.create({
            pick: {
                id: '#filePicker',
                label: '点击选择图片'
            },
            dnd: '#uploader .queueList',
            paste: document.body,

            accept: {
                title: 'Images',
                extensions: 'gif,jpg,jpeg,bmp,png',
                mimeTypes: 'image/*'
            },

            // swf文件路径
            swf: BASE_URL + '/js/Uploader.swf',

            disableGlobalDnd: true,

            chunked: true,

            server: '/image/UpImage',
            deleteServer: '/image/DelImage',
            fileNumLimit: 10,
            fileSizeLimit: 20 * 1024 * 1024,    // 200 M
            fileSingleSizeLimit: 2 * 1024 * 1024    // 50 M
        });

        // 添加“添加文件”的按钮，
        uploader.addButton({
            id: '#filePicker2',
            label: '继续添加'
        });

        // 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) {
                    if (error) {
                        $wrap.text('不能预览');
                        return;
                    }

                    var img = $('<img src="' + src + '">');
                    $wrap.empty().append(img);
                }, 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XX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.parent().removeClass('filled');
                    $queue.hide();
                    $statusBar.addClass('element-invisible');
                    uploader.refresh();
                    break;

                case 'ready':
                    $placeHolder.addClass('element-invisible');
                    $('#filePicker2').removeClass('element-invisible');
                    $queue.parent().addClass('filled');
                    $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();
                    $upload.text('开始上传').addClass('disabled');

                    stats = uploader.getStats();
                    if (stats.successNum && !stats.uploadFailNum) {
                        setState('finish');
                        return;
                    }
                    break;
                case 'finish':
                    stats = uploader.getStats();
                    // alert(stats);
                    console.log("状态",stats)
                    if (stats.successNum) {
                        // alert('上传成功');
                    } 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;
            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) {
            alert('Eroor: ' + code);
        };

        $upload.on('click', function () {
            if ($(this).hasClass('disabled')) {
                return false;
            }
            console.log("上传...");
            if (state === 'ready') {
                uploader.upload();
                console.log("上传成功");
            } else if (state === 'paused') {
                uploader.upload();
                console.log("上传继续");
            } else if (state === 'uploading') {
                uploader.stop();
                console.log("上传停止");
            }
        });

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

        $info.on('click', '.ignore', function () {
            alert('todo');
        });

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

        // 文件上传成功，给item添加成功class, 用样式标记上传成功。
        uploader.on('uploadSuccess', function( file,data ) {
            // var uploaderId = '#rt_' + file.source.ruid;
            // console.log(uploaderId);
            console.log(file.id);
            console.log(data);
            var $btns = null;
            if(data.Code==1)
            {
                $( '#'+file.id ).addClass('upload-state-done');

                $('#'+file.id).find("img").parent().append('<a href="'+ data.savePath +'" target="_blank"></a>')
                $('#'+file.id).find(".imgWrap").find("a").append($('#'+file.id).find(".imgWrap").find("img"));

                $btns = $('<div class="file-panel">' +
                        '<span class="cancel">删除</span>' +
                        '</div>');

                $btns.on('click', 'span', function () {
                    var index = $(this).index(),
                        deg;

                    switch (index) {
                        case 0:
                            $.post("/image/DelImage",{"savefile":data.savePath},function(rlt){
                                if(rlt)
                                {
                                    uploader.removeFile(file);
                                }else
                                {
                                    console.log("删除失败");
                                }
                            })
                            return;
                    }

                });

                $( '#'+file.id ).append($btns);

                $( '#'+file.id ).on('mouseenter', function () {
                    $btns.stop().animate({ height: 30 });
                });

                $( '#'+file.id ).on('mouseleave', function () {
                    $btns.stop().animate({ height: 0 });
                });

            }
            else if(data.Code==-1)
            {
                var $li = $( '#'+file.id ),
                $error = $li.find('div.error');

                // 避免重复创建
                if ( !$error.length ) {
                    $error = $('<div class="error"></div>').appendTo( $li );
                }
                $error.text('上传失败');
            }

        });

        // 文件上传失败，显示上传出错。
        uploader.on( 'uploadError', function( file ) {
            var $li = $( '#'+file.id ),
                $error = $li.find('div.error');

            // 避免重复创建
            if ( !$error.length ) {
                $error = $('<div class="error"></div>').appendTo( $li );
            }
            $error.text('上传失败');
        });

        // 完成上传完了，成功或者失败，先删除进度条。
        uploader.on( 'uploadComplete', function( file ) {
            $( '#'+file.id ).find('.progress').remove();
        });
    });

css

#container {
    color: #838383;
    font-size: 12px;
}

#uploader .queueList {
    margin: 20px;
    border: 3px dashed #e6e6e6;
}
#uploader .queueList.filled {
    padding: 17px;
    margin:;
    border: 3px dashed transparent;
}
#uploader .queueList.webuploader-dnd-over {
    border: 3px dashed #999999;
}

#uploader p {margin:;}

.element-invisible {
    position: absolute !important;
    clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
    clip: rect(1px,1px,1px,1px);
}

#uploader .placeholder {
    min-height: 150px;
    padding-top: 178px;
    text-align: center;
    background: url(../images/image.png) center 93px no-repeat;
    color: #cccccc;
    font-size: 18px;
    position: relative;
}

#uploader .placeholder .webuploader-pick {
    font-size: 18px;
    background: #00b7ee;
    border-radius: 3px;
    line-height: 44px;
    padding: 0 30px;
    *width: 120px;
    color: #fff;
    display: inline-block;
    margin: 0 auto 20px auto;
    cursor: pointer;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}

#uploader .placeholder .webuploader-pick-hover {
    background: #00a2d4;
}

#uploader .placeholder .flashTip {
    color: #666666;
    font-size: 12px;
    position: absolute;
    width: 100%;
    text-align: center;
    bottom: 20px;
}
#uploader .placeholder .flashTip a {
    color: #0785d1;
    text-decoration: none;
}
#uploader .placeholder .flashTip a:hover {
    text-decoration: underline;
}

#uploader .filelist {
    list-style: none;
    margin:;
    padding:;
}

#uploader .filelist:after {
    content: '';
    display: block;
    width:;
    height:;
    overflow: hidden;
    clear: both;
}

#uploader .filelist li {
    width: 110px;
    height: 110px;
    background: url(../images/bg.png) no-repeat;
    text-align: center;
    margin: 0 8px 20px 0;
    position: relative;
    display: inline;
    float: left;
    overflow: hidden;
    font-size: 12px;
}

#uploader .filelist li p.log {
    position: relative;
    top: -45px;
}

#uploader .filelist li p.title {
    position: absolute;
    top:;
    left:;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow : ellipsis;
    top: 5px;
    text-indent: 5px;
    text-align: left;
}

#uploader .filelist li p.progress {
    position: absolute;
    width: 100%;
    bottom:;
    left:;
    height: 8px;
    overflow: hidden;
    z-index:;
    margin:;
    border-radius:;
    background: none;
    -webkit-box-shadow: 0 0 0;
}
#uploader .filelist li p.progress span {
    display: none;
    overflow: hidden;
    width:;
    height: 100%;
    background: #1483d8 url(../images/progress.png) repeat-x;

    -webit-transition: width 200ms linear;
    -moz-transition: width 200ms linear;
    -o-transition: width 200ms linear;
    -ms-transition: width 200ms linear;
    transition: width 200ms linear;

    -webkit-animation: progressmove 2s linear infinite;
    -moz-animation: progressmove 2s linear infinite;
    -o-animation: progressmove 2s linear infinite;
    -ms-animation: progressmove 2s linear infinite;
    animation: progressmove 2s linear infinite;

    -webkit-transform: translateZ(0);
}

@-webkit-keyframes progressmove {
    0% {
       background-position: 0 0;
    }
    100% {
       background-position: 17px 0;
    }
}
@-moz-keyframes progressmove {
    0% {
       background-position: 0 0;
    }
    100% {
       background-position: 17px 0;
    }
}
@keyframes progressmove {
    0% {
       background-position: 0 0;
    }
    100% {
       background-position: 17px 0;
    }
}

#uploader .filelist li p.imgWrap {
    position: relative;
    z-index:;
    line-height: 110px;
    vertical-align: middle;
    overflow: hidden;
    width: 110px;
    height: 110px;

    -webkit-transform-origin: 50% 50%;
    -moz-transform-origin: 50% 50%;
    -o-transform-origin: 50% 50%;
    -ms-transform-origin: 50% 50%;
    transform-origin: 50% 50%;

    -webit-transition: 200ms ease-out;
    -moz-transition: 200ms ease-out;
    -o-transition: 200ms ease-out;
    -ms-transition: 200ms ease-out;
    transition: 200ms ease-out;
}

#uploader .filelist li img {
    width: 100%;
}

#uploader .filelist li p.error {
    background: #f43838;
    color: #fff;
    position: absolute;
    bottom:;
    left:;
    height: 28px;
    line-height: 28px;
    width: 100%;
    z-index:;
}

#uploader .filelist li .success {
    display: block;
    position: absolute;
    left:;
    bottom:;
    height: 40px;
    width: 100%;
    z-index:;
    background: url(../images/success.png) no-repeat right bottom;
}

#uploader .filelist div.file-panel {
    position: absolute;
    height:;
    filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#80000000', endColorstr='#80000000')\0;
    background: rgba( 0, 0, 0, 0.5 );
    width: 100%;
    top:;
    left:;
    overflow: hidden;
    z-index:;
}

#uploader .filelist div.file-panel span {
    width: 24px;
    height: 24px;
    display: inline;
    float: right;
    text-indent: -9999px;
    overflow: hidden;
    background: url(../images/icons.png) no-repeat;
    margin: 5px 1px 1px;
    cursor: pointer;
}

#uploader .filelist div.file-panel span.rotateLeft {
    background-position: 0 -24px;
}
#uploader .filelist div.file-panel span.rotateLeft:hover {
    background-position: 0 0;
}

#uploader .filelist div.file-panel span.rotateRight {
    background-position: -24px -24px;
}
#uploader .filelist div.file-panel span.rotateRight:hover {
    background-position: -24px 0;
}

#uploader .filelist div.file-panel span.cancel {
    background-position: -48px -24px;
}
#uploader .filelist div.file-panel span.cancel:hover {
    background-position: -48px 0;
}

#uploader .statusBar {
    height: 63px;
    border-top: 1px solid #dadada;
    padding: 0 20px;
    line-height: 63px;
    vertical-align: middle;
    position: relative;
}

#uploader .statusBar .progress {
    border: 1px solid #1483d8;
    width: 198px;
    background: #fff;
    height: 18px;
    position: relative;
    display: inline-block;
    text-align: center;
    line-height: 20px;
    color: #6dbfff;
    position: relative;
    margin: 0 10px 0 0;
}
#uploader .statusBar .progress span.percentage {
    width:;
    height: 100%;
    left:;
    top:;
    background: #1483d8;
    position: absolute;
}
#uploader .statusBar .progress span.text {
    position: relative;
    z-index:;
}

#uploader .statusBar .info {
    display: inline-block;
    font-size: 14px;
    color: #666666;
}

#uploader .statusBar .btns {
    position: absolute;
    top: 10px;
    right: 20px;
    line-height: 40px;
}

#filePicker2 {
    display: inline-block;
    float: left;
}

#uploader .statusBar .btns .webuploader-pick,
#uploader .statusBar .btns .uploadBtn,
#uploader .statusBar .btns .uploadBtn.state-uploading,
#uploader .statusBar .btns .uploadBtn.state-paused {
    background: #ffffff;
    border: 1px solid #cfcfcf;
    color: #565656;
    padding: 0 18px;
    display: inline-block;
    border-radius: 3px;
    margin-left: 10px;
    cursor: pointer;
    font-size: 14px;
    float: left;
}
#uploader .statusBar .btns .webuploader-pick-hover,
#uploader .statusBar .btns .uploadBtn:hover,
#uploader .statusBar .btns .uploadBtn.state-uploading:hover,
#uploader .statusBar .btns .uploadBtn.state-paused:hover {
    background: #f0f0f0;
}

#uploader .statusBar .btns .uploadBtn {
    background: #00b7ee;
    color: #fff;
    border-color: transparent;
}
#uploader .statusBar .btns .uploadBtn:hover {
    background: #00a2d4;
}

#uploader .statusBar .btns .uploadBtn.disabled {
    pointer-events: none;
    opacity: 0.6;
}

后台 c# 代码

        public ActionResult UpImage(HttpPostedFileBase file)
        {
            if (file == null || file.ContentLength == )
            {
                var result = new { Code = -, Message = "文件为空", fileName = file.FileName, savePath = "", size = file.ContentLength };
                return Json(result, JsonRequestBehavior.AllowGet);
            }

var r=false;
//这里上传图片，返回图片存储地址
var filepath="";
                if (r)
                {
                    var result = new { Code = , Message = "操作成功", fileName = file.FileName, savePath = filepath, size = file.ContentLength };
                    return Json(result, JsonRequestBehavior.AllowGet);
            }
            else
            {
                var result = new { Code = -, Message = "上传失败", fileName = file.FileName, savePath = filepath, size = file.ContentLength };
                return Json(result, JsonRequestBehavior.AllowGet);
            }

        }

        [HttpPost]
        public ActionResult DelImage( string savefile)
        {

                var r;
//删除图片操作
                if(r)
                {
                    return Json(true, JsonRequestBehavior.AllowGet);
                }

            }
            return Json(false, JsonRequestBehavior.AllowGet);
        }