asp.net mvc 多图片上传

插件使用是 webuploader，可自己网上下载

点击按钮打开一个新页面进行多图片上传，最后返回结果

这里相当打开一个新页面  传递参数，实际打开新页面根据自己项目进行修改

下面是实现图片上传所需的HTML以及js

<link rel="shortcut icon" href="images/favicon.ico">
<link href="~/Scripts/webuploader/css/bootstrap.min.css" rel="stylesheet" />
<link href="~/Scripts/webuploader/css/font-awesome.min.css" rel="stylesheet" />
<link href="~/Scripts/webuploader/css/style.css" rel="stylesheet" />
<link href="~/Scripts/webuploader/css/syntax.css" rel="stylesheet" />
<link href="~/Scripts/webuploader/css/webuploader.css" rel="stylesheet" />
<link href="~/Scripts/webuploader/css/demo.css" rel="stylesheet" />
<script type="text/javascript">

    //编辑/新增提交
    var ID = $.request("ID");
    var IMGID = $.request("IMGID");
    function submitForm() {
        //获取的ID
        var hd_id = $("#hd_id").val();
        if (hd_id != "") {
            top.Form.$('#' + ID).val(hd_id);
            top.Form.$('#' + IMGID).attr("src", hd_id)
            $.modalClose();
        } else {
            alert("图片路径不能为空！");
        }
    }
</script>

<div id="post-container" class="container">
    <input type="hidden" id="hd_id" />
    <div id="uploader" class="wu-example">
        <div class="queueList">
            <div id="dndArea" class="placeholder">
                <div id="filePicker"></div>
                <p>或将照片拖到这里，单次最多可选1张</p>
            </div>
        </div>
        <div class="statusBar" style="display:none;">
            <div class="progress">
                <span class="text">0%</span>
                <span class="percentage"></span>
            </div><div class="info"></div>
            <div class="btns">
                <div id="filePicker2"></div><div class="uploadBtn">开始上传</div>
            </div>
        </div>
    </div>
</div>
<script type="text/javascript">
    // 添加全局站点信息
    var BASE_URL = '../webuploader';
    // 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/jpg,image/jpeg,image/png,image/gif'   //修改这行
            },

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

            disableGlobalDnd: true,

            chunked: true,

            server: '/WebUpload/FileUpLoad/UpLoadProcess',//后台方法
            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，

        //因为此处只需要添加一张图片  如果需要多次添加可以去掉注释


        //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 {
                $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) + ')');
                }


            });

            $li.appendTo($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) {
            $("#hd_id").val(data.newfilepath);
            // 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();
        });
    });
</script>
<script src="~/Scripts/webuploader/js/webuploader.js"></script>

//=============controller层实现代码========================

 public ActionResult UpLoadProcess(string id, string name, string type, string lastModifiedDate, int size, HttpPostedFileBase file)
        {
            string filePathName = string.Empty;
            string dateFile = DateTime.Now.ToString("yyyyMMdd");
            string NowPath = "/Upload/" + dateFile + "/" + "MapSet/" + OperatorProvider.Provider.GetCurrent().UserCode;
            string localPath = Server.MapPath(NowPath);
            //判断文件夹是否存在
            if (!System.IO.Directory.Exists(localPath))
            {//不存在则创建
                System.IO.Directory.CreateDirectory(localPath);
            }
            if (Request.Files.Count == 0)
            {
                return Json(new { jsonrpc = 2.0, error = new { code = 102, message = "保存失败" }, id = "id" });
            }

            string ex = Path.GetExtension(file.FileName);
            filePathName = Guid.NewGuid().ToString("N") + ex;

            file.SaveAs(Path.Combine(localPath, filePathName));

            return Json(new
            {
                jsonrpc = "2.0",
                id = id,
                name = filePathName,
                newfilepath = NowPath + "/" + filePathName,
                filePath = dateFile
            });

        }

======================全部代码结束=====================================