Question

我正在尝试在我的网站上添加视频文件上传功能：

我正在关注此处发布的示例：http://davidsonsousa.net/en/post/how-to-upload-a-file-using-mvc-3-and-ajax

我已经在我的MVC项目中包含了所有必需的库。在我看来，我包括了以下标题：

<head>
    <title>Videos </title><!-- Bootstrap core CSS -->
        <link href="~/Scripts/jquery-lib/jquery.fileupload.css" rel="stylesheet" />
       <script src="/Scripts/jquery-lib/jquery-1.9.1.min.js" type="text/javascript"></script>

        <script src="/Scripts/jquery-lib/jquery.ui.widget.js" type="text/javascript"></script>
    <script src="/Scripts/jquery-lib/bootstrap.min.js" type="text/javascript"></script>

    <script src="/Scripts/jquery-lib/jquery.fileupload.js" type="text/javascript"></script>

    <script type="text/javascript">
        $(document).ready(function () {
            $('#fileupload').fileupload({
                dataType: 'json',
                url: '/Videos/UploadVideoFile/?isrc=' + 'HGTGHTGTYTGT',
                autoUpload: true,
                done: function (e, data) {
                    $('.file_name').html(data.result.name);
                    $('.file_type').html(data.result.type);
                    $('.file_size').html(data.result.size);
                }
            }).on('fileuploadprogressall', function (e, data) {
                var progress = parseInt(data.loaded / data.total * 100, 10);
                $('.progress .progress-bar').css('width', progress + '%');
            });
        });
</script>
</head>

当我加载网页时，我收到以下错误：

未捕获类型错误undefined不是函数在上传脚本中指向此部分：$（'＃fileupload'）。fileupload（{

我也得到了错误：

Uncaught TypeError: undefined is not a function add:96
Uncaught ReferenceError: jQuery is not defined jquery.ui.widget.js:18
Uncaught ReferenceError: jQuery is not defined bootstrap.min.js:6
Uncaught TypeError: Cannot read property 'support' of undefined jquery.fileupload.js:32
Uncaught ReferenceError: $ is not defined add:95
Uncaught TypeError: Cannot read property 'support' of undefined jquery.fileupload.js:32
Uncaught ReferenceError: $ is not defined

Answer 1

似乎没有加载jQuery。打开浏览器的调试器（F-12）并查看NETWORK选项卡。重新加载页面并查找404错误。你可能走错路。

Javascript未捕获类型错误undefined不是一个函数

1 个答案: