php - 从ajax调用上传blueimp文件

Question

也许这是错误的构建方法，但我的网页上有很多信息，所以我一直在使用 Ajax 根据用户的需要提取位。我想要检索的元素之一是 blueimp 文件 uploader 。除了我在尝试添加文件时从控制台收到的消息外，一切似乎都很好。

未捕获的类型错误:无法读取未定义的属性“parseMetaData”

正在处理的图像出现，但随后……什么也没有。

如果有人能告诉我为什么会出现此错误，以及如何修复它，我将不胜感激。

Ajax 写入屏幕的内容

在标题中

<!-- Bootstrap styles -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<!-- Generic page styles -->
<link rel="stylesheet" href="fileUpload/css/style.css">
<!-- blueimp Gallery styles 
<link rel="stylesheet" href="//blueimp.github.io/Gallery/css/blueimp-gallery.min.css">-->
<!-- CSS to style the file input field as button and adjust the Bootstrap progress bars -->
<link rel="stylesheet" href="fileUpload/css/jquery.fileupload.css">
<link rel="stylesheet" href="fileUpload/css/jquery.fileupload-ui.css">
 <!-- CSS adjustments for browsers with JavaScript disabled -->
<noscript><link rel="stylesheet" href="fileUpload/css/jquery.fileupload-noscript.css"></noscript>
<noscript><link rel="stylesheet" href="fileUpload/css/jquery.fileupload-ui-noscript.css"></noscript>

Ajax 输出

 
<!-- The file upload form used as target for the file upload widget -->
<form id="fileupload" action="//jquery-file-upload.appspot.com/" method="POST" enctype="multipart/form-data">
    <!-- Redirect browsers with JavaScript disabled to the origin page -->
    <noscript><input type="hidden" name="redirect" value="https://blueimp.github.io/jQuery-File-Upload/"></noscript>
    <!-- The fileupload-buttonbar contains buttons to add/delete files and start/cancel the upload -->
    <div class="row fileupload-buttonbar">
        <div class="col-lg-7">
            <!-- The fileinput-button span is used to style the file input field as button -->
            <span class="btn btn-success fileinput-button">
                <i class="glyphicon glyphicon-plus"></i>
                <span>Add files...</span>
                <input type="file" name="files[]" multiple>
            </span>
            <button type="submit" class="btn btn-primary start">
                <i class="glyphicon glyphicon-upload"></i>
                <span>Start upload</span>
            </button>
            <button type="reset" class="btn btn-warning cancel">
                <i class="glyphicon glyphicon-ban-circle"></i>
                <span>Cancel upload</span>
            </button>
            <button type="button" class="btn btn-danger delete">
                <i class="glyphicon glyphicon-trash"></i>
                <span>Delete</span>
            </button>
            <input type="checkbox" class="toggle">
            <!-- The global file processing state -->
            <span class="fileupload-process"></span>
        </div>
        <!-- The global progress state -->
        <div class="col-lg-5 fileupload-progress fade">
            <!-- The global progress bar -->
            <div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100">
                <div class="progress-bar progress-bar-success" style="width:0%;"></div>
            </div>
            <!-- The extended global progress state -->
            <div class="progress-extended"> </div>
        </div>
    </div>
    <!-- The table listing the files available for upload/download -->
    <table role="presentation" class="table table-striped"><tbody class="files"></tbody></table>
</form>

    

<!-- The template to display files available for upload -->
<script id="template-upload" type="text/x-tmpl">
{% for (var i=0, file; file=o.files[i]; i++) { %}
    <tr class="template-upload fade">
        <td>
            <span class="preview"></span>
        </td>
        <td>
            <p class="name">{%=file.name%}</p>
            <strong class="error text-danger"></strong>
        </td>
        <td>
            <p class="size">Processing...</p>
            <div class="progress progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><div class="progress-bar progress-bar-success" style="width:0%;"></div></div>
        </td>
        <td>
            {% if (!i && !o.options.autoUpload) { %}
                <button class="btn btn-primary start" disabled>
                    <i class="glyphicon glyphicon-upload"></i>
                    <span>Start</span>
                </button>
            {% } %}
            {% if (!i) { %}
                <button class="btn btn-warning cancel">
                    <i class="glyphicon glyphicon-ban-circle"></i>
                    <span>Cancel</span>
                </button>
            {% } %}
        </td>
    </tr>
{% } %}
</script>
<!-- The template to display files available for download -->
<script id="template-download" type="text/x-tmpl">
{% for (var i=0, file; file=o.files[i]; i++) { %}
    <tr class="template-download fade">
        <td>
            <span class="preview">
                {% if (file.thumbnailUrl) { %}
                    <a href="{%=file.url%}" title="{%=file.name%}" download="{%=file.name%}" data-gallery><img src="{%=file.thumbnailUrl%}"></a>
                {% } %}
            </span>
        </td>
        <td>
            <p class="name">
                {% if (file.url) { %}
                    <a href="{%=file.url%}" title="{%=file.name%}" download="{%=file.name%}" {%=file.thumbnailUrl?'data-gallery':''%}>{%=file.name%}</a>
                {% } else { %}
                    <span>{%=file.name%}</span>
                {% } %}
            </p>
            {% if (file.error) { %}
                <div><span class="label label-danger">Error</span> {%=file.error%}</div>
            {% } %}
        </td>
        <td>
            <span class="size">{%=o.formatFileSize(file.size)%}</span>
        </td>
        <td>
            {% if (file.deleteUrl) { %}
                <button class="btn btn-danger delete" data-type="{%=file.deleteType%}" data-url="{%=file.deleteUrl%}"{% if (file.deleteWithCredentials) { %} data-xhr-fields='{"withCredentials":true}'{% } %}>
                    <i class="glyphicon glyphicon-trash"></i>
                    <span>Delete</span>
                </button>
                <input type="checkbox" name="delete" value="1" class="toggle">
            {% } else { %}
                <button class="btn btn-warning cancel">
                    <i class="glyphicon glyphicon-ban-circle"></i>
                    <span>Cancel</span>
                </button>
            {% } %}
        </td>
    </tr>
{% } %}
</script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- The jQuery UI widget factory, can be omitted if jQuery UI is already included -->
<script src="fileUpload/js/vendor/jquery.ui.widget.js"></script>
<!-- The Templates plugin is included to render the upload/download listings -->
<script src="//blueimp.github.io/JavaScript-Templates/js/tmpl.min.js"></script>
<!-- The Load Image plugin is included for the preview images and image resizing functionality -->
<script src="//blueimp.github.io/JavaScript-Load-Image/js/load-image.all.min.js"></script>
<!-- The Canvas to Blob plugin is included for image resizing functionality -->
<script src="//blueimp.github.io/JavaScript-Canvas-to-Blob/js/canvas-to-blob.min.js"></script>
<!-- Bootstrap JS is not required, but included for the responsive demo navigation -->
<script src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<!-- blueimp Gallery script -->
<script src="//blueimp.github.io/Gallery/js/jquery.blueimp-gallery.min.js"></script>
<!-- The Iframe Transport is required for browsers without support for XHR file uploads -->
<script src="fileUpload/js/jquery.iframe-transport.js"></script>
<!-- The basic File Upload plugin -->
<script src="fileUpload/js/jquery.fileupload.js"></script>
<!-- The File Upload processing plugin -->
<script src="fileUpload/js/jquery.fileupload-process.js"></script>
<!-- The File Upload image preview & resize plugin -->
<script src="fileUpload/js/jquery.fileupload-image.js"></script>
<!-- The File Upload audio preview plugin -->
<script src="fileUpload/js/jquery.fileupload-audio.js"></script>
<!-- The File Upload video preview plugin -->
<script src="fileUpload/js/jquery.fileupload-video.js"></script>
<!-- The File Upload validation plugin -->
<script src="fileUpload/js/jquery.fileupload-validate.js"></script>
<!-- The File Upload user interface plugin -->
<script src="fileUpload/js/jquery.fileupload-ui.js"></script>
<!-- The main application script -->
<script src="fileUpload/js/main.js"></script>
<!-- The XDomainRequest Transport is included for cross-domain file deletion for IE 8 and IE 9 -->
<!--[if (gte IE 8)&(lt IE 10)]>
<script src="js/cors/jquery.xdr-transport.js"></script>
<![endif]-->

希望这就是您所需要的。

仔细检查后，我认为这可能是导致我的一些问题的部分:

loadImageMetaData: function (data, options) {
                if (options.disabled) {
                    return data;
                }
                var that = this,
                    dfd = $.Deferred();
                loadImage.parseMetaData(data.files[data.index], function (result) {
                    $.extend(data, result);
                    dfd.resolveWith(that, [data]);
                }, options);
                return dfd.promise();
            },

Answer 1

确保您没有在模态或类似模式中加载 load-image-all，这是我的问题。无论我等了多久，90% 的时间我都会得到:

Uncaught TypeError: Cannot read property 'parseMetaData' of undefined

另外 10% 的时间它奇迹般地起作用了......

所以，再一次 - 将脚本放在主模板上是我的解决办法。