blueimp当前有没有使用Flask和jquery文件上传的示例？

我想知道目前是否有blueimp在flask框架中使用jquery文件上传插件的例子。如果有人有一些代码片段可以分享，我将不胜感激

他们的布局似乎很好，我可以添加一个文件，它预览良好。问题是，当我尝试去上传它时，我会遇到这样的错误： [12:47:58.690]POST[HTTP/1.0 400错误请求7ms]

在服务器端，我甚至没有一个可以打印出来的有效文件对象，所以我认为这里的问题在于代码的javascript部分（或者可能我在这方面也错了）。以下是我目前在模板端使用的相关代码：

<form action="{{ url_for('upload') }}" method="post" enctype="multipart/form-data">
    !-- The global progress bar -->
    <div id="progress" class="progress progress-success progress-striped">
    <div class="bar"></div>
    </div>
    <!-- The fileinput-button span is used to style the file input field as button -->
    <span class="btn btn-success fileinput-button">
    <i class="icon-plus icon-white"></i>
    <span>Add files...</span>
    <!-- The file input field used as target for the file upload widget -->
    <input id="fileupload" type="file" name="files[]" multiple>
    </span>
    <br><br>

    <!-- The container for the uploaded files -->
     <div id="files" class="files"></div>
</form>

<script type="text/javascript" src="{{ url_for('static', filename='assets/js/jquery.ui.widget.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='assets/js/jquery.iframe-transport.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='assets/js/jquery.fileupload.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='assets/js/jquery.fileupload-process.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='assets/js/jquery.fileupload-image.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='assets/js/jquery.fileupload-audio.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='assets/js/jquery.fileupload-video.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='assets/js/jquery.fileupload-validate.js') }}"></script>

<script>
/*jslint unparam: true, regexp: true */
/*global window, $ */
$(function () {
    'use strict';
    // Change this to the location of your server-side upload handler:
    var uploadButton = $('<button/>')
            .addClass('btn')
            .prop('disabled', true)
            .text('Processing...')
            .on('click', function () {
                var $this = $(this),
                    data = $this.data();
                $this
                    .off('click')
                    .text('Abort')
                    .on('click', function () {
                        $this.remove();
                        data.abort();
                    });
                data.submit().always(function () {
                    $this.remove();
                });
            });
    $('#fileupload').fileupload({
        url: '/upload',
        dataType: 'json',
        autoUpload: false,
        acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
        maxFileSize: 5000000, // 5 MB
        // Enable image resizing, except for Android and Opera,
        // which actually support image resizing, but fail to
        // send Blob objects via XHR requests:
        disableImageResize: /Android(?!.*Chrome)|Opera/
            .test(window.navigator.userAgent),
        previewMaxWidth: 100,
        previewMaxHeight: 100,
        previewCrop: true
    }).on('fileuploadadd', function (e, data) {
        data.context = $('<div/>').appendTo('#files');
        $.each(data.files, function (index, file) {
            var node = $('<p/>')
                    .append($('<span/>').text(file.name));
            if (!index) {
                node
                    .append('<br>')
                    .append(uploadButton.clone(true).data(data));
            }
            node.appendTo(data.context);
        });
    }).on('fileuploadprocessalways', function (e, data) {
        var index = data.index,
            file = data.files[index],
            node = $(data.context.children()[index]);

        if (file.preview) {
            node
                .prepend('<br>')
                .prepend(file.preview);
        }
        if (file.error) {
            node
                .append('<br>')
                .append(file.error);
        }
        if (index + 1 === data.files.length) {
            data.context.find('button')
                .text('Upload')
                .prop('disabled', !!data.files.error);
        }
    }).on('fileuploadprogressall', function (e, data) {
        var progress = parseInt(data.loaded / data.total * 100, 10);
        $('#progress .bar').css(
            'width',
            progress + '%'
        );
    }).on('fileuploaddone', function (e, data) {
        $.each(data.result.files, function (index, file) {
            var link = $('<a>')
                .attr('target', '_blank')
                .prop('href', file.url);
            $(data.context.children()[index])
                .wrap(link);
        });
    }).on('fileuploadfail', function (e, data) {
        $.each(data.result.files, function (index, file) {
            var error = $('<span/>').text(file.error);
            $(data.context.children()[index])
                .append('<br>')
                .append(error);
        });
    }).prop('disabled', !$.support.fileInput)
        .parent().addClass($.support.fileInput ? undefined : 'disabled');
});
</script>

---

将上载方法更改为：

@app.route('/upload', methods=['POST'])
def upload():
    try:
        files = request.files
        print files

        uploaded_files = _handleUpload(files)

        return jsonify({'files': uploaded_files})
    except:
        raise
        return jsonify({'status': 'error'})

---

这是一个大约8个月大的版本：谢谢，但是我在让jquery文件上传器的基本ui版本与flask很好地工作时遇到了一些问题。这个例子很好，但不幸的是，我没有用S3来设置它。我对此也有点陌生，所以这对我来说更像是一个学习曲线。请发布你的Flask

/upload

处理程序。添加了相关的上传处理程序。谢谢你，马克。

@app.route('/upload', methods=['POST'])
def upload():
    try:
        files = request.files
        print files

        uploaded_files = _handleUpload(files)

        return jsonify({'files': uploaded_files})
    except:
        raise
        return jsonify({'status': 'error'})