python - 如何在 Django 中上传文件并显示进度条？

Question

我编写了如下代码在 Django 中上传文件:

def upload(request):
if request.method == 'POST':
    form = UploadFileForm(request.POST, request.FILES)
    if form.is_valid():
        handle_uploaded_file(request.FILES['file'])
        return render_to_response('uploadsuccess.html')
else:
    form = UploadFileForm()  
return render_to_response('upload.html', {'form': form})


def handle_uploaded_file(f):
    filename = "/media/Data/static/Data/" + f.name
    destination = open(filename, 'wb+')
    for chunk in f.chunks():
        destination.write(chunk)
    destination.close()

代码对我来说工作正常。但是，我不知道应该如何修改此代码以在客户端显示进度条。

我的 html 页面如下所示:

{% extends "index_base.html" %}

{% block content %}
<script src="/media/js/functions.js" type="text/javascript"></script>
<script  src="/media/js/jquery.js" type="text/javascript">
    </script>
<div id="main_container">

{% include "includes/nav.html"  %}

<!------- Main Contents  ---------->
    <div id="contents_holder">
        <div id="contents">
            <div id="c_banner">
                    <span class="main_title">Upload File</span>
                </div>
            <div id="setting">
            <form name="post" action="/upload.psp/" method="post" enctype="multipart/form-data">
                <h2>Upload File</h2></br>
                <p>{{ form.file.label_tag }}&nbsp;&nbsp;{{ form.file }}</p></br>
                &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                <input type="submit" value="Upload" name="uploadButton" />
                &nbsp;&nbsp;<input type="button" value="Cancel" name="cancelUploadButton" onclick ="cancelUploadClicked()"/>
                <input type="hidden" value="title" name="title" id="title" />
            </form> 
                </div>

        </div>
    </div>
</div>

<!------- Main Contents  Finished ---------->
{% endblock %}

谁能帮我把上传进度条和这段代码整合起来？

提前致谢。

Answer 1

我认为您必须使用 Ajax 发送异步请求。

这里也讨论了这个话题:File upload progress bar with jquery在这里:How can I upload files asynchronously?