小编swa*_*her的帖子

Dropzone JS with Flask：分块并行上传

我正在尝试使用 dropzone js 和 Flask 作为后端。拖放区配置：

<form method="POST" action='/process_chunk' class="dropzone dz-clickable"
     id="dropper" enctype="multipart/form-data">
</form>

<script type="application/javascript">
   Dropzone.options.dropper = {
       {# https://gitlab.com/meno/dropzone/wikis/faq#chunked-uploads #}
       paramName: 'file',
       acceptedFiles: '.csv',
       chunking: true,
       forceChunking: true,
       chunkSize: 100000, // bytes
       parallelChunkUploads: true,
       maxFilesize: 1025, // megabytes
</script>

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我的烧瓶后端如下所示

@app.route('/process_chunk', methods=['POST'])
def process_chunk():
    current_chunk = int(request.form['dzchunkindex'])

    file = request.files['file']
    save_path = os.path.join(app.config['DATA_DIR'], file.filename)

    try:
        with open(save_path, 'ab+') as f:
            # Goto the offset, aka after the chunks we already wrote
            f.seek(int(request.form['dzchunkbyteoffset']))
            f.write(file.stream.read())
    except OSError:
        # log.exception will …

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python upload chunked flask dropzone.js

swa*_*her

lucky-day

5
推荐指数

1
解决办法

1396
查看次数

如何使用javascipt切换Bootstrap 5选项卡（按钮版本）

我想对开关选项卡进行编程（使用 bootstrap 5）。Bootsrap 文档说：

作为最佳实践，我们建议使用选项卡元素，因为这些是触发动态更改的控件，而不是导航到新页面或位置的链接。

所以我想使用按钮而不是链接。代码：

$("#mybut").click(function() {
  var sel = document.querySelector('#nav-tab-manager')
  bootstrap.Tab.getInstance(sel).show()
})

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<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<nav>

<div class="nav nav-tabs" id="nav-tab" role="tablist">
  <button class="nav-link active" id="nav-tabs-order" data-bs-toggle="tab" data-bs-target="#tabs-1" type="button" role="tab" aria-controls="tabs-1" aria-selected="true">Orders
  </button>
  <button class="nav-link" id="nav-tab-manager" data-bs-toggle="tab" data-bs-target="#tabs-2" type="button" role="tab" aria-controls="tabs-2" aria-selected="false">Managers
  </button>
  </div>
</nav>


<div class="tab-content" id="myTabContent">
  <div class="tab-pane fade show active" id="tabs-1" role="tabpanel" aria-labelledby="tabs-tab1">
    Orders
  </div>
  <div class="tab-pane fade" id="tabs-2" role="tabpanel" aria-labelledby="tabs-2">
    Managers
  </div>
</div>

<button type="button" class="btn btn-primary" id="mybut">Want switch to manager</button> …

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javascript tabs button twitter-bootstrap bootstrap-5

swa*_*her

2021 08-06

1
推荐指数

1
解决办法

2611
查看次数