<p>由于现代浏览器的局限性,我决定使用JSTree作为解决方案。而且效果很好。它具有树状结构浏览器。该结构是将文件夹作为JSON输出的结果。您还可以添加搜索栏,以便用户只需键入要搜索的文件夹名。<br/>
请参见<a href="https://www.jstree.com/" rel="nofollow">JSTree https://www.jstree.com/</a></p>
<p><strong>如何用烧瓶实现这一点</strong></p>
<p><strong>HTML/JS:</strong></p>
<pre><code> <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css">
<div>
<input class="search-input form-control" placeholder="Search for folder"></input>
</div>
<script id="jstree1" name="jstree1">
/*Search and JS Folder Tree*/
$(function () {
$(".search-input").keyup(function () {
var searchString = $(this).val();
console.log(searchString);
$('#container').jstree('search', searchString);
});
$('#container').jstree({
'core': {
"themes": {
"name": "default"
, "dots": true
, "icons": true
}
, 'data': {
'url': "static/JSONData.json"
, 'type': 'GET'
, 'dataType': 'JSON'
}
}
, "search": {
"case_insensitive": true
, "show_only_matches": true
}
, "plugins": ["search"]
});
});
{ /* - THIS IS FOLDER SELECTOR FOR ID "folderout" - */
$("#container").on("select_node.jstree", function (evt, data) {
var number = data.node.text
document.getElementById("folderout").value = number;
});
</code></pre>
<p><strong>在Flask/WTForms中</strong>调用id“folderout”。这将在用户单击文件夹时返回WTForms的路径。在</p>
^{pr2}$
<p><strong>使用Python创建JSON JStree文件:</strong></p>
<pre><code>import os
# path : string to relative or absolute path to be queried
# subdirs: tuple or list containing all names of subfolders that need to be
# present in the directory
def all_dirs_with_subdirs(path, subdirs):
# make sure no relative paths are returned, can be omitted
path = os.path.abspath(path)
result = []
for root, dirs, files in os.walk(path):
if all(subdir in dirs for subdir in subdirs):
result.append(root)
return result
def get_directory_listing(path):
output = {}
output["text"] = path.decode('latin1')
output["type"] = "directory"
output["children"] = all_dirs_with_subdirs(path, ('Maps', 'Reports'))
return output
with open('test.json', 'w+') as f:
listing = get_directory_listing(".")
json.dump(listing, f)
</code></pre>