有偿求助，代码如下，主页展示和下载功能正常。但是只要把首页路由改了，比如改成“/1”，就只有首页可以用，点文件夹进入下层文件夹就报错。
【flask代码】
from flask import Flask
from flask import request
from flask import render_template, send_from_directory
import os
import time
app = Flask(__name__)
# 这里是预先将值存储在系统环境变量中了
app.secret_key = 'QWEaRdskjgkjgads3TYUdI2fdgfsgdafdsafdOPdkjgkjgdskjgkjgaf1234ffdfdasa56fdakjgkjgkfaaa'
DEFAULT_PATH = 'D:/'
current_path = ''
# 获取文件信息的函数
def get_files_data(path):
"""
获取指定路径下的所有文件、文件夹的信息
"""
global current_path
files = []
for the_name in os.listdir(path):
# 拼接路径
file_path = path+"/"+the_name
# 判断是文件夹还是文件
if os.path.isfile(file_path):
the_type = 'file'
else:
the_type = 'dir'
name = the_name
size = os.path.getsize(file_path)
size = file_size_fomat(size, the_type)
# 创建时间
ctime = time.localtime(os.path.getctime(file_path))
# 封装成字典形式追加给 files 列表
files.append({
"name": name,
"size": size,
# 拼接年月日信息
"ctime": "{}/{}/{}".format(ctime.tm_year, ctime.tm_mon, ctime.tm_mday),
"type": the_type
})
# 更新当前路径
current_path = path
return files
def file_size_fomat(size, the_type):
"""
文件大小格式化，携带单位
"""
if the_type == 'dir':
return '<DIR>'
else:
if size < 1024:
return '%i' % size + ' B'
elif 1024 < size <= 1048576:
return '%.1f' % float(size/1024) + ' KB'
elif 1048576 < size <= 1073741824:
return '%.1f' % float(size/1048576) + ' MB'
elif 1073741824 < size <= 1099511627776:
return '%.1f' % float(size/1073741824) + ' GB'
def get_current_path():
return current_path
@app.route('/', methods=['GET', 'POST'])
def jingshijiaoyu():
if request.method == 'GET':
return render_template("jingshijiaoyu.html",
data={
"files": get_files_data(DEFAULT_PATH),
"currentPath": DEFAULT_PATH,
})
else:
# POST 请求下获取传递的路径信息，并返回相应数据
if request.form.get('pathText'):
path_text = request.form.get('pathText')
return render_template("jingshijiaoyu.html",
data={
"files": get_files_data(path_text),
"currentPath": get_current_path(),
})
@app.route("/download_file/<filename>")
def file_content(filename):
# 若文件存在
if filename in os.listdir(get_current_path()):
# 发送文件 参数：路径，文件名
return send_from_directory(get_current_path(), filename)
else:
return render_template("download_error.html", filename=filename)
if __name__ == '__main__':
# 监听在所有 IP 地址上
app.run()
【html文件代码】
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="Cache-Control" content="no-cache" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />
<title>flask 文件共享</title>
<link rel="stylesheet" href="../static/css/jingshijiaoyu.min.css">
<script src="../static/js/jingshijiaoyu.min.js"></script>
</head>
<body>
<div class="all-container">
<h1>文件共享</h1>
<div class="drivers-container">
根目录：
{% for driver in data.drivers %}
<a href="javascript:;" location="{{driver}}" style="color:#66ccff">{{driver}}</a>
{% endfor %}
<h3 class="currentPath">当前路径：<span>{{data.currentPath}}</span></h3>
</div>
<button class="to-lastPath" onclick="window.history.back()"> ← 上级目录</button>
<table class="files-table">
<tr>
<!-- 表头 -->
<td class="td-name">文件或文件夹</td>
<td class="td-size">大小</td>
<td class="td-ctime">创建日期</td>
</tr>
<!-- 将传上来的files进行遍历 输出HTML标签 -->
{% for file in data.files %}
<tr type="{{file.type}}">
<td class="td-name {{file.type}}"><a href="/download_file/{{file.name}}"
dirname="{{file.name}}">{{file.name}}</a></td>
<td class="td-size">{{file.size}}</td>
<td class="td-ctime">{{file.ctime}}</td>
</tr>
{% endfor %}
</table>
<form action="/" method="POST" style="display: none;" id="pathForm">
<input type="text" name="pathText" value>
<input type="submit">
</form>
<section class="flash-tablet" style="display: none;">
<div class="inner-container">
<div class="drivers-container">
根目录：
{% for driver in data.drivers %}
<a href="javascript:;" location="{{driver}}" style="color:black">{{driver}}</a>
{% endfor %}
<h3 class="currentPath">当前路径：<span>{{data.currentPath}}</span></h3>
</div>
<button class="to-lastPath" onclick="window.history.back()"> ← 上级目录</button>
<button id="to-top">返回顶部</button>
</div>
</section>
</div>
</body>
</html>
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