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680d792 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 | from flask import Flask, request, send_file, redirect
import pandas as pd
import os
import time
from threading import Thread
from datetime import datetime
app = Flask(__name__)
UPLOAD_FOLDER = 'uploads'
ALLOWED_EXTENSIONS = {'xlsx'}
CLEANUP_INTERVAL = 300 # 5分钟
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
def cleanup_uploads():
"""定时清理uploads文件夹"""
while True:
time.sleep(CLEANUP_INTERVAL)
try:
for filename in os.listdir(app.config['UPLOAD_FOLDER']):
file_path = os.path.join(app.config['UPLOAD_FOLDER'], filename)
try:
if os.path.isfile(file_path) or os.path.islink(file_path):
os.unlink(file_path)
except Exception as e:
print(f'删除文件 {file_path} 失败: {e}')
except Exception as e:
print(f'清理uploads文件夹失败: {e}')
# 启动清理线程
cleanup_thread = Thread(target=cleanup_uploads)
cleanup_thread.daemon = True
cleanup_thread.start()
def allowed_file(filename):
return '.' in filename and filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
@app.route('/', methods=['GET', 'POST'])
def index():
if request.method == 'POST':
if 'file' not in request.files:
return "没有选择文件"
file = request.files['file']
if file.filename == '':
return "没有选择文件"
if file and allowed_file(file.filename):
# 确保上传目录存在
os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
# 生成安全的文件名
upload_dir = os.path.abspath(app.config['UPLOAD_FOLDER'])
os.makedirs(upload_dir, exist_ok=True)
filename = os.path.join(upload_dir, file.filename)
file.save(filename)
# 处理Excel文件
df = pd.read_excel(filename)
df_deduplicated = df.drop_duplicates()
# 生成带时间戳的输出文件名
timestamp = datetime.now().strftime('%Y%m%d_%H%M%S')
base_name, ext = os.path.splitext(file.filename)
output_filename = os.path.join(upload_dir, f'{base_name}_{timestamp}{ext}')
df_deduplicated.to_excel(output_filename, index=False)
# 确保文件已写入
if not os.path.exists(output_filename):
raise FileNotFoundError(f"无法创建文件: {output_filename}")
return f'''<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>去重完成</title>
<style>
body {{
font-family: Arial, sans-serif;
margin: 20px;
padding: 0;
max-width: 800px;
margin: 0 auto;
}}
.result-container {{
margin-top: 30px;
padding: 20px;
background: #ecf0f1;
border-radius: 8px;
text-align: center;
}}
.btn {{
display: inline-block;
padding: 10px 20px;
background: #3498db;
color: white;
text-decoration: none;
border-radius: 4px;
margin: 10px;
}}
.btn-danger {{
background: #e74c3c;
}}
.btn:hover {{
opacity: 0.9;
}}
</style>
</head>
<body>
<h1>去重完成</h1>
<div class="result-container">
<p>文件去重处理成功！</p>
<button onclick="clearCache()" class="btn btn-danger">清理缓存</button>
<script>
function clearCache() {{
fetch('/clear_cache', {{ method: 'POST' }})
.then(() => window.location.href = '/')
.catch(err => console.error(err));
}}
</script>
<a href="/download/{os.path.basename(output_filename)}" class="btn">下载去重后的文件</a>
</div>
</body>
</html>'''
return '''
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Excel去重工具</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 20px;
padding: 0;
max-width: 800px;
margin: 0 auto;
}
h1 {
color: #2c3e50;
text-align: center;
margin: 30px 0;
}
.upload-form {
background: #f5f5f5;
padding: 20px;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.upload-form input[type="file"] {
margin: 10px 0;
padding: 10px;
width: 100%;
box-sizing: border-box;
}
.upload-form input[type="submit"] {
background: #3498db;
color: white;
border: none;
padding: 12px 24px;
border-radius: 4px;
cursor: pointer;
width: 100%;
font-size: 16px;
}
.upload-form input[type="submit"]:hover {
background: #2980b9;
}
.result-container {
margin-top: 30px;
padding: 20px;
background: #ecf0f1;
border-radius: 8px;
}
.btn {
display: inline-block;
padding: 10px 20px;
background: #e74c3c;
color: white;
text-decoration: none;
border-radius: 4px;
margin: 10px 0;
}
.btn:hover {
background: #c0392b;
}
@media (max-width: 600px) {
h1 {
font-size: 24px;
}
.upload-form {
padding: 15px;
}
}
</style>
</head>
<body>
<h1>Excel文件去重工具</h1>
<div class="upload-form">
<form method="post" enctype="multipart/form-data">
<input type="file" name="file" accept=".xlsx" required>
<input type="submit" value="开始去重">
</form>
</div>
</body>
</html>
'''
@app.route('/download/<filename>')
def download_file(filename):
try:
upload_dir = os.path.abspath(app.config['UPLOAD_FOLDER'])
path = os.path.join(upload_dir, filename)
if not os.path.exists(path):
raise FileNotFoundError(f"文件 {filename} 不存在")
return send_file(path, as_attachment=True)
except Exception as e:
return f"下载文件失败: {str(e)}", 500
@app.route('/clear_cache', methods=['POST'])
def clear_cache():
try:
for filename in os.listdir(app.config['UPLOAD_FOLDER']):
file_path = os.path.join(app.config['UPLOAD_FOLDER'], filename)
try:
if os.path.isfile(file_path) or os.path.islink(file_path):
os.unlink(file_path)
except Exception as e:
print(f'删除文件 {file_path} 失败: {e}')
return '''
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>缓存已清理</title>
<style>
body {
font-family: Arial, sans-serif;
text-align: center;
margin-top: 50px;
}
.countdown {
font-size: 24px;
color: #2c3e50;
margin: 20px 0;
}
</style>
<script>
let count = 3;
const countdown = document.getElementById('countdown');
setInterval(() => {
count--;
countdown.innerText = count;
if (count === 0) {
window.location.href = '/';
}
}, 1000);
</script>
</head>
<body>
<h1>缓存已成功清理</h1>
<div class="countdown">
将在 <span id="countdown">3</span> 秒后返回首页
</div>
</body>
</html>
'''
except Exception as e:
return f'清理缓存失败: {e}'
if __name__ == '__main__':
os.makedirs(UPLOAD_FOLDER, exist_ok=True)
app.run(host='0.0.0.0', port=5000) |