python使用flask发送文件(xlsx)
2020-06-06 本文已影响0人
Odven
这个程序主要是从有规律的目录中下载xlsx文件
目录结构
flask_test.py
plan
2020-06-01
2020_06_01-name.xlsx
....
2020-06-02
2020_06_02-name.xlsx
....
flask_test.py
#!/usr/bin/env python
# _*_ coding:utf-8 _*_
import os
from flask import Flask, request, send_file, send_from_directory, jsonify
app = Flask(__name__)
@app.route("/api/show_files", methods=["GET"])
def show_file():
d = request.args.get("date", "")
print(d)
d = "plan" + os.sep + d
print(d)
f_list = list()
for base, dir, file_list in os.walk(d):
for file in file_list:
f_list.append(file)
# 返回目录路径下面的文件
return '{"data": %s}' % f_list, 200, {"Content-Type": "application/json"}
@app.route("/api/get_file", methods=["GET", "POST"])
def get_file():
if request.method == "POST":
f = request.form.get("file", "")
print(f)
try:
d = f.split("-")[0]
y, m, d = d.split("_")
except Exception as e:
return "文件格式不正确等"
dir_path = os.path.join(os.path.abspath(os.path.dirname(__file__)), "plan" + os.sep + "%s-%s-%s" % (y, m, d)) # 拼接目录路径
file_path = dir_path + os.sep + f # 拼接文件位置
print(file_path)
if not os.path.exists(file_path):
return "文件不存在"
# return send_file(file_path, attachment_filename="%s" % f, as_attachment=True)
return send_from_directory(dir_path, f, as_attachment=True)
return '''
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Download file</title>
</head>
<body>
<form action="/api/show_files" method="get">
选择年月日查看目录下的文件列表: <input type="date" name="date" required="required">
<input type="submit">
</form>
<hr>
<form action="/api/get_file" method="post">
文件名: <input type="text" name="file" required="required">
<input type="submit">
</form>
</body>
</html>
'''
@app.errorhandler(404)
def error_404(error):
return "迷失在外太空<br> ERROR --> %s" % error, 404
if __name__ == '__main__':
app.run(debug=True)
浏览器输入: 127.0.0.1:5000/api/get_file
