标签：python 上传下载 filename flask result file print path data
记录瞬间
最近为了解决一些新的需求，简单介入了flask对文件的上传和下载的方法，并分别使用python和curl模拟发送
代码：
#! /usr/bin/env python3
# coding:utf-8
import platform
from werkzeug.utils import secure_filename
from flask import Flask, jsonify, request, Response
import os
app = Flask(__name__)
UPLOAD_FOLDER = 'upload'
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
app.config['MAX_CONTENT_LENGTH'] = 20 * 1024 * 1024 # 定义最大上传文件大小为：20M
ALLOWED_EXTENSIONS = set(['txt', 'png', 'jpg', 'xls', 'JPG', 'PNG', 'zip', 'gif', 'GIF'])
run_path = "./" # 根据不同的操作系统，定义基础运行路径
if platform.system() == "Linux":
run_path = r'/opt/AutoUpload/'
if platform.system() == "Windows":
run_path = r'D:/PythonWorkSpace/'
msg = 'niGEin!'
# 用于判断文件后缀
def allowed_file(filename):
return '.' in filename and filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS
# 上传文件-upload-file
@app.route('/uf', methods=['POST'], strict_slashes=False)
def api_upload():
file_dir = run_path + UPLOAD_FOLDER
if not os.path.exists(file_dir):
os.makedirs(file_dir)
f = request.files['file'] # 获取上传文件
print(request.values.get("filePath"))
fname = secure_filename(f.filename)
ext = fname.rsplit('.', 1)[1] # 获取文件后缀
f.save(os.path.join(file_dir, fname)) # 保存文件到upload目录
if ext == 'zip':
pass
return jsonify({"errno": "000000", "errmsg": u"success"})
# 下载文件-download-file
@app.route('/df', methods=['GET', 'POST'])
def api_download():
if request.method == 'GET':
fullfilename = request.json['fileName']
print(fullfilename)
filepath = run_path + 'tools/' + fullfilename
print(filepath)
if not os.path.isfile(filepath):
print("nononononono!!!")
return
# 普通下载
# response = make_response(send_from_directory(filepath, fullfilename, as_attachment=True))
# response.headers["Content-Disposition"] = "attachment; filename={}".format(filepath.encode().decode('latin-1'))
# return response
# 流式读取
def send_file():
store_path = filepath
with open(store_path, 'rb') as targetfile:
while 1:
data = targetfile.read(1 * 1024 * 1024) # 每次读取1M
if not data:
break
yield data
response = Response(send_file(), content_type='application/octet-stream')
response.headers["Content-disposition"] = 'attachment; filename=%s' % fullfilename
return response
if __name__ == '__main__':
app.run(debug=True, port=5002, host='0.0.0.0')
# 默认127.0.0.1:5000，这里修改了地址和端口方便自己使用
调用方式：
# coding:utf-8
import requests
from urllib3 import encode_multipart_formdata
url = "http://localhost:5002/up"
data = {
"filePath": "123123123"
}
header = {}
data['file'] = ("xx.zip", open(r"./basedir/xx.zip", 'rb').read())
encode_data = encode_multipart_formdata(data)
data = encode_data[0]
header['Content-Type'] = encode_data[1]
try:
result = requests.request(method='POST', url=url, headers=header, data=data, timeout=(3, 100))
if "true" in result.text:
analyse_json = result.json()
print("向服务器发送文件并解压成功")
result_path = analyse_json["data"]
print("服务器端的地址为 {}".format(result_path))
else:
print("向服务器发送文件并解压Failed {}".format(result.text))
except Exception as e:
print("执行发送数据失败.{}".format(e))
#--------------------------------------------
url = "http://localhost:5002/df"
data = {
"fileName": "xx.jar"
}
result = requests.request(method="GET", url=url, json=data, stream=True)
f = open(data['fileName'], "wb")
for chunk in result.iter_content(chunk_size=512):
if chunk:
f.write(chunk)
#---------------------------------------------
使用curl命令进行发送文件的方式：
curl ${URL} -X POST -F "file=@${app_path}/${APP_NAME}.zip" -F "ip1=${IP}" -F "ip2=${get_ip}" -F "port=${port}" -F "num=${num}"
标签：python,上传下载,filename,flask,result,file,print,path,data 来源： https://www.cnblogs.com/wozijisun/p/11318376.html
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