最近為了解決一些新的需求，簡單介入了flask對文件的上傳和下載的方法，并分別使用python和curl模擬發送

代碼：

#! /usr/bin/env python3 # coding:utf-8 import platformfrom werkzeug.utils import secure_filename from flask import Flask, jsonify, request, Response import osapp = Flask(__name__) UPLOAD_FOLDER = 'upload' app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER app.config['MAX_CONTENT_LENGTH'] = 20 * 1024 * 1024 # 定義最大上傳文件大小為：20MALLOWED_EXTENSIONS = set(['txt', 'png', 'jpg', 'xls', 'JPG', 'PNG', 'zip', 'gif', 'GIF']) run_path = "./" # 根據不同的操作系統，定義基礎運行路徑 if platform.system() == "Linux":run_path = r'/opt/AutoUpload/' if platform.system() == "Windows":run_path = r'D:/PythonWorkSpace/' msg = 'niGEin!'# 用于判斷文件后綴 def allowed_file(filename):return '.' in filename and filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS# 上傳文件-upload-file @app.route('/uf', methods=['POST'], strict_slashes=False) def api_upload():file_dir = run_path + UPLOAD_FOLDERif not os.path.exists(file_dir):os.makedirs(file_dir)f = request.files['file'] # 獲取上傳文件print(request.values.get("filePath"))fname = secure_filename(f.filename)ext = fname.rsplit('.', 1)[1] # 獲取文件后綴f.save(os.path.join(file_dir, fname)) # 保存文件到upload目錄if ext == 'zip':passreturn jsonify({"errno": "000000", "errmsg": u"success"})# 下載文件-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/' + fullfilenameprint(filepath)if not os.path.isfile(filepath):print("nononononono!!!")return# 普通下載# 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# 流式讀取def send_file():store_path = filepathwith open(store_path, 'rb') as targetfile:while 1:data = targetfile.read(1 * 1024 * 1024) # 每次讀取1Mif not data:breakyield dataresponse = Response(send_file(), content_type='application/octet-stream')response.headers["Content-disposition"] = 'attachment; filename=%s' % fullfilename return responseif __name__ == '__main__':app.run(debug=True, port=5002, host='0.0.0.0')# 默認127.0.0.1:5000，這里修改了地址和端口方便自己使用

調用方式：

''' 遇到問題沒人解答？小編創建了一個Python學習交流QQ群：857662006 尋找有志同道合的小伙伴，互幫互助,群里還有不錯的視頻學習教程和PDF電子書！ ''' # coding:utf-8 import requests from urllib3 import encode_multipart_formdataurl = "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("向服務器發送文件并解壓成功")result_path = analyse_json["data"]print("服務器端的地址為 {}".format(result_path))else:print("向服務器發送文件并解壓Failed {}".format(result.text)) except Exception as e:print("執行發送數據失敗.{}".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命令進行發送文件的方式：

curl ${URL} -X POST -F "file=@${app_path}/${APP_NAME}.zip" -F "ip1=${IP}" -F "ip2=${get_ip}" -F "port=${port}" -F "num=${num}"

總結

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