python+flask实现API的方法

本文为大家分享了python+flask实现API的具体方法，供大家参考，具体内容如下

Flask 框架

#-*-coding:utf-8-*- #pip install flask#pip install flask-restful from flask import Flask app = Flask(__name__) @app.route('/')def index():  return "hello world!" if __name__ == '__main__':  app.run(debug=True)

pycharm运行该程序后，在浏览器输入http://127.0.0.1:5000/，即可看到一个网页：

Flask + flask_restful创建一个简单的应用程序:

from flask import Flaskfrom flask_restful import Resource,Api app = Flask(__name__)api = Api(app)class HelloWorld(Resource):  def get(self):    return {"hello":"world"} api.add_resource(HelloWorld,'/') if __name__ == '__main__':  app.run(debug=True)

python+flask创建API: 获取post请求传递的json数据

from flask import Flask,abort,jsonify,make_response,request app = Flask(__name__) @app.route('/analyze/' ,methods=['POST'])def call_wiscan_analyze():  if not request.json or not 'path' in request.json:     abort(400)  path = request.json['path']  if __name__ == '__main__':  app.run(port='50055',debug=True)

请求：

from requests import post if __name__ == '__main__':  path='"F:/nb_org_data/86574FG01/2013/1029/0008/86574FG01201310290008.img"'  ret = post('http://localhost:50055/analyze/',json={'path':path})  print(ret.text)

将API封装为win32服务

import win32serviceutilimport win32serviceimport win32eventimport win32timezonefrom flask import Flask,abort,jsonify,make_response,requestimport threading app = Flask(__name__)_ONE_DAY_IN_SECONDS = 60 * 60 * 24 @app.route('/analyze/' ,methods=['POST'])def call_wiscan_analyze():  if not request.json or not 'path' in request.json:     abort(400)  path = request.json['path'] def thread_target():  app.run(port='50055', debug=True) class GRPCWin32Client(win32serviceutil.ServiceFramework):  _svc_name_ = 'GRPCWin32Client'  _svc_display_name_ = 'Nuctech GRPC Client'  _svc_description_ = 'wiscan grpc client'   def __init__(self, args):    win32serviceutil.ServiceFramework.__init__(self, args)    self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)    #self.logger = self._getLogger()    self.run = True   def SvcDoRun(self):    th = threading.Thread(target=thread_target)    th.start()    try:      while self.run:        time.sleep(_ONE_DAY_IN_SECONDS)     except KeyboardInterrupt:      pass     pass   def SvcStop(self):    self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)    win32event.SetEvent(self.hWaitStop)    self.run = False if __name__ == '__main__':  import sys  import servicemanager  if len(sys.argv) == 1:    try:      evtsrc_dll = os.path.abspath(servicemanager.__file__)      servicemanager.PrepareToHostSingle(GRPCWin32Client)      servicemanager.Initialize('GRPCWin32Client', evtsrc_dll)      servicemanager.StartServiceCtrlDispatcher()    except win32service.error as details:      import winerror      if details == winerror.ERROR_FAILED_SERVICE_CONTROLLER_CONNECT:        win32serviceutil.usage()  else:    win32serviceutil.HandleCommandLine(GRPCWin32Client)