Python项目-Day27-token解析装饰器-python连接mysql

Python项目-Day27-token解析装饰器-python连接mysql

1. 使用装饰器解析token

   from functools import wraps
   import jwt
   import datetime
   from flask import Blueprint,request
   datetimeInt = datetime.datetime.utcnow() + datetime.timedelta(seconds=180)
   SECRECT_KEY = 'secret'
   def checkToken():
       def decorated(func):
           @wraps(func)
           def wrapper():
   
               try:
                   token=request.headers['token']
                   print('token 是：')
                   print(token)
                   decoded = jwt.decode(token, SECRECT_KEY, audience='webkit', algorithms=['HS256'])
                   return func()
               except jwt.ExpiredSignatureError as err:
                   print("erroing.................",err)
                   decoded = {"error_msg": "is timeout !!", "some": None}
                   return '{"code":"004"}'+request.url #此处需要改进哦
               except Exception:
                   decoded = {"error_msg": "noknow exception!!", "some": None}
                   print("erroing2.................")
                   return '{"code":"004"}'+request.url
   
           return wrapper
   
       return decorated
   
   
   def jwtEncoding(some, aud='webkit'):
       datetimeInt = datetime.datetime.utcnow() + datetime.timedelta(seconds=180)
       print(datetimeInt)
       option = {
           'iss': 'jobapp.com',
           'exp': datetimeInt,
           'aud': 'webkit',
           'some':some
       }
       encoded2 = jwt.encode(option, SECRECT_KEY, algorithm='HS256')
       print(encoded2.decode())
       return encoded2.decode()
   
   if __name__ == '__main__':
       res=jwtEncoding('{"userid","889"}')
   
       print(res)
   

   在路由方法中调用

   @resume_app.route('/add')  #/user/add
   @checkToken()  #此处需要用户权限调用
   def add():
       return '添加简历'
   

2. python连接数据库MySQL

   首页导入pymysql
   import pymysql
   #新建一个连接到数据库
   connect = pymysql.connect(host='127.0.0.1', user='root', port=3306, password='', db=database)
   生成一个游标
   cursor=connect.cursor()
   #写出要执行的sql语句
   sql='select * from user'
   #执行sql
   cursor.execut(sql)
   #获取执行结果
   res=cursor.fetchall()
   print(res)
   #关闭游标
   cursor.close()
   connect.close()
   

   将python连接mysql封装起来

   __init__.py

   import pymysql
   def get_connect(database):
       connect = pymysql.connect(host='127.0.0.1', user='root', port=3306, password='', db=database)
       return connect
   

   mysql_connect.py

   from app.dao.__init__ import get_connect
   def test_a(**kwargs):
       print(kwargs)
       sql=''
       for i in kwargs.keys():
           print(i)
           if not sql:
               sql=sql+i
           else:
               sql = sql + ',' + i
       print(sql)
   def create_mysql_connect(database,table,name,psd):
       try:
           connect = get_connect(database)
           cursor = None
   
   
           cursor = connect.cursor()
   
   
           sql = 'INSERT INTO {0} (username,password) VALUES ("{1}","{2}")'.format(table,name,psd)
           print(sql)
           res = cursor.execute(sql)
   
           connect.commit()
       except Exception as ex:
           print(ex)
       finally:
           if cursor:
               cursor.close()
           if connect:
               connect.close()
   
   def select_table(table):
       try:
           connect=None
           cursor=None
           connect = get_connect('test')
           cursor = connect.cursor()
           sql = 'SELECT * from {0}'.format(table)
           cursor.execute(sql)
           res=cursor.fetchall()
           return res
       except Exception as ex:
           print(ex)
       finally:
           if cursor:
               cursor.close()
           if connect:
               connect.close()