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This article mainly introduces how to use Python to make a script for automatic ticket grabbing, which is very detailed and has a certain reference value. Interested friends must finish reading it!

Knowledge points:

Object oriented programming

Selenium Operation browser

Pickle saves and reads Cookie to achieve login-free

Time does delay operation.

Os creates a file to determine whether the file exists

Development environment:

Version: anaconda5.2.0 (python3.6.5)

Editor: pycharm

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The first step is to import the required module import osimport timeimport picklefrom timeimport sleepfrom selenium import webdriver to achieve the goal of login-free. Set the global variable # barley home page damai_url = "https://www.damai.cn/"# login page login_url =" https://passport.damai.cn/login?ru=https%3A%2F%2Fwww.damai.cn%2F"# ticket grabbing target page target_url = 'https://detail.damai.cn/item.htm?spm=a2oeg.search_category.0.0.77f24d15RWgT4o&id=654534889506&clicktitle=%E5%A4%A7%E4%BC%97%E7 Initialize loading class Concert: def _ _ init__ (self): self.status = 0 # status Indicates how far it is now self.login_method = 1 # {0: simulated login 1:Cookie login} choose your own login method self.driver = webdriver.Chrome (executable_path='chromedriver.exe') # default Chrome browser login settings cookiedef set_cookie (self): self.driver.get (damai_url) print ("# Please click to log in # #") while self.driver.title.find ('Barley net-official ticketing platform for global performance events' )! =-1: sleep (1) print ('# Please scan the code to log in # #) while self.driver.title! = 'Barley net-official ticketing platform for global performance events-100% authentic, Pay first, grab first, and choose seats online!' : sleep (1) print ("# scan successfully #") pickle.dump (self.driver.get_cookies (), open ("cookies.pkl", "wb")) print ("# Cookie saved successfully #") self.driver.get (target_url) get cookiedef get_cookie (self): try: cookies = pickle.load (open ("cookies.pkl") "rb")) # load cookie for cookie in cookies: cookie_dict = {'domain':'.damai.cn', # must have Otherwise, it is a fake login to 'name': cookie.get (' name'). 'value': cookie.get (' value')} self.driver.add_cookie (cookie_dict) print ('# load Cookie###') except Exception as e: print (e) login def login (self): if self.login_method==0: self.driver.get (login_url) # load login interface print ('# start login #') elif self.login_method==1: if not os.path.exists ('cookies.pkl'): # if cookie.pkl does not exist Just get self.set_cookie () else: self.driver.get (target_url) self.get_cookie () Open browser def enter_concert (self): "" Open browser "" print ('# Open browser " Enter the barley network #) # self.driver.maximize_window () # maximize window # call login self.login () # log in first and say self.driver.refresh () # refresh page self.status = 2 # login Function logo print ("# login successful #") # follow up Deyun Society can say if self.isElementExist ('/ html/body/div [2] / div [2] / div/div/div [3] / div [2]'): self.driver.find_element_by_xpath ('/ html/body/div [2] / div [2] / div/div/div [3] / div [2]'). Click () second step Snatch tickets and place an order to determine whether the element exists def isElementExist (self Element): flag = True browser = self.driver try: browser.find_element_by_xpath (element) return flag except: flag = False return flag ballot operation def choose_ticket (self): if self.status = = 2: # login success entry print ("=" * 30) print ("# start date and Ticket price selection # # ") while self.driver.title.find ('confirm order') =-1: # if you jump to the order settlement interface, this step is considered successful Otherwise, continue with this step try: buybutton = self.driver.find_element_by_class_name ('buybtn'). Text if buybutton = = "submit out-of-stock registration": # change the existing status self.status=2 self.driver.get (target_url) Print ('# ticket scramble has not started Refresh waiting starts #') continue elif buybutton = "book now": self.driver.find_element_by_class_name ('buybtn') .click () # change the existing status self.status = 3 elif buybutton = = "Buy now" : self.driver.find_element_by_class_name ('buybtn'). Click () # change the existing status self.status = 4 # seat selection purchase is temporarily unable to complete automation elif buybutton = = "seat purchase": self.driver .find _ element_by_class_name ('buybtn'). Click () self.status = 5 except: print (' # did not jump to the order settlement interface # #) title = self.driver.title if title = = 'choose a seat to purchase': # realize the logic of choosing a seat to purchase Self.choice_seats () elif title = = 'confirm order': while True: # if the title is confirm order print ('waiting.') If self.isElementExist ('/ * [@ id= "container"] / div/div [9] / button'): self.check_order () break Select seat def choice_seats (self): while self.driver.title = = 'Buy seat': while self.isElementExist ('/ * [@ id= "app"] / div [2] / div [ 2] / div [1] / div [2] / img'): # after manually selecting a seat / / * [@ id= "app"] / div [2] / div [2] / div [1] / div [2] / img will disappear print ('Please choose your seat quickly!') / / * [@ id= "app"] / div [2] / div while self.isElementExist ('/ / * [@ id= "app"] / div [2] / div [2] / div'): # Click to confirm the seat self.driver.find_element_by_xpath after finding it ('/ / * [@ id= "app"] / div [2] / button') .click () place an order operation def check_order (self): if self.status in [3jue 4 5]: print ('# start confirming order #') try: # choose the first buyer information self.driver.find_element_by_xpath ('/ / * [@ id= "container"] / div/div [2] / div [2] / div [1] / div/label'). Click () except Exception as e: Print ("# failed to select ticket buyer information Check element location # ") print (e) # Last step submit order time.sleep (0.5) # too soon will affect loading, resulting in invalid self.driver.find_element_by_xpath ('/ / div [@ class =" w1200 "] / / div [2] / / div//div [9] / / button [1]'). Click () Exit def finish (self): self.driver.quit () tests whether the code is successful if _ _ name__ = ='_ main__': try: con = Concert () # if you enter it, please check the initialization function con.enter_concert () # Open browser con.choose_ticket () # Start grabbing tickets except Exception as e: print (e) con.finish () finally see how it works.

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