selenium Login Douban

Login process:

• Examples of a driver, then driver.get () sends a request
• The most important: Switch iframe sub-frame, because that part of the login page watercress is a ifrme, you must switch to find the corresponding element
• The use of selenium to switch to the login account password
• The use of selenium enter the account and password
• The use of selenium click the login button
• Then use the dictionary comprehension save a little cookie

Code:

. 1  Import Time
 2  from Selenium Import the webdriver
 . 3  
. 4  # Example of Driver 
. 5 Driver = webdriver.Chrome ()
 . 6 driver.get ( ' https://www.douban.com/ ' )
 . 7  # # iframe switching sub-frame 
. 8 Driver. switch_to.frame (driver.find_elements_by_tag_name ( " iframes " ) [0])
 . 9  
10 driver.maximize_window ()   # maximize the window 
. 11 driver.find_element_by_css_selector ( ' li.account-Account-Tab ') .click ()   # Click password label 
12 driver.find_element_by_id ( ' username ' ) .send_keys ( ' 13,343,396,443 ' )
 13 driver.find_element_by_id ( ' password ' ) .send_keys ( ' lilei120400 ' )
 14  # Click 'Login bean' button 
15  # It should be noted that when the class attribute has several elements, the parameters of this function to fill a first class like 
16 driver.find_element_by_class_name ( ' btn ' ) .click ()   # class attribute of an element: btn Account-BTN 
. 17  # obtain cookies, Dictionary derivation 
18 cookies = {i['name']: i['value'] for i in driver.get_cookies()}
19 print(cookies)
20 
21 time.sleep(5)
22 driver.quit()  # 退出浏览器