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This article introduces the relevant knowledge of "how to log in 12306 with python behavior chain". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Log in to 12306 using the python web crawler and the website interface is as follows. Because the anti-crawling of the site is constantly upgraded, the following code is currently available, but sooner or later will no longer be able to meet the login requirements. But the value of knowledge is beyond doubt.

From selenium import webdriverfrom selenium.webdriver.common.action_chains import ActionChainsimport timefrom selenium.webdriver import ChromeOptions# removes browser recognition option = ChromeOptions () option.add_experimental_option ('excludeSwitches', [' enable-automation']) option.add_experimental_option ("detach", True) driver = webdriver.Chrome (options=option) driver.get ('https://kyfw.12306.cn/otn/resources/login.html')# solution feature recognition script =' Object.defineProperty (navigator, "webdriver") {get: () = > false,}) 'driver.execute_script (script) # enter the account driver.find_element_by_id (' Jmurusername'). Send_keys ('123 password 163.com') # enter the password driver.find_element_by_id ('Jmurpassword'). Send_keys ('xxxxxxx') # Click to log in to driver.find_element_by_id (' Jmurlogin'). Click () # wait 2 seconds, don't click too fast To avoid being identified or lest the web page load can't keep up. Time.sleep (2) # Slide # Positioning Slider label span = driver.find_element_by_id ('nc_1_n1z') actions = ActionChains (driver) # behavior chain instantiation time.sleep (2) # wait 2 seconds # after screenshot measurement, the slider needs to slide over a distance of 300 pixels actions.click_and_hold (span). Move_by_offset (300,0). Perform () # slide

Resolve browser recognition:

The following lines of code can be used to remove the browser's recognition of selenium, such as the figure so that the browser page can no longer display the words "Chrome is under the control of automated testing software".

From selenium.webdriver import ChromeOptionsoption = ChromeOptions () option.add_experimental_option ('excludeSwitches', [' enable-automation']) option.add_experimental_option ("detach", True) driver = webdriver.Chrome (options=option)

Code to solve feature recognition:

Script = 'Object.defineProperty (navigator, "webdriver", {get: () = > false,});' driver.execute_script (script)

If the removal of feature recognition is not taken, that is, the following two lines of code. The slider CAPTCHA of the page will display the error shown in the following figure after sliding, thus preventing the login from proceeding. Because of the characteristics of selenium recognized by the server. Use these two lines of code to change the characteristics, that is, you can successfully pass the recognition.

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