Running Selenium with Headless Chrome Webdriver

问题

So I'm trying some stuff out with selenium and I really want it to be quick.

So my thought is that running it with headless chrome would make my script faster.

First is that assumption correct, or does it not matter if i run my script with a headless driver?

Anyways I still want to get it to work to run headless, but I somehow can't, I tried different things and most suggested that it would work as said here in the October update

How to configure ChromeDriver to initiate Chrome browser in Headless mode through Selenium?

But when I try that, I get weird console output and it still doesn't seem to work.

Any tipps appreciated.

回答1:

To run chrome-headless just add --headless via chrome_options.add_argument, i.e.:

from selenium import webdriver from selenium.webdriver.chrome.options import Options
chrome_options = Options()
#chrome_options.add_argument("--disable-extensions")
#chrome_options.add_argument("--disable-gpu")
#chrome_options.add_argument("--no-sandbox) # linux only
chrome_options.add_argument("--headless")
driver = webdriver.Chrome(options=chrome_options)
start_url = "https://duckgo.com"
driver.get(start_url)
print(driver.page_source.encode("utf-8"))
driver.quit()
# b'<!DOCTYPE html><html xmlns="http://www....

So my thought is that running it with headless chrome would make my script faster.

Try using chrome options like --disable-extensions or --disable-gpu and benchmark it, but I wouldn't count with much improvement.

References: headless-chrome

Note: As of today, when running chrome headless, you should include the --disable-gpu flag if you're running on Windows. See crbug.com/737678.

回答2:

If you are using Linux environment, may be you have to add --no-sandbox as well and also specific window size settings. The --no-sandbox flag is no needed on Windows if you set user container properly.

Use --disable-gpu only on Windows. Other platforms no longer require it. The --disable-gpu flag is a temporary work around for a few bugs.

//Headless chrome browser and configure
            WebDriverManager.chromedriver().setup();
            ChromeOptions chromeOptions = new ChromeOptions();
            chromeOptions.addArguments("--no-sandbox");
            chromeOptions.addArguments("--headless");
            chromeOptions.addArguments("disable-gpu");
//          chromeOptions.addArguments("window-size=1400,2100"); // Linux should be activate
            driver = new ChromeDriver(chromeOptions);

回答3:

from time import sleep

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

chrome_options = Options()
chrome_options.add_argument("--headless")

driver = webdriver.Chrome(executable_path="./chromedriver", options=chrome_options)
url = "https://stackoverflow.com/questions/53657215/running-selenium-with-headless-chrome-webdriver"
driver.get(url)

sleep(5)

h1 = driver.find_element_by_xpath("//h1[@itemprop='name']").text
print(h1)

Then I run script on our local machine

➜ python script.py
Running Selenium with Headless Chrome Webdriver

It is working and it is with headless Chrome.

回答4:

Todo (tested on headless server Debian Linux 9.4):

Do this:

# install chrome
curl -sS -o - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
echo "deb [arch=amd64]  http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list
apt-get -y update
apt-get -y install google-chrome-stable

# install chrome driver
wget https://chromedriver.storage.googleapis.com/77.0.3865.40/chromedriver_linux64.zip
unzip chromedriver_linux64.zip
mv chromedriver /usr/bin/chromedriver
chown root:root /usr/bin/chromedriver
chmod +x /usr/bin/chromedriver

Install selenium:

pip install selenium

and run this Python code:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
options = Options()
options.add_argument("no-sandbox")
options.add_argument("headless")
options.add_argument("start-maximized")
options.add_argument("window-size=1900,1080"); 
driver = webdriver.Chrome(chrome_options=options, executable_path="/usr/bin/chromedriver")
driver.get("https://www.example.com")
html = driver.page_source
print(html)

来源：https://stackoverflow.com/questions/53657215/running-selenium-with-headless-chrome-webdriver

标签

python

selenium

google-chrome

selenium-chromedriver

google-chrome-headless