Scrapy第十二篇：selenium4模拟器-本地代理

1.正常使用selenium访问百度：调试模式会被浏览器检测到。

import time
 
from selenium import webdriver
from selenium.webdriver.chrome.service import Service as ChromeService
from webdriver_manager.chrome import ChromeDriverManager
 
if __name__ == '__main__':
 
    # 初始化驱动
    service = ChromeService(executable_path=ChromeDriverManager().install())
    # 配置
    options = webdriver.ChromeOptions()
    # 获取浏览器实例
    driver = webdriver.Chrome(service=service, options=options)
 
    # 访问百度
    driver.get("https://www.baidu.com/")
    time.sleep(5)
    # 销毁实例
    driver.quit()

2.使用代理浏览器selenium访问百度：真正的用户操作

import os
import time
 
from selenium import webdriver
from selenium.webdriver.chrome.service import Service as ChromeService
from webdriver_manager.chrome import ChromeDriverManager
 
if __name__ == '__main__':
    # 本地谷歌浏览器地址
    chrome_path = "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
    # 打开代理浏览器
    os.popen(rf'"{chrome_path}" --remote-debugging-port=9222 --user-data-dir="C:\selenum\AutomationProfile"')
 
    # 初始化驱动
    service = ChromeService(executable_path=ChromeDriverManager().install())
    # 配置
    options = webdriver.ChromeOptions()
    # 配置代理参数
    options.add_experimental_option('debuggerAddress', 'localhost:9222')
    # 获取浏览器实例
    driver = webdriver.Chrome(service=service, options=options)
 
    # 访问百度
    driver.get("https://www.baidu.com/")
    time.sleep(5)
    # 销毁实例
    driver.quit()

3.selenium本地代理中间件：

class SeleniumMiddleware(object):
    def __init__(self):
        super().__init__()
        # 本地谷歌浏览器地址
        chrome_path = rf"C:\Users\Lenovo\AppData\Local\Google\Chrome\Application\chrome.exe"
        # 打开代理浏览器
        os.popen(rf'"{chrome_path}" --remote-debugging-port=9222 --user-data-dir="C:\selenum\AutomationProfile"')
 
    def process_response(self, request, response, spider):
        # 初始化驱动
        service = ChromeService(executable_path=ChromeDriverManager().install())
        # 配置代理
        options = webdriver.ChromeOptions()
        options.add_experimental_option('debuggerAddress', '127.0.0.1:9222')
        # 获取浏览器实例
        driver = webdriver.Chrome(service=service, options=options)
 
        # 访问网页
        driver.get(request.url)
        # 最小化
        driver.minimize_window()
        # 全屏
        driver.maximize_window()
        # 指定大小
        driver.set_window_rect(0, 0, 1000, 500)
        # 获取关键字输入框
        input_element = WebDriverWait(driver, timeout=3).until(lambda d: d.find_element(By.ID, "kw"))
        # 输入搜索关键字
        input_element.send_keys("苍穹之跃" + str(random.randint(0, 9)))
        # 获取【百度一下】按钮
        search_button_element = WebDriverWait(driver, timeout=3).until(lambda d: d.find_element(By.ID, "su"))
        # 点击
        search_button_element.click()
 
        # 动态加载后的网页
        html = driver.page_source
        # 退出浏览器
        driver.quit()
        return scrapy.http.HtmlResponse(url=request.url, body=html.encode('utf-8'), encoding='utf-8', request=request)

开启中间件：

DOWNLOADER_MIDDLEWARES = {
   'testproject.middlewares.SeleniumMiddleware': 543,
}

4.selenium本地代理中间件-多线程并发：

未实现