打开已存在的浏览器

打开已存在的浏览器有个很重要的作用就是，可以对于一些登录场景，提前登录好，不需要模拟登录了。

在命令行中执行打开chrome的命令，在图标上找到chrome的安装位置

在cmd命令行下执行命令

C:\Program Files\Google\Chrome\Application>chrome.exe –remote-debugging-port=9222

此时调试模式会监听9222端口

模拟打开百度，并进行搜索

import time


from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.chrome.options import Options
import pygetwindow as gw

try:
    chrome_options = Options()
    chrome_options.add_experimental_option(“debuggerAddress”, “127.0.0.1:9222”)
    browser = webdriver.Chrome(options=chrome_options)
    print(“浏览器已打开”+browser.title)
    # 切换到前台
    windows = gw.getWindowsWithTitle(browser.title)
    if len(windows) > 0:
        windows[0].activate()
    time.sleep(1)

# 新建新标签
browser<span class="token punctuation">.</span><span class="token function">execute_script</span><span class="token punctuation">(</span><span class="token string">"window.open('');"</span><span class="token punctuation">)</span>
browser<span class="token punctuation">.</span>switch_to<span class="token punctuation">.</span><span class="token function">window</span><span class="token punctuation">(</span>browser<span class="token punctuation">.</span>window_handles<span class="token punctuation">[</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
time<span class="token punctuation">.</span><span class="token function">sleep</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">)</span>

# 在新标签页中打开一个URL
browser<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">'https://www.baidu.com/'</span><span class="token punctuation">)</span>
# 输入搜索词并回车
elem <span class="token operator">=</span> browser<span class="token punctuation">.</span><span class="token function">find_element</span><span class="token punctuation">(</span>By<span class="token punctuation">.</span>ID<span class="token punctuation">,</span> <span class="token string">"kw"</span><span class="token punctuation">)</span>
elem<span class="token punctuation">.</span><span class="token function">send_keys</span><span class="token punctuation">(</span><span class="token string">"唯一客服"</span><span class="token punctuation">)</span>
elem<span class="token punctuation">.</span><span class="token function">send_keys</span><span class="token punctuation">(</span>Keys<span class="token punctuation">.</span>RETURN<span class="token punctuation">)</span>

<span class="token function">print</span><span class="token punctuation">(</span><span class="token string">"获取搜索列表："</span><span class="token punctuation">)</span>
# 使用WebDriverWait确保搜索结果已经加载
<span class="token function">WebDriverWait</span><span class="token punctuation">(</span>browser<span class="token punctuation">,</span> <span class="token number">10</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">until</span><span class="token punctuation">(</span>
    EC<span class="token punctuation">.</span><span class="token function">presence_of_all_elements_located</span><span class="token punctuation">(</span><span class="token punctuation">(</span>By<span class="token punctuation">.</span>XPATH<span class="token punctuation">,</span> <span class="token string">"//div[@id='content_left']//h3/a"</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token punctuation">)</span>
# 获取所有的搜索结果标题
results <span class="token operator">=</span> browser<span class="token punctuation">.</span><span class="token function">find_elements</span><span class="token punctuation">(</span>By<span class="token punctuation">.</span>XPATH<span class="token punctuation">,</span> <span class="token string">"//div[@id='content_left']//h3/a"</span><span class="token punctuation">)</span>
<span class="token keyword">for</span> result <span class="token keyword">in</span> results<span class="token punctuation">:</span>
    <span class="token function">print</span><span class="token punctuation">(</span>result<span class="token punctuation">.</span>text<span class="token punctuation">)</span>

# 关闭标签
browser<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span>


except Exception as e:
    print(“An error occurred:”, e)