Python爬虫 senlenium爬取拉勾网招聘数据,你学会了吗

tech2022-12-04  30

一、基本思路

目标url:https://www.lagou.com/

用selenium爬虫实现,输入任意关键字,比如 python 数据分析 ,点击搜索,得到的有关岗位信息,爬取下来保存到Excel。

 

 

有30页,每个页面有15条招聘信息。

二、selenium爬虫 from selenium import webdriverimport timeimport loggingimport randomimport openpyxlwb = openpyxl.Workbook()sheet = wb.activesheet.append(['job_name', 'company_name', 'city','industry', 'salary', 'experience_edu','welfare','job_label'])logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s: %(message)s')def search_product(key_word): browser.find_element_by_id('cboxClose').click() # 关闭让你选城市的窗口 time.sleep(2) browser.find_element_by_id('search_input').send_keys(key_word) # 定位搜索框 输入关键字 browser.find_element_by_class_name('search_button').click() # 点击搜索 browser.maximize_window() # 最大化窗口 time.sleep(2) browser.find_element_by_class_name('body-btn').click() # 关闭弹窗 啥领取红包窗口 time.sleep(random.randint(1, 3)) browser.execute_script("scroll(0,3000)") # 下拉滚动条 get_data() # 调用抓取数据的函数 # 模拟点击下一页 翻页爬取数据 每爬取一页数据 休眠 控制抓取速度 防止被反爬 让输验证码 for i in range(29): browser.find_element_by_class_name('pager_next ').click() time.sleep(1) browser.execute_script("scroll(0,3000)") get_data() time.sleep(random.randint(3, 5))def get_data(): items = browser.find_elements_by_xpath('//*[@id="s_position_list"]/ul/li') for item in items: job_name = item.find_element_by_xpath('.//div[@class="p_top"]/a/h3').text company_name = item.find_element_by_xpath('.//div[@class="company_name"]').text city = item.find_element_by_xpath('.//div[@class="p_top"]/a/span[@class="add"]/em').text industry = item.find_element_by_xpath('.//div[@class="industry"]').text salary = item.find_element_by_xpath('.//span[@class="money"]').text experience_edu = item.find_element_by_xpath('.//div[@class="p_bot"]/div[@class="li_b_l"]').text welfare = item.find_element_by_xpath('.//div[@class="li_b_r"]').text job_label = item.find_element_by_xpath('.//div[@class="list_item_bot"]/div[@class="li_b_l"]').text data = f'{job_name},{company_name},{city},{industry},{salary},{experience_edu},{welfare},{job_label}' logging.info(data) sheet.append([job_name, company_name, city,industry, salary, experience_edu, welfare, job_label])def main(): browser.get('https://www.lagou.com/') time.sleep(random.randint(1, 3)) search_product(keyword) wb.save('job_info.xlsx')if __name__ == '__main__': keyword = 'Python 数据分析' # chromedriver.exe的路径 chrome_driver = r'D:\python\pycharm2020\chromedriver.exe' options = webdriver.ChromeOptions() # 关闭左上方 Chrome 正受到自动测试软件的控制的提示 options.add_experimental_option('useAutomationExtension', False) options.add_experimental_option("excludeSwitches", ['enable-automation']) browser = webdriver.Chrome(options=options, executable_path=chrome_driver) main() browser.quit()

爬虫运行,成功爬取数据并保存到Excel,运行结果如下:

 

三、查看数据

如果大家对Python感兴趣的话,可以加一下老师的微信哦:abb436574,免费领取一套学习资料和视频课程哟~

 

 

最新回复(0)