selenium爬取lagou
2019-07-24 09:16:39来源:博客园 阅读 ()
from selenium import webdriver import time from lxml import etree import re class LagouSpider(object): def __init__(self): self.driver = webdriver.Chrome() self.url = "https://www.lagou.com/jobs/list_python?px=default&city=%E5%85%A8%E5%9B%BD#filterBox" def run(self): self.driver.get(self.url) while True: source = self.driver.page_source self.parse_page_list(source) next_btn = self.driver.find_element_by_xpath("//div[@class='pager_container']/span[last()]") if "pager_next_disabled" in next_btn.get_attribute("class"): break else: next_btn.click() def parse_page_list(self, source): html = etree.HTML(source) detail_urls = html.xpath("//div/a[@class='position_link']/@href") for detail_url in detail_urls: self.get_detail_page(detail_url) time.sleep(1) def get_detail_page(self, detail_url): # self.driver.get(detail_url) # 新打开一个窗口 self.driver.execute_script("window.open('%s')" % detail_url) self.driver.switch_to.window(self.driver.window_handles[1]) source = self.driver.page_source self.parse_datail_page(source) # 关闭该窗口 self.driver.close() # 继续切换回职位列表页 self.driver.switch_to.window(self.driver.window_handles[0]) def parse_datail_page(self, source): html = etree.HTML(source) job_name = html.xpath("//div[@class='job-name']/h2/text()")[0].strip() job_request_spans = html.xpath("//dd[@class='job_request']//span") job_salary = job_request_spans[0].xpath("./text()")[0].strip() city = job_request_spans[1].xpath("./text()")[0].strip() city = re.sub(r'[/\s]', '', city) work_year = job_request_spans[2].xpath("./text()")[0].strip() work_year = re.sub(r'[/\s]', '', work_year) education = job_request_spans[3].xpath("./text()")[0].strip() education = re.sub(r'[/\s]', '', education) company_name = html.xpath("//h3[@class='fl']//text()")[0].strip() desc = "".join(html.xpath("//dl[@id='job_detail']/dd[@class='job_bt']//text()")).strip() desc = re.sub(r'[/\s\\xa]', '', desc) position = { "name": job_name, "job_salary": job_salary, "city": city, "work_year": work_year, "education": education, "company_name": company_name, "desc": desc } print(position) lagou = LagouSpider() lagou.run()
原文链接:https://www.cnblogs.com/ForT/p/11152098.html
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