环境

python3.5
pip install selenium
phantomjs-2.1.1
pip install pyquery

代码

# -*- coding:utf-8 -*-# 防止print中文出错
import time
import sys
import io
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='gb18030')from pyquery import PyQuery as pq
from selenium import webdriver
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.common.desired_capabilities import DesiredCapabilities# 给phantomjs设置请求头
dcap = dict(DesiredCapabilities.PHANTOMJS)
dcap["phantomjs.page.settings.userAgent"] = ("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.101 Safari/537.36"
)
driver = webdriver.PhantomJS(desired_capabilities=dcap, executable_path=r"C:\Users\DELL\Desktop\Scrapy\phantomjs-2.1.1-windows\bin\phantomjs.exe")
driver.set_window_size(400, 100)# 模拟登陆
def login(login_url, username, password):print("begin login...")try:driver.get(login_url)driver.find_element_by_css_selector(".input_item.clearfix[data-propertyname='username'] input").send_keys(username)driver.find_element_by_css_selector(".input_item.clearfix[data-propertyname='password'] input").send_keys(password)driver.find_element_by_css_selector(".input_item.btn_group.clearfix[data-propertyname='submit'] input").click()except:print("login wrong...")# 模拟搜索
def search_position(position_name):print("search position {}".format(position_name))try:search_input = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, "search_input")))search_input.send_keys(position_name)search_btn = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, "search_button")))search_btn.click()except:print("search wrong...")# 递归,逐页解析页面
def parse_html():print("begin parse html...")try:next_page_label = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.CSS_SELECTOR, ".item_con_pager .pager_container span:last-child")))html = pq(driver.page_source)items = html("#s_position_list .item_con_list li.con_list_item.default_list").items()for item in items:print(item.attr("data-company"))print(item.attr("data-positionname"))print(item.attr("data-salary"))print(item("a.position_link").attr("href"))print("\n")next_page_label.click()time.sleep(3)parse_html()except Exception as e:print(str(e))if __name__ == "__main__":login_url = "https://passport.lagou.com/login/login.html?ts=1508055021059&serviceId=lagou&service=https%253A%252F%252Fwww.lagou.com%252F&action=login&signature=101A9F09764AD83E3E2A035A1506AF7A"username = "用户名"password = "用户密码"login(login_url, username, password)search_position("python")parse_html()