在导航到下一页并使用网站上的 selenium 抓取所有数据时出错？

Question

嗨，我正在尝试从https://www.naukri.com/这个 url 中抓取所有教师工作，我想要所有页面数据，但我只获得一页数据并收到此错误

Traceback (most recent call last):
  File "naukri.py", line 48, in <module>
    driver.execute_script("arguments.click();", next_page)
  File "/home/nyros/Documents/mypython/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 636, in execute_script
    'args': converted_args})['value']
  File "/home/nyros/Documents/mypython/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "/home/nyros/Documents/mypython/lib/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.JavascriptException: Message: javascript error: arguments.click is not a function
  (Session info: chrome=80.0.3987.116)

我写的代码是：

import selenium.webdriver

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
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait

from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait

url ='https://www.naukri.com/'
driver = webdriver.Chrome(r"mypython/bin/chromedriver_linux64/chromedriver")


driver.get(url)
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CSS_SELECTOR, '#qsbClick > span.blueBtn'))).click()
driver.find_element_by_xpath('//*[@id="skill"]/div[1]/div[2]/input').send_keys("teacher")
driver.find_element_by_xpath('//*[@id="qsbFormBtn"]').click()

data = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.CLASS_NAME, "srp_container.fl")))
result = WebDriverWait(data, 10).until(
    EC.presence_of_all_elements_located((By.CLASS_NAME, "row")))
for r in result:
    data = WebDriverWait(driver, 10).until(
        EC.presence_of_element_located((By.CLASS_NAME, "srp_container.fl")))
    result = WebDriverWait(data, 10).until(
        EC.presence_of_all_elements_located((By.CLASS_NAME, "row")))
    for r in result:
        try:
            title=r.find_element_by_class_name("desig").text
            print('title:',title)
            school=r.find_element_by_class_name("org").text
            print('school:',school)
            location=r.find_element_by_class_name("loc").text
            print("location:",location)
            salary=r.find_element_by_class_name("salary").text
            print("salary:",salary)
        except:
            pass
            print('-------')
    next_page = r.find_elements_by_xpath("/html/body/div[5]/div/div[3]/div[1]/div[59]/a/button")
    driver.execute_script("arguments.click();", next_page)

请任何人帮助我 在此先感谢！

Answer 1

由于“下一步”按钮的元素索引从第一页的 59 变为下一页的 60，因此您可以找到页面上所有类为"grayBtn"元素，然后单击该按钮的索引 [-1]返回列表，因为这将始终提供下一个按钮。 我也删除了一些不必要的代码部分，例如重复导入以及不必要的按钮点击。 我立即定向到包含教师结果列表的页面，而不是在主页的搜索字段中输入“教师”。 我只剩下以下内容：

from selenium import webdriver
import time
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
import re    

Category = input("Category?")
Category = re.sub(" ", "%20", Category)
Type = re.sub(" ", "-", Category.lower())

url ='https://www.naukri.com/' + Type + '-jobs?k=' + Category
driver = webdriver.Chrome(r"mypython/bin/chromedriver_linux64/chromedriver")
driver.get(url)

data = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.CLASS_NAME, "srp_container.fl")))
result = WebDriverWait(data, 10).until(
    EC.presence_of_all_elements_located((By.CLASS_NAME, "row")))
for res in result:
    data = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.CLASS_NAME, "srp_container.fl")))
    jobs = WebDriverWait(data, 10).until(EC.presence_of_all_elements_located((By.CLASS_NAME, "row")))
    for job in jobs:
        try:
            title=job.find_element_by_class_name("desig").text
            print('title:',title)
            school=job.find_element_by_class_name("org").text
            print('school:',school)
            location=job.find_element_by_class_name("loc").text
            print("location:",location)
            salary=job.find_element_by_class_name("salary").text
            print("salary:",salary)
        except:
            pass
            print('-------')
    Button = driver.find_elements_by_class_name("grayBtn")[-1]
    time.sleep(1)
    driver.execute_script("window.scrollTo(0,document.body.scrollHeight - 1300)")
    Button.click()

根据要求，这里是将数据附加到 Pandas 数据帧并将数据帧转换为 excel 的修改后的代码：

from selenium import webdriver
import time
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
import re
import pandas as pd

df = pd.DataFrame(columns = ['Title', 'School', 'Location', 'Salary'])

Category = input("Category?")
Category = re.sub(" ", "%20", Category)
Type = re.sub(" ", "-", Category.lower())

url ='https://www.naukri.com/' + Type + '-jobs?k=' + Category
driver = webdriver.Chrome(r"mypython/bin/chromedriver_linux64/chromedriver")
driver.get(url)

data = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.CLASS_NAME, "srp_container.fl")))
result = WebDriverWait(data, 10).until(
    EC.presence_of_all_elements_located((By.CLASS_NAME, "row")))
i = 0
for res in result:
    data = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.CLASS_NAME, "srp_container.fl")))
    jobs = WebDriverWait(data, 10).until(EC.presence_of_all_elements_located((By.CLASS_NAME, "row")))
    for job in jobs:
        try:
            title=job.find_element_by_class_name("desig").text
            print('title:',title)
            school=job.find_element_by_class_name("org").text
            print('school:',school)
            location=job.find_element_by_class_name("loc").text
            print("location:",location)
            salary=job.find_element_by_class_name("salary").text
            print("salary:",salary)
            df.loc[i] = [title, school, location, salary]
            i += 1
        except:
            pass
            print('-------')
    Button = driver.find_elements_by_class_name("grayBtn")[-1]
    time.sleep(1)
    driver.execute_script("window.scrollTo(0,document.body.scrollHeight - 1300)")
    Button.click()
df.to_excel("all_results.xlsx")