我尝试使用selenium网络驱动程序从网站上搜索搜索结果。在我搜索某些内容后，页面底部会显示一个按钮，以显示更多搜索结果。
这是网站上的代码：
<a id="more_results_link" class="but-g but-g-normal" onclick="return changeSuche('more_results',30,null,true);" style="width:600px; float:none; margin:20px auto 0px auto;" href="#">Weitere anzeigen (+30)</a>
这就是我尝试（成功）按下代码中的按钮的方式：
moreElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_xpath(".//*[@id='more_results_link']"))
moreElement.click()
现在，我想再次按下该按钮，但现在它不起作用（我查看了Fire Path，以及XPath .//* [/ id =＆＃39; more_results_link＆＃39; ]仍然导致那个按钮）。相反，我收到以下错误消息：
Traceback (most recent call last):
File "test.py", line 56, in test_Login
moreElement.click()
File "/usr/local/lib/python2.7/site-packages/selenium/webdriver/remote/webelement.py", line 75, in click
self._execute(Command.CLICK_ELEMENT)
File "/usr/local/lib/python2.7/site-packages/selenium/webdriver/remote/webelement.py", line 454, in _execute
return self._parent.execute(command, params)
File "/usr/local/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 201, in execute
self.error_handler.check_response(response)
File "/usr/local/lib/python2.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 107, in check_response
message = value["value"]["message"]
TypeError: string indices must be integers
知道如何解决问题吗？理想情况下（并且更优雅）我想实现一个循环，只要它存在就点击该按钮（如果没有更多的搜索结果按钮消失）。
编辑：
这是我的完整代码：
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support.select import Select
import unittest
import csv
class LoginTest(unittest.TestCase):
def setUp(self):
self.driver = webdriver.Firefox()
def test_Login(self):
driver = self.driver
# enter output file
with open('test.csv','w') as f:
file = csv.writer(f)
file.writerow(("bla", "blub"))
# enter input file
with open('NRWPLZ.csv') as csvfile:
readCSV = csv.reader(csvfile,delimiter=',')
for row in readCSV:
self.driver.get("URL")
type = "Allgemeinarzt"
city = row[0]
print(city)
typeFieldID = "what"
cityFieldID = "where"
submitButtonXPath = "//*[@id='suche']/form/div[5]/div/input"
typeFieldElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_id(typeFieldID))
cityFieldElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_id(cityFieldID))
submitButtonElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_xpath(submitButtonXPath))
typeFieldElement.clear()
typeFieldElement.send_keys(type)
cityFieldElement.clear()
cityFieldElement.send_keys(city)
submitButtonElement.click()
while driver.find_element_by_xpath(".//*[@id='more_results_link']"):
moreElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_xpath(".//*[@id='more_results_link']"))
moreElement.click()
print("ok")
with open('test.csv','a') as f:
file = csv.writer(f)
select = Select(driver.find_element_by_id("select_sort"))
select.select_by_visible_text("Entfernung")
print("dist")
count = len(driver.find_elements_by_xpath(".//*[@id='ansicht-ergebnisliste']/div"))
print(count)
for i in range(1,count):
try:
print(i)
nameXPath = str(".//*[@id='ansicht-ergebnisliste']/div[") + str(i) + str("]/div[4]/h2/a")
addressXPath = str(".//*[@id='ansicht-ergebnisliste']/div[") +str(i)+ str("]/div[4]/p[1]")
gradeXPath = str(".//*[@id='ansicht-ergebnisliste']/div[") + str(i) + str("]/div[3]/div[2]/div[1]")
reviewsXPath = str(".//*[@id='ansicht-ergebnisliste']/div[") + str(i) + str("]/div[3]/div[3]/a")
recommendationsXPath = str(".//*[@id='ansicht-ergebnisliste']/div[") + str(i) + str("]/div[3]/div[3]/div[1]/strong")
gp = str(WebDriverWait(driver, 1).until(lambda driver: driver.find_element_by_xpath(nameXPath)).text.encode("utf-8"))
address = str(WebDriverWait(driver, 1).until(lambda driver: driver.find_element_by_xpath(addressXPath)).text.encode("utf-8"))
grade = str(WebDriverWait(driver, 1).until(lambda driver: driver.find_element_by_xpath(gradeXPath)).text.encode("utf-8"))
reviews = str(WebDriverWait(driver, 1).until(lambda driver: driver.find_element_by_xpath(reviewsXPath)).text.encode("utf-8"))
recommendations = str(WebDriverWait(driver, 1).until(lambda driver: driver.find_element_by_xpath(recommendationsXPath)).text.encode("utf-8"))
file.writerow([''.join(gp.split()),''.join(address.split()),''.join(grade.split()),''.join(reviews.split()),''.join(recommendations.split())])
except:
pass
def tearDown(self):
self.driver.quit()
if __name__ == '__main__':
unittest.main()
EDIT2：
我想出了如何第二次按下按钮。诀窍是等到第二个结果的第一个元素＆＃34;批次＆＃34;装了。但是，出于某种原因，在我加载下一个结果页面后，网站不允许我按距离对结果进行排序（从下拉框中选择选项）。所以我首先要对结果进行排序，然后加载下一个结果页面。
换句话说，我想运行以下代码：
select = Select(WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_id("select_sort")))
select.select_by_visible_text("Entfernung")
moreElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_xpath(".//*[@id='more_results_link']"))
moreElement.click()
WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_xpath(".//*[@id='ansicht-ergebnisliste']/div[31]/div[4]/h2/a"))
moreElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_xpath(".//*[@id='more_results_link']"))
moreElement.click()
WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_xpath(".//*[@id='ansicht-ergebnisliste']/div[61]/div[4]/h2/a"))
但是这给了我以下错误消息：
Error
Traceback (most recent call last):
File "/Users/Jonas/PycharmProjects/jameda/test.py", line 54, in test_Login
moreElement.click()
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/remote/webelement.py", line 75, in click
self._execute(Command.CLICK_ELEMENT)
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/remote/webelement.py", line 454, in _execute
return self._parent.execute(command, params)
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/remote/webdriver.py", line 201, in execute
self.error_handler.check_response(response)
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/remote/errorhandler.py", line 107, in check_response
message = value["value"]["message"]
TypeError: string indices must be integers
任何想法如何解决这个问题？
答案 0 :(得分：1)
感谢大家的评论。
我最终找到了解决方案：我在每个操作后插入time.sleep(2)（例如从下拉列表中选择一个选项，然后点击按钮），现在它工作正常