我有一个 python 脚本，它试图自动下载一个 excel 文件。我试图直接处理 firefox 配置文件并且它工作正常:
path = '\\path\\to\\firefox\\default\\profile\\'
fp = webdriver.FirefoxProfile(path)
driver = webdriver.Firefox(firefox_profile=fp)
driver.maximize_window()
driver.get('url')
driver.find_element_by_id('downloadButton').click()
time.sleep(5)
driver.close()
但是当我尝试以编程方式设置配置文件时，它不起作用；仍然有下载弹窗:
fp = webdriver.FirefoxProfile()
fp.set_preference('browser.download.folderList', 2)
fp.set_preference('browser.download.manager.showWhenStarting', False)
fp.set_preference('browser.download.dir', os.getcwd())
fp.set_preference('browser.helperApps.neverAsk.saveToDisk', 'text/csv/xls/xlsx')
driver = webdriver.Firefox(firefox_profile=fp)
driver.maximize_window()
driver.get('url')
driver.find_element_by_id('downloadButton').click()
time.sleep(5)
driver.close()
我还将行 fp.set_preference('browser.helperApps.neverAsk.saveToDisk', 'text/csv/xls/xlsx') 更改为 fp.set_preference('browser. helperApps.neverAsk.saveToDisk', ('application/vnd.ms-excel'));但没有任何变化。
知道我做错了什么吗？
编辑 1:
我试过了
fp.set_preference('browser.helperApps.neverAsk.saveToDisk', "text/plain, application/vnd.ms-excel, text/csv, text/comma-separated-values, application/octet-stream")
和
fp.set_preference('browser.helperApps.neverAsk.saveToDisk', "text/plain, application/vnd.ms-excel, text/csv, text/comma-separated-values, application/octet-stream, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
结果没有变化。
请您参考如下方法:
根据 about:config文档，browser.helperApps.neverAsk.saveToDisk 首选项值应该是逗号分隔的 MIME 类型列表。
这个应该适合你:
fp.set_preference('browser.helperApps.neverAsk.saveToDisk', "text/plain, application/vnd.ms-excel, text/csv, text/comma-separated-values, application/octet-stream")
演示(使用 XLSX Sample 网页):
import os
from selenium import webdriver
import time
url = "http://file-sample.com/xlsx/"
# configuring profile
fp = webdriver.FirefoxProfile()
fp.set_preference('browser.download.folderList', 2)
fp.set_preference('browser.download.manager.showWhenStarting', False)
fp.set_preference('browser.download.dir', os.getcwd())
fp.set_preference('browser.helperApps.neverAsk.saveToDisk', 'text/plain, application/vnd.ms-excel, text/csv, text/comma-separated-values, application/octet-stream, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')
# open the web page and download the file
driver = webdriver.Firefox(firefox_profile=fp)
driver.maximize_window()
driver.get(url)
driver.find_element_by_xpath('//div[@class="post-entry"]//a').click()
time.sleep(5)
driver.close()
结果，文件被下载到当前工作目录。
