Java 如何在chrome中单击打印预览页面上的“取消”按钮?
在chrome中打开打印窗口后,我需要单击取消按钮 我尝试了下面的代码,但它不工作Java 如何在chrome中单击打印预览页面上的“取消”按钮?,java,selenium,google-chrome,Java,Selenium,Google Chrome,在chrome中打开打印窗口后,我需要单击取消按钮 我尝试了下面的代码,但它不工作 driver.switchTo().window(driver.getWindowHandles().toArray()[1].toString()); JavascriptExecutor executor = (JavascriptExecutor) driver.getWebDriver(); executor.executeScript("document.querySelector(\"print-pr
driver.switchTo().window(driver.getWindowHandles().toArray()[1].toString());
JavascriptExecutor executor = (JavascriptExecutor) driver.getWebDriver();
executor.executeScript("document.querySelector(\"print-preview-app\").shadowRoot.querySelector(\"print-preview-header\").shadowRoot.querySelector(\"paper-button.cancel-button\").click();");
我认为,与打印窗口交互,目前在selenium中是不可能的。请参阅问题,了解详细说明和使用另一个测试工具Robot的可能解决方法。我认为,使用selenium目前不可能与打印窗口交互。请参阅问题,了解详细说明以及使用另一个测试工具Robot的可能解决方法。这至少是Selenium目前无法做到的。 你必须用另一种方法来代替 下面是一个简化的python实现调用。 您需要先安装 将以下两个文件放在一个文件夹中并运行Chrome_Print.py,然后Selenium将打开StackOverflow,等待500毫秒并打开Chrome Print窗口,然后等待2秒钟并退出 您可以创建一个类似的Java实现 正如您所看到的,这种方法可以自动使用,但是睡眠时间是硬编码的,并且取决于特定的机器。此外,它还需要在处理时始终聚焦窗口 Chrome_Print.py
from selenium import webdriver
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.chrome.options import Options
import sys, os, psutil, win32process, win32gui, win32api, time
def get_hwnds_from_pid(pid):
def EnumWindowsProc(hwnd, hwnds):
if win32gui.IsWindowVisible(hwnd) and win32gui.IsWindowEnabled(hwnd):
returned_tid, returned_pid = win32process.GetWindowThreadProcessId(hwnd)
if returned_pid == pid:
hwnds.append(hwnd)
return True
hwnds = []
win32gui.EnumWindows(EnumWindowsProc, hwnds)
return hwnds
driveroptions = Options()
driveroptions.add_argument('--incognito')
driveroptions.add_argument('--disable-infobars')
driveroptions.add_argument('--start-maximized')
driver = webdriver.Chrome(options=driveroptions)
driver.set_page_load_timeout(40)
wait = WebDriverWait(driver, 40)
driver.get("https://www.stackoverflow.com")
wait.until(EC.presence_of_element_located((By.XPATH, '/html/body/div[@class="container"]/div[@id="content"]')), "Waiting For Content Timeout")
current_python_pid = os.getpid()
current_python_process = psutil.Process(current_python_pid)
chromedriver_process_list = current_python_process.children(recursive=False)
chromedriver_process = chromedriver_process_list[0]
chrome_process_list = chromedriver_process.children(recursive=False)
chrome_process = chrome_process_list[0]
chrome_hwnd_list = get_hwnds_from_pid(chrome_process.pid)
win32api.ShellExecute(chrome_hwnd_list[0], 'open', "ChromePage_Print.ahk", str(chrome_hwnd_list[0]), os.getcwd(), 1)
time.sleep(4)
driver.quit()
ChromePage_Print.ahk
#NoEnv ; Recommended for performance and compatibility with future AutoHotkey releases.
; #Warn ; Enable warnings to assist with detecting common errors.
SendMode Input ; Recommended for new scripts due to its superior speed and reliability.
SetWorkingDir %A_ScriptDir% ; Ensures a consistent starting directory.
Chrome_HWND = %1%
WinActivate, ahk_id %Chrome_HWND%
Sleep, 500
SendInput ^p
Sleep, 2000
SendInput {Esc}
Sleep, 800
这超出了硒的作用,至少现在是这样。 你必须用另一种方法来代替 下面是一个简化的python实现调用。 您需要先安装 将以下两个文件放在一个文件夹中并运行Chrome_Print.py,然后Selenium将打开StackOverflow,等待500毫秒并打开Chrome Print窗口,然后等待2秒钟并退出 您可以创建一个类似的Java实现 正如您所看到的,这种方法可以自动使用,但是睡眠时间是硬编码的,并且取决于特定的机器。此外,它还需要在处理时始终聚焦窗口 Chrome_Print.py
from selenium import webdriver
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.chrome.options import Options
import sys, os, psutil, win32process, win32gui, win32api, time
def get_hwnds_from_pid(pid):
def EnumWindowsProc(hwnd, hwnds):
if win32gui.IsWindowVisible(hwnd) and win32gui.IsWindowEnabled(hwnd):
returned_tid, returned_pid = win32process.GetWindowThreadProcessId(hwnd)
if returned_pid == pid:
hwnds.append(hwnd)
return True
hwnds = []
win32gui.EnumWindows(EnumWindowsProc, hwnds)
return hwnds
driveroptions = Options()
driveroptions.add_argument('--incognito')
driveroptions.add_argument('--disable-infobars')
driveroptions.add_argument('--start-maximized')
driver = webdriver.Chrome(options=driveroptions)
driver.set_page_load_timeout(40)
wait = WebDriverWait(driver, 40)
driver.get("https://www.stackoverflow.com")
wait.until(EC.presence_of_element_located((By.XPATH, '/html/body/div[@class="container"]/div[@id="content"]')), "Waiting For Content Timeout")
current_python_pid = os.getpid()
current_python_process = psutil.Process(current_python_pid)
chromedriver_process_list = current_python_process.children(recursive=False)
chromedriver_process = chromedriver_process_list[0]
chrome_process_list = chromedriver_process.children(recursive=False)
chrome_process = chrome_process_list[0]
chrome_hwnd_list = get_hwnds_from_pid(chrome_process.pid)
win32api.ShellExecute(chrome_hwnd_list[0], 'open', "ChromePage_Print.ahk", str(chrome_hwnd_list[0]), os.getcwd(), 1)
time.sleep(4)
driver.quit()
ChromePage_Print.ahk
#NoEnv ; Recommended for performance and compatibility with future AutoHotkey releases.
; #Warn ; Enable warnings to assist with detecting common errors.
SendMode Input ; Recommended for new scripts due to its superior speed and reliability.
SetWorkingDir %A_ScriptDir% ; Ensures a consistent starting directory.
Chrome_HWND = %1%
WinActivate, ahk_id %Chrome_HWND%
Sleep, 500
SendInput ^p
Sleep, 2000
SendInput {Esc}
Sleep, 800
我们现在正在测试中这样做,这里唯一的一个大警告是,这个面板的HTML似乎经常更改,所以请注意这一点。
75.0.3770.100版(官方版本)(64位)
所需的代码如下:
executor.executeScript(
"document"
+ ".querySelector('print-preview-app')
+ ".shadowRoot"
+ ".querySelector('print-preview-sidebar')
+ ".shadowRoot"
+ ".querySelector('print-preview-header')
+ ".shadowRoot"
+ ".querySelector('.cancel-button')
+ ".click();"
);
我们现在正在测试中这样做,这里唯一的一个大警告是,这个面板的HTML似乎经常更改,所以请注意这一点。
75.0.3770.100版(官方版本)(64位)
所需的代码如下:
executor.executeScript(
"document"
+ ".querySelector('print-preview-app')
+ ".shadowRoot"
+ ".querySelector('print-preview-sidebar')
+ ".shadowRoot"
+ ".querySelector('print-preview-header')
+ ".shadowRoot"
+ ".querySelector('.cancel-button')
+ ".click();"
);