自动执行浏览器操作 - 单击提交按钮错误 - “单击成功但加载失败...”

Question

我正在尝试编写一个自动登录到两个网站并转到某个页面的代码。我使用Splinter。

我只使用PhantomJS作为浏览器类型在“Mijn ING Zakelijk”网站上收到错误。

直到几天前，代码在20次中完成了20次。但是从今天起我就收到了错误。有时代码运行正常。其他时候它没有，并给我“点击成功，但加载失败..”错误。这是完整的追溯：

## Attempting to login to Mijn ING Zakelijk, please wait.
- Starting the browser..
- Visiting the url..
- Filling the username form with the defined username..
- Filling the password form with the defined password..
- Clicking the submit button..
Traceback (most recent call last):
  File "/Users/###/Dropbox/Python/Test environment 2.7.3/Splinter.py", line 98, in <module>
    mijning()
  File "/Users/###/Dropbox/Python/Test environment 2.7.3/Splinter.py", line 27, in mijning
    attemptLogin(url2, username2, password2, defined_title2, website_name2, browser_type2)
  File "/Users/###/Dropbox/Python/Test environment 2.7.3/Splinter.py", line 71, in attemptLogin
    browser.find_by_css('.submit').first.click()
  File "/Users/###/Library/Python/2.7/lib/python/site-packages/splinter/driver/webdriver/__init__.py", line 344, in click
    self._element.click()
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/selenium/webdriver/remote/webelement.py", line 54, in click
    self._execute(Command.CLICK_ELEMENT)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/selenium/webdriver/remote/webelement.py", line 228, in _execute
    return self._parent.execute(command, params)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 165, in execute
    self.error_handler.check_response(response)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 158, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: u'Error Message => \'Click succeeded but Load Failed. Status: \'fail\'\'\n caused by Request => {"headers":{"Accept":"application/json","Accept-Encoding":"identity","Connection":"close","Content-Length":"81","Content-Type":"application/json;charset=UTF-8","Host":"127.0.0.1:56899","User-Agent":"Python-urllib/2.7"},"httpVersion":"1.1","method":"POST","post":"{\\"sessionId\\": \\"c2bbc8a0-e3d2-11e2-b7a8-f765797dc4e7\\", \\"id\\": \\":wdc:1372850513087\\"}","url":"/click","urlParsed":{"anchor":"","query":"","file":"click","directory":"/","path":"/click","relative":"/click","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/click","queryKey":{},"chunks":["click"]},"urlOriginal":"/session/c2bbc8a0-e3d2-11e2-b7a8-f765797dc4e7/element/%3Awdc%3A1372850513087/click"}' ; Screenshot: available via screen 

Process finished with exit code 1

这是完整的代码：

## *** Payment Notification and Mail Tool (FPNMT) ##
from splinter import *
from Tkinter import *

def ###():

    # Define values
    browser_type1 = 'phantomjs' # 'phantomjs' or 'firefox'
    url1 = 'http://###.nl/admin'
    username1 = '###'
    password1 = '###'
    defined_title1 = 'Bestellingen'
    website_name1 = '###.nl Admin'

    attemptLogin(url1, username1, password1, defined_title1, website_name1, browser_type1)

def mijning():

    # Define values
    browser_type2 = 'phantomjs' # 'phantomjs' or 'firefox'
    url2 = 'https://mijnzakelijk.ing.nl/internetbankieren/SesamLoginServlet'
    username2 = '###'
    password2 = '###'
    defined_title2 = 'Saldo informatie'
    website_name2 = 'Mijn ING Zakelijk'

    attemptLogin(url2, username2, password2, defined_title2, website_name2, browser_type2)

# Functions #
def attemptLogin(url, username, password, defined_title, website_name, browser_type):
    print '## Attempting to login to ' + website_name + ', please wait.'

    # Start the browser
    print '- Starting the browser..'
    browser = Browser(browser_type)

    # Visit in the url
    print '- Visiting the url..'
    browser.visit(url)

    if website_name == '###.nl Admin':
        # Find the username form and fill it with the defined username
        print '- Filling the username form with the defined username..'
        browser.fill('username', username)

        # Find the password form and fill it with the defined password
        print '- Filling the password form with the defined password..'
        browser.fill('password', password)

        # Find the submit button and click
        print '- Clicking the submit button..'
        browser.click_link_by_text('Inloggen')

        # Find, click and display page with order history
        print '- Visiting the defined web page..'
        current_token = browser.url[57:97]
        url_plus_token = 'http://www.###.nl/admin/index.php?route=sale/order' + current_token
        browser.visit(url_plus_token)

    else:
        website_name == 'Mijn ING Zakelijk'
        # Find the username form and fill it with the defined username
        print '- Filling the username form with the defined username..'
        browser.find_by_id('gebruikersnaam').first.find_by_tag('input').fill(username)

        # Find the password form and fill it with the defined password
        print '- Filling the password form with the defined password..'
        browser.find_by_id('wachtwoord').first.find_by_tag('input').fill(password)

        # Find the submit button and click
        print '- Clicking the submit button..'
        browser.find_by_css('.submit').first.click()

        # Display page with transaction history
        print '- Visiting the defined web page..'
        browser.visit('https://mijnzakelijk.ing.nl/mpz/solstartpaginarekeninginfo.do')

    # Get page title after successful login
    current_title = browser.title

    # Check the title of the page to confirm successful login
    checkLogin(defined_title, current_title, website_name, browser)

def checkLogin(defined_title, current_title, website_name, browser):
    if current_title == defined_title:
        print '# Login to', website_name, 'successful.'
        print '- Quitting the browser..'
        browser.quit()

    else:
        print '# Login to', website_name, 'failed.'
        print '- Quitting the browser..'
        browser.quit()

i = 1
while i < 10:
    print i
    #***()
    mijning()
    i = i+1

关于导致此错误的原因的任何想法以及如何解决？

感谢。

Answer 1

当前版本的ghostdriver源代码修复了这个问题（不再有“Click succeeded but Load Failed”消息“ - 请参阅here）。问题是，该版本尚未发布（如（2013年8月19日），所以你需要得到它然后自己构建它。这解决了我的问题（Windows 7，Python 2.7.5，Selenium 2.33）。你可以找到一步一步{{ 3}}

<强>更新：

PhantomJS 1.9.2刚出来并使用Ghostdriver 1.0.4修复了问题（检查here - 不再“点击成功但加载失败”消息）。所以只需升级到here即可。不需要自己构建任何东西了。

Answer 2

可能是页面上已经存在一些活跃的javascript或后台AJAX，这让PhantomJS认为按钮点击不成功。您可以尝试插入等待或尝试在点击之前停止浏览器。

Answer 3

这是fixed bug，但在某些实际页面中显示。

解决方法：

public static void ClickAndWaitStale( this IWebElement element , DateTime limit = default(DateTime) , TimeSpan sleepBetween = default(TimeSpan) )
{
    if ( limit == default(DateTime) )
        limit = DateTime.Now.AddSeconds( 300 );
    if ( sleepBetween == default(TimeSpan ) )
        sleepBetween = TimeSpan.FromSeconds( 1 );

    try
    {
        element.Click();
    }
    catch ( System.InvalidOperationException ) // Click succeeded but Load Failed
    {
    }

    while ( DateTime.Now < limit )
    {
        try
        {
            element.GetAttribute( "id" );
            Thread.Sleep( sleepBetween );
        }
        catch ( StaleElementReferenceException )
        {
            return;
        }
    }
    throw new TimeoutException( "Timeout waiting for stale object." );
}