Question

我试图点击循环内的分页。

这是我的代码：

WebElement pagination = d.findElement(By.xpath("/html/body/div[9]/div[1]/div[3]/div/div/div[2]/ul"));
List < WebElement > allPaginations = pagination.findElements(By.tagName("a"));
WebElement title = d.findElement(By.linkText(">"));
System.out.println(allPaginations.size());
if (allPaginations.size() > 0)
{
    System.out.println("Pagination exists");
    for (int i = 0; i < allPaginations.size(); i++)
    {
        allPaginations = pagination.findElements(By.tagName("a"));
        Thread.sleep(3000);
        allPaginations.get(i).click();
        d.manage().timeouts().pageLoadTimeout(5, TimeUnit.SECONDS);
        List < WebElement > ngo_Names = d.findElements(By.xpath("/html/body/div[9]/div[1]/div[3]/div/div/div[2]/table/tbody/tr/td[2]"));
        System.out.println(ngo_Names.size());
        //System.out.println(i);
    }
}
else
{
    System.out.println("Pagination doesn't exists");
}

但是在尝试第二次点击时，我遇到了一些我无法修复的例外情况。有关如何解决这个问题的任何建议。提前致谢

修改：1

以下是我得到的异常：

Exception in thread "main" org.openqa.selenium.StaleElementReferenceException: The element reference of <ul class="pagination"> stale; either the element is no longer attached to the DOM, it is not in the current frame context, or the document has been refreshed
For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html
Build info: version: '3.5.2', revision: '10229a9020', time: '2017-08-21T17:54:21.164Z'
System info: host: 'SAURABH', ip: '192.168.0.205', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_151'
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities [{moz:profile=C:\Users\Saurabh\AppData\Local\Temp\rust_mozprofile.m5FGXXXy6WIb, rotatable=false, timeouts={implicit=0, pageLoad=300000, script=30000}, pageLoadStrategy=normal, moz:headless=false, platform=ANY, moz:accessibilityChecks=false, acceptInsecureCerts=false, browserVersion=57.0.4, platformVersion=10.0, moz:processID=4752, browserName=firefox, javascriptEnabled=true, platformName=windows_nt, moz:webdriverClick=false}]
Session ID: d3be2955-cc46-4884-aff2-b54ca73ccc37
*** Element info: {Using=tag name, value=a}
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:185)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:120)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:49)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:164)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:641)
at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:275)
at org.openqa.selenium.remote.RemoteWebElement.findElements(RemoteWebElement.java:194)
at org.openqa.selenium.remote.RemoteWebElement.findElementsByTagName(RemoteWebElement.java:271)
at org.openqa.selenium.By$ByTagName.findElements(By.java:327)
at org.openqa.selenium.remote.RemoteWebElement.findElements(RemoteWebElement.java:170)
at ngpdarpan.Pagination.DataPull(Pagination.java:74)
at ngpdarpan.Pagination.main(Pagination.java:35)

Answer 1

错误显示pagination不再存在于DOM中。解决方案非常简单，您只需要在循环中再次找到它。

WebElement pagination = d.findElement(By.xpath("/html/body/div[9]/div[1]/div[3]/div/div/div[2]/ul"));
List < WebElement > allPaginations = pagination.findElements(By.tagName("a"));
WebElement title = d.findElement(By.linkText(">"));
System.out.println(allPaginations.size());
if (allPaginations.size() > 0)
{
    System.out.println("Pagination exists");
    for (int i = 0; i < allPaginations.size(); i++)
    {
        pagination = d.findElement(By.xpath("/html/body/div[9]/div[1]/div[3]/div/div/div[2]/ul"));
        allPaginations = pagination.findElements(By.tagName("a"));
        Thread.sleep(3000);
        allPaginations.get(i).click();
        d.manage().timeouts().pageLoadTimeout(5, TimeUnit.SECONDS);
        List < WebElement > ngo_Names = d.findElements(By.xpath("/html/body/div[9]/div[1]/div[3]/div/div/div[2]/table/tbody/tr/td[2]"));
        System.out.println(ngo_Names.size());
        //System.out.println(i);
    }
}
else
{
    System.out.println("Pagination doesn't exists");
}

无法在循环中解决“陈旧元素引用异常”

1 个答案: