selenium-java有时会使用firefoxdriver运行异常

Question

这是我的java代码。

WebDriver driver = new FirefoxDriver();
for (DBTable table : tables) {
	try {
		Thread.sleep(10000l);
		String content = templeteService.generateTemplate(table);
		content = content.replaceAll("\\r|\\n|\\t", "");
		String title = table.getComment();
		//跳转到内容父页面
		driver.get(topUrl);
		String curUrl = driver.getCurrentUrl();
		//如果重定向到登录页，则登录
		if (curUrl.indexOf("/confluence/login.action") != -1) {
			driver.findElement(By.id("os_username")).sendKeys("kehui");
			driver.findElement(By.id("os_password")).sendKeys("kehui.1225");
			driver.findElement(By.id("loginButton")).click();
		}
		//点击创建按钮
		driver.findElement(By.id("create-page-button")).click();
		//点击生成默认的空白页
		driver.findElement(By.className("create-dialog-create-button")).click();
		Thread.sleep(1000l);
		//wiki标题
		driver.findElement(By.id("content-title")).sendKeys(title);
		//切换到wiki内容页，并填充标题
		driver.switchTo().frame("wysiwygTextarea_ifr");
		WebElement editor = driver.findElement(By.tagName("body"));
		JavascriptExecutor jsExecutor = (JavascriptExecutor) driver;
		jsExecutor.executeScript("document.body.innerHTML = '" + content + "';", editor);
		driver.switchTo().defaultContent();
		//driver.findElement(By.id("notifyWatchers")).click();
		//点击发布按钮
		//driver.findElement(By.id("rte-button-publish")).click();
	} catch (Exception e) {
		logger.error("exception-" + table.getTableName(), e);
	}
}
driver.close();
DBUtil.closeConn();

​

运行异常信息。

​

Caused by: org.openqa.selenium.ElementNotVisibleException: Element is not currently visible and so may not be interacted with
Build info: version: '2.49.1', revision: '808c23b0963853d375cbe54b90bbd052e2528a54', time: '2016-01-21 09:37:52'
System info: host: 'DESKTOP-RHNIR30', ip: '10.7.242.80', os.name: 'Windows 8.1', os.arch: 'amd64', os.version: '6.3', java.version: '1.7.0_67'
Driver info: driver.version: unknown
	at <anonymous class>.fxdriver.preconditions.visible(file:///D:/apache-tomcat-7.0.64/temp/anonymous912190740134287098webdriver-profile/extensions/fxdriver@googlecode.com/components/command-processor.js:10003)
	at <anonymous class>.DelayedCommand.prototype.checkPreconditions_(file:///D:/apache-tomcat-7.0.64/temp/anonymous912190740134287098webdriver-profile/extensions/fxdriver@googlecode.com/components/command-processor.js:12540)
	at <anonymous class>.DelayedCommand.prototype.executeInternal_/h(file:///D:/apache-tomcat-7.0.64/temp/anonymous912190740134287098webdriver-profile/extensions/fxdriver@googlecode.com/components/command-processor.js:12557)
	at <anonymous class>.DelayedCommand.prototype.executeInternal_(file:///D:/apache-tomcat-7.0.64/temp/anonymous912190740134287098webdriver-profile/extensions/fxdriver@googlecode.com/components/command-processor.js:12562)
	at <anonymous class>.DelayedCommand.prototype.execute/<(file:///D:/apache-tomcat-7.0.64/temp/anonymous912190740134287098webdriver-profile/extensions/fxdriver@googlecode.com/components/command-processor.js:12504)
2016-01-25 16:04:37,292 ERROR (com.manyi.iw.test.sth.service.impl.WikiServiceImpl:99) - exception-iw_sale_contract_customer_doc
org.openqa.selenium.ElementNotVisibleException: Element is not currently visible and so may not be interacted with
Command duration or timeout: 16 milliseconds
Build info: version: '2.49.1', revision: '808c23b0963853d375cbe54b90bbd052e2528a54', time: '2016-01-21 09:37:52'
System info: host: 'DESKTOP-RHNIR30', ip: '10.7.242.80', os.name: 'Windows 8.1', os.arch: 'amd64', os.version: '6.3', java.version: '1.7.0_67'
Session ID: 413945ea-a8db-4b69-9f34-3868c540174d
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities [{platform=WINDOWS, acceptSslCerts=true, javascriptEnabled=true, cssSelectorsEnabled=true, databaseEnabled=true, browserName=firefox, handlesAlerts=true, nativeEvents=false, webStorageEnabled=true, rotatable=false, locationContextEnabled=true, applicationCacheEnabled=true, takesScreenshot=true, version=43.0.4}]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:206)
	at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:158)
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:678)
	at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:327)
	at org.openqa.selenium.remote.RemoteWebElement.sendKeys(RemoteWebElement.java:122)
	at com.manyi.iw.test.sth.service.impl.WikiServiceImpl.autoPublishWiki(WikiServiceImpl.java:88)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at com.manyi.iw.test.sth.interceptor.ExceptionInterceptor.invoke(ExceptionInterceptor.java:21)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)

​

异常并不总是发生，有些情况下。

当一个按钮点击一个新的页面，但是正在加载，chrome驱动找不到新的页面文档时，就会发生异常。

如何在没有firefoxdriver异常的情况下运行完成。请帮帮我。

Answer 1

尝试对expected conditions使用显式等待

WebDriverWait wait = new WebDriverWait(driver, 20);
WebElement element = wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("id"));
element.click();

这将等待20秒以使元素可见。在此之后，元素将是可见的，并且您应该不会遇到与其交互的问题。

Answer 2

对于ajax调用(在另一个应答线程中提问)，如果在等待数据时显示加载指示器，则可以等待加载指示器不可见。