Selenium问题总结

时间 2019-11-19

标签 selenium 问题总结繁體版

原文原文链接

1.Exception in thread "main" org.openqa.selenium.WebDriverException: Cannot find firefox binary in PATH. Make sure firefox is installed. OS appears to be: XP。html

咱们只要在WebDriver driver = new FirefoxDriver(); 前面指定咱们浏览器的具体信息便可：java

System.setProperty ( "webdriver.firefox.bin" , "E:/Program Files/Mozilla Firefox/firefox.exe" );git

WebDriver driver = new FirefoxDriver();github

2. java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.gecko.driver system property; for more information, seehttps://github.com/mozilla/geckodriver.
web

缘由是使用了最新的selenium webdriver版本Selenium 3.x，此版本不支持直接启动firefox，必需要先设置SystemProperty
chrome

下载最新版本的geckoDriver https://github.com/mozilla/geckodriver/releasesapache

System.setProperty("webdriver.gecko.driver", "E:/AndroidWorkspace/SeleniumTest/geckodriver-v0.19.1-win64/geckodriver.exe");api

3.Exception in thread "main" java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.chrome.driver system property; for more information, seehttp://code.google.com/p/selenium/wiki/ChromeDriver. The latest version can be downloaded fromhttp://code.google.com/p/chromedriver/downloads/list
at com.google.common.base.Preconditions.checkState(Preconditions.java:176)
at org.openqa.selenium.remote.service.DriverService.findExecutable(DriverService.java:105)
at org.openqa.selenium.chrome.ChromeDriverService.createDefaultService(ChromeDriverService.java:75)
at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:107)
at com.example.tests.Selenium2ForChrome.main(Selenium2ForChrome.java:18)
浏览器

出现这个错误的缘由是由于谷歌浏览器和selenium不是原生的，须要在谷哥里面装插件，插件下载地址是http://code.google.com/p/chromedriver/downloads/list。安全

4.WebDriver driver = new FirefoxDriver();时总是编译出错：FirefoxDriver cannot be resolved to a type。

试过不少方法都不行，最后把eclipse版本更新后就正常了。

相似的不少问题可能都跟编译器有关系，因此尽可能保持用最新的编译器。

5.The path to the driver executable must be set by the webdriver.ie.driver system property; for more information, see http://code.google.com/p/selenium/wiki/InternetExplorerDriver. The latest version can be downloaded from http://code.google.com/p/selenium/downloads/list

该问题的错误缘由和上面的同样，用IEdriver的时候也须要装插件，去http://code.google.com/p/selenium/downloads/list 下载对应的插件版本，而后修改代码以下：

File file = new File("C:/Selenium/iexploredriver.exe");
System.setProperty("webdriver.ie.driver", file.getAbsolutePath());
WebDriver driver = new InternetExplorerDriver();

6.Exception in thread "main" org.openqa.selenium.remote.SessionNotFoundException: Unexpected error launching Internet Explorer. Browser zoom level was set to 119%. It should be set to 100% (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 5.98 seconds

错误缘由：IE浏览器的比例调大了，按ctrl+0，能够恢复原来的大小，便可。PS：这种错误真是。。。让人无语。

7.My97DatePicker控件输入日期问题

以前用的是seleniumIDE本身录制的代码，结果回放的时候老是说元素找不到，整的我很头疼，后来发现一个简单的办法，就是直接把值输入日期控件的输入框当中来，

driver.findElement(By.id("bookDay")).clear();
driver.findElement(By.id("bookDay")).sendKeys("2013-06-17");

不过我以为这个方法很差，还在寻找其余办法。在网上找了下，有下面这个方法

selenium.selectFrame("relative=up");
//点击日期文本框
selenium.click("days");
//必须增长Thread.sleep()，不增长会报错，提示找不到下一条命令中的元素
//另，尝试使用waitForPageToLoad代替，会超时出错；
Thread.sleep(5000);
//当前为4月，向前移两个月
selenium.click("//div[@id='dpTitle']/div[2]");
selenium.click("//div[@id='dpTitle']/div[2]");
//点击2009-02-02
selenium.click("//td[@onclick='day_Click(2009,2,2);']");

8.baiduInputText.sendKeys("sdfs");总是编译出错：The method sendKeys(CharSequence[]) in the type WebElement is not applicable for the arguments (String)。

写成这样就能够了：baiduInputText.sendKeys(new String[] {"sdfs"});

9.Driver info: driver.version: FirefoxDriver
   at org.openqa.selenium.firefox.FirefoxBinary.<init>(FirefoxBinary.java:116)
   at java.util.Optional.orElseGet(Unknown Source)
   at org.openqa.selenium.firefox.FirefoxOptions.getBinary(FirefoxOptions.java:218)
   at org.openqa.selenium.firefox.FirefoxDriver.toExecutor(FirefoxDriver.java:155)
   at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:120)
   at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:98)
   at com.hejing.selenium.Selenium2.main(Selenium2.java:24)

报这个错误一样是由于firefox的安装路径与默认安装路径不一致所致，不一致状况都须要单独进行设置firefox的安装路径：System.setProperty("webdriver.firefox.bin", "D:/software/Mozilla Firefox/firefox.exe");

10.Exception in thread "main" java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.ie.driver system property; for more information, see https://github.com/SeleniumHQ/selenium/wiki/InternetExplorerDriver. The latest version can be downloaded from http://selenium-release.storage.googleapis.com/index.html
at com.google.common.base.Preconditions.checkState(Preconditions.java:754)

意思是咱们缺乏了设置ie浏览器的驱动，下载ie的驱动而后再配置到工程中便可。

System.setProperty("webdriver.ie.driver", "E:/Java workspace/SeleniumTest/IEDriverServer_x64_3.8.0/IEDriverServer.exe");

11.Exception in thread "main" org.openqa.selenium.SessionNotCreatedException: Unexpected error launching Internet Explorer. Protected Mode settings are not the same for all zones. Enable Protected Mode must be set to the same value (enabled or disabled) for

不能建立session会话异常，在启动ie浏览器的时候错误：全部区域的保护模式设置不一致。

而后就去查阅了文档：https://github.com/SeleniumHQ/selenium/wiki/InternetExplorerDriver

说的是：在Windows Vista或Windows 7上的IE 7或更高版本上，必须将每一个区域的保护模式设置设置为相同的值。值能够打开或关闭，只要每一个区域相同。要设置保护模式设置，请从工具菜单中选择“Internet选项...”，而后单击安全选项卡。对于每一个区域，在标签为“启用保护模式”的标签底部将出现一个复选框。
另外，对于IE 10及更高版本，必须禁用“加强保护模式”。此选项位于“Internet选项”对话框的“高级”选项卡中。

按照说明操做果真能正常运行了。

12.Exception in thread "main" org.openqa.selenium.remote.UnreachableBrowserException: Could not start a new session. Possible causes are invalid address of the remote server or browser start-up failure.

Caused by: org.apache.http.conn.HttpHostConnectException: Connect to 127.0.0.1:4444 [/127.0.0.1] failed: Connection refused: connect
Caused by: java.net.ConnectException: Connection refused: connect

异常缘由是没有启动远程服务器，客户端与服务端无法创建链接。

运行远程服务器：java -jar E:\selenium-server-standalone-3.8.1.jar