java-与Mozilla的GeckoDriver一起使用Selenium时,找不到CircularOutputStream类异常

使用Java Selenium Firefox geckodriver时出现问题.这是问题所在：

*操作系统：Windows 7

*硒版本：Selenium 3.0.0 beta4

* Java：8

* Geckodriver：v0.10.0

Error msg:
Exception in thread “main” java.lang.NoClassDefFoundError: org/openqa/selenium/remote/internal/CircularOutputStream
at org.openqa.selenium.firefox.FirefoxBinary.(FirefoxBinary.java:56)
at org.openqa.selenium.firefox.FirefoxBinary.(FirefoxBinary.java:52)
at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:92)
at tools.Cadencie.LoginCad(Cadencie.java:24)
at tools.Cadencie.main(Cadencie.java:73)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: java.lang.classNotFoundException: org.openqa.selenium.remote.internal.CircularOutputStream
at java.net.@R_502[email protected](@R_502[email protected]:381)
at java.lang.classLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.classLoader.loadClass(ClassLoader.java:357)
… 10 more

码：

public class Cadencie {

static WebDriver driver;

public void LoginCad(){

    //System.setProperty("webdriver.firefox.bin", "C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe");

    System.setProperty("webdriver.gecko.driver", "C:\\Program Files (x86)\\Mozilla Firefox\\geckodriver.exe");

    driver = new FirefoxDriver();

    driver.get("http://172.16.1.133:8090/CADENCIE/servlet/app");

    try {

        Thread.sleep(1000);

    } catch(InterruptedException e){

        e.printstacktrace();

    }

    Utilities.switchToWindow("Cadencie - User logon [logoN]", driver);

    try{

        Thread.sleep(2000);

    } catch(InterruptedException e){

        e.printstacktrace();

    }

    driver.findElement(By.id("idBANK")).clear();
    driver.findElement(By.id("idBANK")).sendKeys("48");

    driver.findElement(By.id("idEMPLOYEE")).clear();
    driver.findElement(By.id("idEMPLOYEE")).sendKeys("200003");

    driver.findElement(By.id("idPASSWORD")).clear();
    driver.findElement(By.id("idPASSWORD")).sendKeys("Cadencie1");

    driver.findElement(By.id("maintlogoN")).click();

    driver.findElement(By.id("idPASSWORD")).clear();
    driver.findElement(By.id("idPASSWORD")).sendKeys("Cadencie1");

    driver.findElement(By.id("maint")).click();

}

我认为这可能是版本不一致的问题.因为我还有另一个正在使用maven的自动化项目,所以硒2.52.0 ..但是不确定这是否引起了问题.我这次不使用Maven.只需尝试创建JAVA GUI程序(工具包).

解决方法:

异常是因为类路径中缺少jar文件.

如果您不使用Maven,请检查Compile Dependencies at MVN Repository page,然后将jar手动添加到类路径中.

如果您使用的是Maven,请参阅：java.lang.classnotfoundexception: org.openqa.selenium.io.Circular OutputStream