java - Web 服务中的 selenium 抛出 java.lang.NoClassDefFoundError 异常

Question

我创建了一个动态Web项目，实现了一个使用selenium的功能，在项目的buidlpath中添加了selenium-server-standalone-2.32.0.jar，然后使用向导生成了Web服务器和客户端。它弹出一个警告，内容如下:

The service class "test.eko3.TestEko3" does not comply to one or more requirements of the JAX-RPC 1.1 specification, and may not deploy or function correctly.
The value type "org.openqa.selenium.WebDriver" used via the service class "test.eko3.TestEko3" does not have a public default constructor. Chapter 5.4 of the JAX-RPC 1.1 specification requires a value type to have a public default constructor, otherwise a JAX-RPC 1.1 compliant Web service engine may be unable to construct an instance of the value type during deserialization.
The field or property "windowHandles" on the value type "org.openqa.selenium.WebDriver" used via the service class "test.eko3.TestEko3" has a data type, "java.util.Set", that is not supported by the JAX-RPC 1.1 specification. Instances of the type may not serialize or deserialize correctly. Loss of data or complete failure of the Web service may result.

我单击“确定”，它继续生成服务器和客户端。当它完成并且我尝试从客户端测试它时，它在结果 View 中显示了此异常:

Exception: java.lang.NoClassDefFoundError: org/openqa/selenium/WebDriver; nested exception is: java.lang.NoClassDefFoundError: org/openqa/selenium/WebDriver Message: java.lang.NoClassDefFoundError: org/openqa/selenium/WebDriver; nested exception is: java.lang.NoClassDefFoundError: org/openqa/selenium/WebDriver

然后我将相同的 jar 文件添加到 WEB-INF/lib 文件夹中并再次运行它，但它显示了相同的异常。我还需要在其他地方添加 jar 吗？任何帮助将不胜感激。

服务器的代码如下:

package test.eko3;

import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.ExpectedCondition;
import org.openqa.selenium.support.ui.Wait;
import org.openqa.selenium.support.ui.WebDriverWait;

public class TestEko3 {
public String Ekobilet(String from, String to, String date) {

    //Firefox browser instantiation
    WebDriver driver = new FirefoxDriver();

    //Loading the URL
    driver.get("http://www.amadeusepower.com/trek/portals/trek/default.aspx?Culture=en-US");


    WebElement radioOneway = driver.findElement(By.id("ctl00_ctl00_ctl00_cph1_cph1_QuickSearchAll1_QuickFlightSearchControl1_rbFlightType_1"));
    radioOneway.click();

    waitForPageLoaded(driver);


    WebElement fromText = driver.findElement(By.id("ctl00_ctl00_ctl00_cph1_cph1_QuickSearchAll1_QuickFlightSearchControl1_txtSearch_txtFrom"));
    fromText.clear();
    fromText.sendKeys(from); 


    WebElement toText = driver.findElement(By.id("ctl00_ctl00_ctl00_cph1_cph1_QuickSearchAll1_QuickFlightSearchControl1_txtSearch_txtTo"));
    toText.sendKeys(to); 


    WebElement dateText = driver.findElement(By.id("ctl00_ctl00_ctl00_cph1_cph1_QuickSearchAll1_QuickFlightSearchControl1_txtDepartureDate_txtDate"));
    dateText.sendKeys(date); 

    //Sign in button identification and click it
    WebElement searchbutton = driver.findElement(By.id("ctl00_ctl00_ctl00_cph1_cph1_QuickSearchAll1_QuickFlightSearchControl1_btnSearch"));
    searchbutton.click();

    String page = driver.getPageSource();


    //Closing the browser
    driver.close();

    return page;

    }

    public static void waitForPageLoaded(WebDriver driver) {

        ExpectedCondition<Boolean> expectation = new
    ExpectedCondition<Boolean>() {
           public Boolean apply(WebDriver driver) {
             return ((JavascriptExecutor)driver).executeScript("return document.readyState").equals("complete");
           }
         };

        Wait<WebDriver> wait = new WebDriverWait(driver,30);
         try {
                 wait.until(expectation);
         } catch(Throwable error) {
                 System.out.println("exception yavrum");
         }
    } 

}

Answer 1

也许您正在使用selenium独立jar，这对于java中的动态Web项目不利。请参阅http://me-ol-blog.blogspot.co.il/2013/07/using-selenium-in-java-dynamic-web.html