在Java上使用Selenium時遇到問題。我試圖按照此頁面上的例子:http://code.google.com/p/selenium/wiki/GettingStarted無法爲Selenium/WebDriver運行Java示例
我打字:
$ javac -cp . -cp ~/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar -cp ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar -g Example.java
並獲得這樣的:
alis-mac-pro:selenium ali$ java ExampleException in thread "main" java.lang.NoClassDefFoundError: Example (wrong name: org/openqa/selenium/example/Example)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
我粘貼代碼的例子爲示例的.java。
UPDATE
上在irc.freenode.net #java有種靈魂告訴我我的鏈條中的條目類路徑。如此,而不是:
$ javac -cp . -cp ~/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar -cp ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar -g Example.java
我用:
javac -cp .:~/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar:~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar -g Example.java
太好了! :-)但是現在新的錯誤:
Example.java:3: cannot find symbol
symbol : class By
location: package org.openqa.selenium
import org.openqa.selenium.By;
^
Example.java:4: cannot find symbol
symbol : class WebDriver
location: package org.openqa.selenium
import org.openqa.selenium.WebDriver;
^
Example.java:5: cannot find symbol
symbol : class WebElement
location: package org.openqa.selenium
import org.openqa.selenium.WebElement;
^
Example.java:6: package org.openqa.selenium.htmlunit does not exist
import org.openqa.selenium.htmlunit.HtmlUnitDriver;
^
Example.java:13: cannot find symbol
symbol : class WebDriver
location: class org.openqa.selenium.example.Example
WebDriver driver = new HtmlUnitDriver();
^
Example.java:13: cannot find symbol
symbol : class HtmlUnitDriver
location: class org.openqa.selenium.example.Example
WebDriver driver = new HtmlUnitDriver();
^
Example.java:19: cannot find symbol
symbol : class WebElement
location: class org.openqa.selenium.example.Example
WebElement element = driver.findElement(By.name("q"));
^
Example.java:19: cannot find symbol
symbol : variable By
location: class org.openqa.selenium.example.Example
WebElement element = driver.findElement(By.name("q"));
^
8 errors
UPDATE
我想:
$ jar tf ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar
但我看到了org.openqa.selenium.By類,例如,使它似乎並不是我缺少任何軟件包。
UPDATE
好吧! :-)我刪除了包說明符。我執行了:
$ javac -classpath ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar Example.java
除了我將完整路徑添加到.jar之外,這是一個評論者給我的。然後我執行:
$ java -cp .:~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar Example
這給了我:
Exception in thread "main" java.lang.NoClassDefFoundError: org/openqa/selenium/WebDriver
Caused by: java.lang.ClassNotFoundException: org.openqa.selenium.WebDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
UPDATE
萬歲!勝利,感謝Mike Kwan。下面是什麼工作:
alis-mac-pro:selenium ali$ javac -cp ".:/Users/ali/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar:/Users/ali/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar:/Users/ali/Downloads/selenium-2.20.0/libs/*" Example.java
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
alis-mac-pro:selenium ali$ java -cp ".:/Users/ali/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar:/Users/ali/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar:/Users/ali/Downloads/selenium-2.20.0/libs/*" Example
Page title is: Cheese! - Google Search
BTW,我添加了「-cp」選項的最後一部分(「庫/ *」),因爲那裏的HtmlUnit是當我下載的硒/ webdriver的東西。
我認爲你的「Example.class」文件位於錯誤的目錄中,它應該位於org.openqa.selenium.example之一。 – mglauche 2012-04-07 18:36:45