无法为Selenium / WebDriver运行Java示例 [英] Can't run Java example for Selenium / WebDriver
问题描述
在Java上使用Selenium时遇到问题。我正在尝试按照此页面上的示例操作： http://code.google.com/p/selenium/ wiki / GettingStarted
Having a problem getting going with Selenium on Java. I'm trying to follow the example on this page: http://code.google.com/p/selenium/wiki/GettingStarted
我正在输入：
$ 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
得到这个：
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)
我将示例中的代码粘贴到Example.java中。
I pasted the code from the example into Example.java.
UPDATE
irc.freenode.net上#java的一个善良的灵魂告诉我连锁我的类路径中的条目。因此，而不是：
A kind soul on #java at irc.freenode.net told me to chain my entries in the classpath. So, instead of:
$ 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
我用过：
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
太棒了！ :-)但是现在出现新错误：
Great! :-) But now new errors:
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
更新
我试过：
$ jar tf ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar
但我看到了组织.openqa.selenium。比如说类，所以看起来我没有丢失任何包。
But I see the org.openqa.selenium.By class, for example, so it doesn't appear that I'm missing any packages.
UPDATE
好的！ :-)我删除了包说明符。我执行了：
Okay! :-) I removed the package specifier. I executed:
$ javac -classpath ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar Example.java
这是评论者给我的内容，除了我添加了.jar的完整路径。然后我执行了：
Which is what a commenter gave me, except I added the full path to the .jar. Then I executed:
$ java -cp .:~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar Example
这给了我：
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
Hurray！胜利，感谢Mike Kwan。以下是有效的：
Hurray! Victory, thanks to Mike Kwan. The following is what worked:
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选项的最后一部分（用于libs / *），因为这是我下载Selenium / WebDriver时HTMLUnit的地方。
BTW, I added the last part of the "-cp" option (for "libs/*"), because that's where HTMLUnit was when I downloaded the Selenium / WebDriver stuff.
推荐答案
编译如下：
javac -classpath selenium-server-standalone-2.20.0.jar Example.java
除非您将Java文件放在 org.openqa.selenium.example 中，否则您将拥有删除包说明符。像这样运行编译后的文件：
Unless you put the Java file in the org.openqa.selenium.example, you will have to remove the package specifier. Run the compiled file like so:
java -cp .:selenium-server-standalone-2.20.0.jar Example
这会将当前目录链接到类路径。
This chains the current directory to the classpath.
这篇关于无法为Selenium / WebDriver运行Java示例的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
