selenium第一个小程序遇到的问题

package selenium_autoTest;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;

public class TestHelloWorld {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
          //代码如下，主要是打开百度，然后在搜索框输入glen，点击搜索按钮，关闭浏览器。
        //如果火狐浏览器没有默认安装在C盘，需要制定其路径
        System.setProperty("webdriver.firefox.bin", "E:/Program Files/Mozilla Firefox/firefox.exe");
        WebDriver driver = new FirefoxDriver();
        driver.get("http://www.baidu.com/");
        
        driver.manage().window().maximize();
         
         WebElement txtbox = driver.findElement(By.name("wd"));
         txtbox.sendKeys("selenium");
        
         WebElement btn = driver.findElement(By.id("su"));
         btn.click();
         
        driver.close();

    }
    

}

如果火狐浏览器没有按照默认安装到C盘，需要制定其路径

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

本人是装在.bin", "E:/Program Files/Mozilla Firefox/firefox.exe下面

否则会报异常

：

Exception in thread "main" org.openqa.selenium.WebDriverException: Cannot find firefox binary in PATH. Make sure firefox is installed. OS appears to be: XP
Build info: version: '2.18.0', revision: '15704', time: '2012-01-27 17:37:17'
System info: os.name: 'Windows XP', os.arch: 'x86', os.version: '5.1', java.version: '1.6.0_23'

解决方法：方法1、最简单的重新安装firefox到默认路径。哈哈

             方法2、直接用System.setPropert方法设置webdriver.firefox.bin的值，如
Java代码

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

             方法3、 用FirefoxBinary类和public FirefoxDriver(FirefoxBinary binary, FirefoxProfile profile)这个构造方法，直接上代码
Java代码

    File pathToFirefoxBinary = new File("D:\\Program Files\\Mozilla Firefox\\firefox.exe");  
    FirefoxBinary firefoxbin = new FirefoxBinary(pathToFirefoxBinary);  
    WebDriver driver = new FirefoxDriver(firefoxbin,null);//这里使用这个构造方法。  

  应该还可以在环境变量里面设置firefox的路径也可以，有兴趣的可以试一下。

2  如果selenium和Firefox的版本不兼容，运行代码时，会出现下面异常：

org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output:
tem-share
1413076587749    addons.xpi    INFO    Mapping {972ce4c6-7e08-4474-a285-3208198ce6fd} to E:\Program Files\Mozilla Firefox\browser\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}
1413076587750    addons.xpi    INFO    Mapping [e-mail] to C:\Users\zhangmin\AppData\Local\Temp\anonymous3316082759202275717webdriver-profile\extensions\[e-mail]
1413076587750    addons.xpi    DEBUG    Ignoring file entry whose name is not a valid add-on ID: C:\Users\zhangmin\AppData\Local\Temp\anonymous3316082759202275717webdriver-profile\extensions\webdriver-staging
1413076587750    addons.xpi    DEBUG    checkForChanges
1413076587757    addons.xpi    DEBUG    Directory state JSON differs: cache [] state [{"name":"app-global","addons":{"{972ce4c6-7e08-4474-a285-3208198ce6fd}":{"descriptor":"E:\\Program Files\\Mozilla Firefox\\browser\\extensions\\{972ce4c6-7e08-4474-a285-3208198ce6fd}","mtime":1412224254982,"rdfTime":1411526203000}}},{"name":"app-profile","addons":{"[e-mail]":{"descriptor":"C:\\Users\\zhangmin\\AppData\\Local\\Temp\\anonymous3316082759202275717webdriver-profile\\extensions\\[e-mail]","mtime":1413076587152,"rdfTime":1413076586824}}}]
1413076587763    addons.xpi-utils    DEBUG    Opening XPI database C:\Users\zhangmin\AppData\Local\Temp\anonymous3316082759202275717webdriver-profile\extensions.json
1413076587766    addons.xpi    DEBUG    New add-on [e-mail] installed in app-profile
*** Blocklist::_loadBlocklistFromFile: blocklist is disabled
1413076588018    addons.xpi-utils    DEBUG    Make addon app-profile:[e-mail] visible
1413076588020    DeferredSave.extensions.json    DEBUG    Save changes
1413076588021    DeferredSave.extensions.json    DEBUG    Save changes
1413076588022    addons.xpi    DEBUG    New add-on {972ce4c6-7e08-4474-a285-3208198ce6fd} installed in app-global
1413076588025    addons.xpi-utils    DEBUG    Make addon app-global:{972ce4c6-7e08-4474-a285-3208198ce6fd} visible
1413076588025    DeferredSave.extensions.json    DEBUG    Save changes
1413076588025    DeferredSave.extensions.json    DEBUG    Save changes
1413076588033    addons.xpi    DEBUG    Updating database with changes to installed add-ons
1413076588033    addons.xpi-utils    DEBUG    Updating add-on states
1413076588034    addons.xpi-utils    DEBUG    Writing add-ons list
1413076589104    DeferredSave.extensions.json    DEBUG    Starting timer
1413076589138    addons.manager    DEBUG    shutdown
1413076589194    DeferredSave.extensions.json    DEBUG    Starting write
1413076589195    addons.xpi    DEBUG    shutdown
1413076589195    addons.xpi-utils    DEBUG    shutdown
1413076589263    DeferredSave.extensions.json    DEBUG    Write succeeded
1413076589263    addons.xpi-utils    DEBUG    XPI Database saved, setting schema version preference to 16
1413076589264    addons.xpi    DEBUG    Notifying XPI shutdown observers
1413076589266    addons.manager    DEBUG    Async provider shutdown done
1413076590479    addons.manager    DEBUG    Loaded provider scope for resource://gre/modules/addons/XPIProvider.jsm: ["XPIProvider"]
1413076590481    addons.manager    DEBUG    Loaded provider scope for resource://gre/modules/LightweightThemeManager.jsm: ["LightweightThemeManager"]
1413076590483    addons.xpi    DEBUG    startup
1413076590483    addons.xpi    DEBUG    Skipping unavailable install location app-system-local
1413076590483    addons.xpi    DEBUG    Skipping unavailable install location app-system-share
1413076590484    addons.xpi    INFO    Mapping {972ce4c6-7e08-4474-a285-3208198ce6fd} to E:\Program Files\Mozilla Firefox\browser\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}
1413076590485    addons.xpi    INFO    Mapping [e-mail] to C:\Users\zhangmin\AppData\Local\Temp\anonymous3316082759202275717webdriver-profile\extensions\[e-mail]
1413076590485    addons.xpi    DEBUG    Ignoring file entry whose name is not a valid add-on ID: C:\Users\zhangmin\AppData\Local\Temp\anonymous3316082759202275717webdriver-profile\extensions\webdriver-staging
1413076590485    addons.xpi    DEBUG    checkForChanges
1413076590493    addons.xpi    DEBUG    No changes found
*** Blocklist::_preloadBlocklistFile: blocklist is disabled
JavaScript error: chrome://browser/content/urlbarBindings.xml, line 677: aUrl is undefined

    at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.start(NewProfileExtensionConnection.java:106)
    at org.openqa.selenium.firefox.FirefoxDriver.startClient(FirefoxDriver.java:244)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:110)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:190)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:183)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:179)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:92)
    at autoTest_selenium.TestHelloWorld.main(TestHelloWorld.java:13)

解决方案：

selenium版本过低，可以升级selenium，

window8装的Firefox是32版本，对应的selenium版本是2.43

其他：

Selenium  ->FireFox

2.25.0   ->  18

2.30.0   ->19

2.31.0   ->20

升级selenium jar包

正常启动firefox