http://code.google.com/p/selenium/wiki/Grid2
DesiredCapabilities capability = DesiredCapabilities.firefox();
capability.setBrowserName();
capability.setPlatform();
capability.setVersion()
capability.setCapability(,);
WebDriver driver = new RemoteWebDriver(new URL("http://localhost:4444/wd/hub"), capability);
我需要特定的环境(ff-on-xp, ie7-on-xp, etcs) 来进行上述测试,