使用java反射api调用selenium web驱动程序方法“Find Element”时的代码问题

Question

WebDriver driver = new FirefoxDriver();
Method[] methods = driver.getClass().getMethods();
for(Method method:methods){
    System.out.println(method.getName());
}
driver.manage().window().maximize();
driver.get("http://www.facebook.com/");
By by = By.name("email");
WebElement element = driver.findElement(by);
WebDriver driver = new FirefoxDriver();
Method[] methods = driver.getClass().getMethods();
for(Method method:methods){
    System.out.println(method.getName());
}
driver.manage().window().maximize();
driver.get("http://www.facebook.com/");
By by = By.name("email");
Class c = Class.forName(driver.getClass().getName());
Method getMethod = c.getMethod("findElement", new Class[]{by.getClass()});
getMethod.setAccessible(true);
WebElement element = (WebElement) getMethod.invoke(driver, by);
                




Answer 1

确实没有findelement(by$name)(by.name是抽象by)的子级）。因此，您必须调用：

Method getMethod = c.getMethod("findElement", new Class[] { by.getClass().getSuperclass() });

或

Method getMethod = c.getMethod("findElement", new Class[] { By.class });

此外，代码中方法的调用是错误的，您需要将其更改为

WebElement element = (WebElement)getMethod.invoke(driver, by);