webdriver是类还是接口？

Question

从Selenium文档来看，WebDriver是一个接口，但在Eclipse中是包org。openqa。selenium在项目浏览器中显示为一个类。此外，如果WebDriver是一个接口，则实现它的类（如ChromeDriver或InternetExplorerDriver）应该定义等方法。get（）或。getCurrentUrl（）。我们在哪里可以看到这些方法的方法定义？

Answer 1

WebDriver是一个公共接口，我们只是定义了一个类型为接口的引用变量（驱动程序）。现在我们分配给它的任何对象都必须是实现接口的类（fire FoxDriver）的实例。

Answer 2

WebDriver是一个公共接口，我不认为ChromeDriver或任何其他驱动程序实现WebDriver，而是扩展了RemoteWebDriver这一类。

编辑

正如我所说，驱动程序扩展了RemoteWebDriver，这就是这些方法的实际实现。。

public void get(String url) {
   execute(DriverCommand.GET, ImmutableMap.of("url", url));
}

Java源代码：

public interface WebDriver extends SearchContext {
  // Navigation

  /**
   * Load a new web page in the current browser window. This is done using an HTTP GET operation,
   * and the method will block until the load is complete. This will follow redirects issued either
   * by the server or as a meta-redirect from within the returned HTML. Should a meta-redirect
   * "rest" for any duration of time, it is best to wait until this timeout is over, since should
   * the underlying page change whilst your test is executing the results of future calls against
   * this interface will be against the freshly loaded page. Synonym for
   * {@link org.openqa.selenium.WebDriver.Navigation#to(String)}.
   *
   * @param url The URL to load. It is best to use a fully qualified URL
   */