Selenium中的JavascriptExecutor

开发运维 2023-08-28 贤蛋大眼萌 手机阅读

Selenium是一个众所周知的开源、基于Web的自动化工具，被许多人使用。但是有时候它在与某些元素进行交互时会遇到问题；也许一个意外的弹出窗口会阻碍Web驱动程序执行操作并生成错误的结果。这就是JavascriptExecutor在这种情况下发挥关键作用的地方，它使Web驱动程序能够成功执行所需的操作。它的复杂性和突发性并存，使得处理这种情况变得更加容易。

What is JavascriptExecutor in Selenium?

使用名为JavascriptExecutor的接口，可以通过Selenium执行JavaScript，并在使用这种编程语言时与浏览器中的HTML进行交互，必须使用JavascriptExecutor对象，创建长度和复杂度各异的句子结构对于构成引人入胜的文本至关重要。因此，JavaScript Executor提供了与Web浏览器内的HTML进行通信的手段，同时还使程序员能够使用自己独特的JavaScript编写风格来构建巧妙灵活的表达。

Methods

以下是Selenium中JavascriptExecutor提供的方法：

ExecuteScript

Executing JavaScript in the presently chosen window or frame has never been so easy! By calling an anonymous function, this method enables users to reap the rewards of a multitude of data types, including −

  • Web Elements

  • Lists

  • Strings

  • Long

  • 布尔值

  • ExecuteAsyncScript

Asynchronous JavaScript execution is a multi-threaded approach to execute individual JavaScript tasks in the current window or frame. It allows page parsing to continue, optimizing performance and providing great flexibility. Breaking down the code into easily identifiable components with varying complexity and context is key to achieving this objective. This approach involves creating concise segments in some areas while accommodating lengthier and intricate sections in other parts. With this method, the asynchronous JavaScript is run in an efficient and optimized manner.

学习如何使用JavascriptExecutor

  • 第一步 - 导入包

import org.openqa.selenium.JavascriptExecutor; 登录后复制