Learn about the "browser" framework commonly used in the Java library: WebView, JXBROWSER, Selenium, etc.

In the Java class library, there are some commonly used "browser" frameworks that can be used to achieve webpage display, data extraction or interaction with web pages.This article will introduce several common frameworks, including WebView, JXBROWSER, and Selenium, and provide some Java code examples to help readers better understand and use these frameworks. 1. WebView WebView is a core component in Javafx, which allows embedded web content in Java applications.Through webview, you can display the webpage in an embedded manner and interact with the webpage.Below is a simple example, showing how to use WebView to display a webpage in the Java application: import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.web.WebView; import javafx.stage.Stage; public class WebViewExample extends Application { @Override public void start(Stage primaryStage) { WebView webView = new WebView(); webView.getEngine().load("https://www.example.com"); Scene scene = new Scene(webView, 800, 600); primaryStage.setScene(scene); primaryStage.show(); } public static void main(String[] args) { launch(args); } } The above code creates a simple Javafx application, and a webview component is displayed in the window.Through the method of `Getengine (). Load (), we can specify the URL of the webpage to be displayed.This example will display `https: // www.example.com` in the window. 2. JxBrowser JXBROWSER is a framework that uses the underlying browser engine to display and process Web content in Java applications.It is based on the Chromium engine, supports a variety of operating systems, and provides rich API for web operation and interact with web pages.Below is a simple example, showing how to use JXBROWSER to display a webpage in the Java application: import com.teamdev.jxbrowser.browser.Browser; import com.teamdev.jxbrowser.engine.Engine; import com.teamdev.jxbrowser.engine.EngineOptions; import com.teamdev.jxbrowser.view.swing.BrowserView; import javax.swing.*; import java.awt.*; public class JxBrowserExample { public static void main(String[] args) { // Create a browser engine EngineOptions options = EngineOptions.newBuilder().licenseKey("your-license-key").build(); Engine engine = Engine.newInstance(options); // Create an instance of a browser Browser browser = engine.newBrowser(); // Create a swing component to display the browser content SwingUtilities.invokeLater(() -> { JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(800, 600); // Add the browser view to the window BrowserView view = BrowserView.newInstance(browser); frame.add(view, BorderLayout.CENTER); // Navigation to the specified url browser.navigation().loadUrl("https://www.example.com"); frame.setVisible(true); }); } } The above code uses JXBROWSER to create a simple Java Swing application and display a browser view in the window.By calling `browser.navigation (). Loadurl ()` method, we can specify the URL of the webpage to be displayed.This example will display `https: // www.example.com` in the window. 3. Selenium Selenium is a framework for automated browser operations. It provides rich APIs and tools to simulate the interaction between users and web pages, as well as extracting web content.Selenium supports a variety of browsers, including Chrome, Firefox, and Edge.Below is a simple example, showing how to use Selenium to automate the browser operation in the Java application: import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; public class SeleniumExample { public static void main(String[] args) { // Set the path of Chrome browser drive System.setProperty("webdriver.chrome.driver", "path/to/chromedriver"); // Create a chrome browser example WebDriver driver = new ChromeDriver(); // Navigation to the specified url driver.get("https://www.example.com"); // Execute some operations, such as clicking the link or extracting the webpage content // Close the browser driver.quit(); } } The above code uses Selenium to create a simple Java application, and navigate to the `https://www.example.com` webpage in the Chrome browser.We can simulate the interaction between users and web pages by performing a series of selenium operations, such as clicking on or extracting the webpage content.Finally, turn off the browser by calling the `Driver.quit () method. This article introduces the "browser" framework commonly used in the Java class library, including WebView, JXBROWSER, and Selenium, and provides corresponding Java code examples.These frameworks can achieve different functions in different scenarios, and readers can choose the appropriate framework according to their needs for use and learning.