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2025-02-25 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
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This article mainly explains "what is the collection and development method of JavaFX WebView". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what is the collection and development method of JavaFX WebView"?
Background
Recently want to do a desktop version of the client, can load connections, access to source code, etc., mainly used for quick access to the website column, then with the crawler under the column of the latest information.
Adopt technology
Java 1.8
Introduction of related plug-ins
JavaFX is:
A software platform for creating and delivering desktop applications, as well as rich Internet applications (RIA) that can run on a variety of devices.
A set of graphics and media packs that enable developers to design, create, test, debug, and deploy rich client applications that run consistently on different platforms.
WebView:
Using the Web component of WebKit HTML technology, you can embed Web pages in JavaFX applications. A JavaScript running in WebView can call Java API,Java API or a JavaScript running in WebView.
JavaFX adds support for other HTML5 features, including Web sockets, Web Worker and Web fonts, and printing.
JavaFX WebView:
JavaFX WebView is a mini-browser (also known as an embedded browser) that provides Web viewer and full browsing capabilities through API in JavaFX applications.
This browser is based on WebKit, an open source Web browser engine that supports HTML5,JavaScript,CSS,DOM rendering and SVG graphics.
The WebView class is an extension of the Node class.
The embedded browser inherits all the fields and methods from the Node class, so it has all its functions.
It encapsulates WebEngine objects, merges HTML content into the application's scenario, and provides properties and methods for applying effects and transformations.
The getEngine () method called on the WebView object returns the Web engine associated with it.
The classes that make up the embedded browser are in the javafx.scene.web package.
WebView enables developers to implement the following functions in their Java applications:
◦ renders HTML content from local or remote URL
◦ supports history and provides backward and forward navigation
◦ reloads content
◦ applies the effect to the Web component
◦ Editing HTML content
◦ executes the JavaScript command
◦ executes the uplink call from JavaScript to JavaFX
◦ handles events
In addition to supporting CSS3 and ecmascript6 (ES6), the WebView component also supports the following HTML5 features:
◦ DOM3
◦ canvas
◦ media playback
◦ form controls (except)
◦ editable content
◦ history maintenance
◦ support, and tags
◦ SVG
◦ Web socket
◦ Web Worker
◦ supports domain names written in the native language
Web engine:
1. Is a non-visual object that can manage one web page at a time
two。 Provides basic web page functions through its API.
3. It supports user interactions, such as navigating links and submitting HTML forms, but it does not interact directly with the user.
4. It loads a web page, creates a document model, applies styles as needed, and runs JavaScript on the page.
5. It provides access to the document model of the current page and allows two-way communication between the Java application and the JavaScript code of the page.
6. It wraps a WebPage object that provides interaction with the native Webkit core.
Main code introduction:
Main interface construction:
Package org.lc.v1
Import org.lc.v1.component.WebBrowerPane
Import org.lc.v1.handle.AlertEventHandler
Import org.lc.v1.handle.PopupCallback
Import org.lc.v1.html.HtmlChangeListener
Import org.lc.v1.html.WebHistoryVisitListener
Import javafx.application.Application
Import javafx.scene.Scene
Import javafx.scene.control.Tab
Import javafx.scene.web.WebEngine
Import javafx.scene.web.WebHistory
Import javafx.scene.web.WebView
Import javafx.stage.Stage
Public class LCWebBrower extends Application {public void start (Stage stage) throws Exception {final WebBrowerPane tp = new WebBrowerPane (stage)
Stage.setScene (new Scene (tp, 950,600))
Final WebView webView = new WebView ()
WebView.prefWidthProperty () .bind (stage.getScene () .widthProperty ())
WebView.prefHeightProperty () .bind (stage.getScene () .heightProperty ())
Final WebEngine webEngine = webView.getEngine ()
Final WebHistory history = webEngine.getHistory ()
History.getEntries () .addListener (new WebHistoryVisitListener ()
WebEngine.getLoadWorker (). StateProperty (). AddListener (new HtmlChangeListener (webEngine))
WebEngine.setOnAlert (new AlertEventHandler (tp))
WebEngine.setCreatePopupHandler (new PopupCallback (tp))
WebEngine.setJavaScriptEnabled (true)
WebEngine.executeScript ("location.reload (true);")
WebEngine.load ("loaded address")
Final Tab tab = new Tab ()
Tab.textProperty () .bind (webEngine.titleProperty ()
Tab.setClosable (false)
Tab.setContent (webView)
Tp.addTabPage (tab)
Stage.show ()
} public static void main (String [] args) {
Launch (args)
}
}
Monitoring does not load the status, get the source code, all connections, and so on.
Package org.lc.v1.html
Import org.w3c.dom.NamedNodeMap
Import org.w3c.dom.Node
Import org.w3c.dom.NodeList
Import javafx.beans.value.ChangeListener
Import javafx.beans.value.ObservableValue
Import javafx.concurrent.Worker.State
Import javafx.scene.web.WebEngine
Public class HtmlChangeListener implements ChangeListener {
Private WebEngine webEngine
String html
Public HtmlChangeListener (WebEngine webEngine) {
This.webEngine = webEngine
}
Public void changed (ObservableValue
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