JxBrowser允许通过URL，本地HTML文件和String加载HTML。通常，诸如HTML文件之类的Java应用程序资源位于包含在应用程序类路径中的JAR存档中。为了能够加载位于JAR存档内的资源，您必须使用以下实现注册自定义ProtocolHandler： ``` BrowserContext browserContext = browser.getContext(); ProtocolService protocolService = browserContext.getProtocolService(); protocolService.setProtocolHandler("jar", new ProtocolHandler() { @Override public URLResponse onRequest(URLRequest request) { try { URLResponse response = new URLResponse(); URL path = new URL(request.getURL()); InputStream inputStream = path.openStream(); DataInputStream stream = new DataInputStream(inputStream); byte[] data = new byte[stream.available()]; stream.readFully(data); response.setData(data); String mimeType = getMimeType(path.toString()); response.getHeaders().setHeader("Content-Type", mimeType); return response; } catch (Exception ignored) {} return null; } }); ``` 所述getMimeType（）方法返回给定的资源扩展适当mime类型： ``` private static String getMimeType(String path) { if (path.endsWith(".html")) { return "text/html"; } if (path.endsWith(".css")) { return "text/css"; } if (path.endsWith(".js")) { return "text/javascript"; } return "text/html"; } ``` 您可以使用其他扩展和mime类型扩展此方法。 注册ProtocolHandler并定义支持的mime类型后，可以使用标准Java和JxBrowser API从JAR存档加载资源。例如： ``` browser.loadURL(getClass().getResource("index.html").toString()); ``` 您可以在下面找到完整示例： ``` import com.teamdev.jxbrowser.chromium.*; import com.teamdev.jxbrowser.chromium.swing.BrowserView; import javax.swing.*; import java.awt.*; import java.io.DataInputStream; import java.io.InputStream; import java.net.URL; public class ProtocolHandlerSample { public static void main(String[] args) { final Browser browser = new Browser(); BrowserView view = new BrowserView(browser); JFrame frame = new JFrame(); frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); frame.add(view, BorderLayout.CENTER); frame.setSize(700, 500); frame.setLocationRelativeTo(null); frame.setVisible(true); BrowserContext browserContext = browser.getContext(); ProtocolService protocolService = browserContext.getProtocolService(); protocolService.setProtocolHandler("jar", new ProtocolHandler() { @Override public URLResponse onRequest(URLRequest request) { try { URLResponse response = new URLResponse(); URL path = new URL(request.getURL()); InputStream inputStream = path.openStream(); DataInputStream stream = new DataInputStream(inputStream); byte[] data = new byte[stream.available()]; stream.readFully(data); response.setData(data); String mimeType = getMimeType(path.toString()); response.getHeaders().setHeader("Content-Type", mimeType); return response; } catch (Exception ignored) {} return null; } }); // Assume that we need to load a resource related to this class in the JAR file browser.loadURL(ProtocolHandlerSample.class.getResource("index.html").toString()); } private static String getMimeType(String path) { if (path.endsWith(".html")) { return "text/html"; } if (path.endsWith(".css")) { return "text/css"; } if (path.endsWith(".js")) { return "text/javascript"; } return "text/html"; } } ```