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通过LwjglAWTCanvas

package com.acuilab.bc.main.dapp;

import com.badlogic.gdx.backends.lwjgl.LwjglAWTCanvas;
import java.util.concurrent.atomic.AtomicInteger;
import static javax.swing.SwingConstants.CENTER;
import org.openide.util.NbBundle;
import org.openide.windows.TopComponent;

/**
 * Top component which displays something.
 */
@TopComponent.Description(
        preferredID = "DAppTopComponent",
        //iconBase="SET/PATH/TO/ICON/HERE",
        persistenceType = TopComponent.PERSISTENCE_NEVER
)
@TopComponent.Registration(mode = "editor", openAtStartup = false)
public class DAppTopComponent extends TopComponent {
    private static final AtomicInteger ID = new AtomicInteger();
    private final String PREFERRED_ID;  // 20200802
    
    final LwjglAWTCanvas lwjglAWTCanvas;
    
    /**
     * Creates new form DAppTopComponent
     */
    public DAppTopComponent() {
	initComponents();
	
	lwjglAWTCanvas = new LwjglAWTCanvas(new MyGdxGame());
	
	this.add("Center", lwjglAWTCanvas.getCanvas());
	
        // 这是一个新打开的窗口，生成新的窗口id并保存
        int id = ID.incrementAndGet();
        PREFERRED_ID = NbBundle.getMessage(DAppTopComponent.class, "ID_DAppTopComponent", Integer.toString(id));
    }

    /**
     * This method is called from within the constructor to initialize the form. WARNING: Do NOT modify this code. The content of this method is always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        setLayout(new java.awt.BorderLayout());
    }// </editor-fold>                        

    // 覆盖此方法，为TopComponent设置preferredID
    // Subclasses are encouraged to override this method to provide preferred value for unique TopComponent ID returned 
    // by WindowManager.findTopComponentID(org.openide.windows.TopComponent). Returned value should be a String, preferably 
    // describing semantics of TopComponent subclass, such as "PieChartViewer" or "HtmlEditor" etc. Value is then used by window 
    // system as prefix value for creating unique TopComponent ID. Returned String value should be preferably unique, but need not be. 
    @Override
    protected String preferredID() {
        return PREFERRED_ID;
    }

    void writeProperties(java.util.Properties p) {
        // better to version settings since initial version as advocated at
        // http://wiki.apidesign.org/wiki/PropertyFiles
        p.setProperty("version", "1.0");
        // TODO store your settings
    }

    void readProperties(java.util.Properties p) {
        String version = p.getProperty("version");
        // TODO read your settings according to their version
    }

    // Variables declaration - do not modify                     
    // End of variables declaration                   
}

package com.acuilab.bc.main.dapp;

/**
 *
 * @author admin
 */
import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;

public class MyGdxGame extends ApplicationAdapter {

    SpriteBatch batch;
    Texture img;

    @Override
    public void create() {
	batch = new SpriteBatch();
	img = new Texture("badlogic.jpg");
    }

    @Override
    public void render() {
	Gdx.gl.glClearColor(1, 0, 0, 1);
	Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
	batch.begin();
	batch.draw(img, 0, 0);
	batch.end();
    }

    @Override
    public void dispose() {
	batch.dispose();
	img.dispose();
    }
}