java Html 그림 전환 실현

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.imageio.ImageIO;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.text.EditorKit;
import javax.swing.text.html.HTMLEditorKit;

/**
 *   HtmlImageGenerator
 */

public class HtmlImgGenerator {
    private JEditorPane editorPane;
    private static final Dimension DEFAULT_SIZE = new Dimension(800, 800);
 
    public static Map types = new HashMap();
    static
    {
      types.put("gif", "gif");
      types.put("jpg", "jpg");
      types.put("jpeg", "jpg");
      types.put("png", "png");
    }
    public static String formatForExtension(String extension)
    {
      String type = (String)types.get(extension);
      if (type == null)
        return "png";

      return type;
    }

    public static String formatForFilename(String fileName) {
      int dotIndex = fileName.lastIndexOf(46);
      if (dotIndex < 0)
        return "png";

      String ext = fileName.substring(dotIndex + 1);
      return formatForExtension(ext);
    }

    
    public HtmlImgGenerator() {
        editorPane = createJEditorPane();
    }
 
 
 
    public void setSize(Dimension dimension) {
        editorPane.setPreferredSize(dimension);
    }
 
//    public void loadUrl(URL url) {
//        try {
//            editorPane.setPage(url);
//        } catch (IOException e) {
//            throw new RuntimeException(String.format("Exception while loading %s", url), e);
//        }
//    }
 
    public void loadUrl(String url) {
        try {
            editorPane.setPage(url);
        } catch (IOException e) {
            throw new RuntimeException(String.format("Exception while loading %s", url), e);
        }
    }
 
    public void loadHtml(String html) {
        editorPane.setEditable(false);
        editorPane.setText(html);
        editorPane.setContentType("text/html");
        onDocumentLoad();
    }
 
 
    public void saveAsImage(String file) {
        saveAsImage(new File(file));
    }
 
    public void saveAsImage(File file) {
        BufferedImage image = getBufferedImage();
 
        BufferedImage bufferedImageToWrite = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);
        bufferedImageToWrite.createGraphics().drawImage(image, 0, 0, Color.WHITE, null);
 
        final String formatName =  formatForFilename(file.getName());
        try {
            if (!ImageIO.write(bufferedImageToWrite, formatName, file))
                throw new IOException("No formatter for specified file type [" + formatName + "] available");
        } catch (IOException e) {
            throw new RuntimeException(String.format("Exception while saving '%s' image", file), e);
        }
    }
 
    protected void onDocumentLoad() {
    }
 
    public Dimension getDefaultSize() {
        return DEFAULT_SIZE;
    }
 
    public BufferedImage getBufferedImage() {
        JFrame frame = new JFrame();
        frame.setPreferredSize(editorPane.getPreferredSize());
        frame.setUndecorated(true);
        frame.add(editorPane);
        frame.pack();
 
        Dimension prefSize = frame.getPreferredSize();
        BufferedImage img = new BufferedImage(prefSize.width, prefSize.height, BufferedImage.TYPE_INT_ARGB);
        Graphics graphics = img.getGraphics();
 
        frame.setVisible(true);
        frame.paint(graphics);
        frame.setVisible(false);
        frame.dispose();
 
        return img;
    }
 
    protected JEditorPane createJEditorPane() {
        final JEditorPane editorPane = new JEditorPane();
        editorPane.setSize(getDefaultSize());
        editorPane.setEditable(false);
          EditorKit  kit = new HTMLEditorKit();
        editorPane.setEditorKitForContentType("text/html", kit);
        editorPane.setContentType("text/html");
     
        return editorPane;
    }
 
    public static void main(String[] args) {
    	/*
        HtmlImgGenerator imageGenerator = new HtmlImgGenerator();
        imageGenerator.setSize(new Dimension(1000, 1000));
        String url = new File("D:/test.html").toURI().toString();
        imageGenerator.loadUrl(url);
        //imageGenerator.loadHtml(String html);//    html
        imageGenerator.getBufferedImage();
        imageGenerator.saveAsImage("D:/aaa.png");
        */
    	String content="
   
       
           2（  ）：
               ,      ,        ,    2（  ）,                      07     1     ，                 。
       。
      /      ：                    
   2020 01 01 
";

    	html2Img("        ",content,"D:/aaa.png");
    }
    
    /**
     * 
     * @Description HTML Image
     * @param htmText HTML     
     * @return      Image Location
     */
    public static String html2Img(String title,String content, String saveImageLocation){

    	
        StringBuffer buffer = new StringBuffer();
 

        	buffer.append("  ");
        	buffer.append("  ");
        	buffer.append("