将html转换成image图片png格式

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;

import javax.imageio.ImageIO;
import javax.swing.JTextPane;
import javax.swing.border.EmptyBorder;
import javax.swing.plaf.basic.BasicEditorPaneUI;

/**
 * 将html转换成Image图片
 * 
 * @author lambert.wang
 *
 */
public class HtmlToImageUtils {
	public static int	DEFAULT_IMAGE_WIDTH		= 1200;
	public static int	DEFAULT_IMAGE_HEIGHT	= 700;

	/**
	 * 画页面的方法
	 * 
	 * @param g 画笔
	 * @param panel 画板
	 * @return
	 */
	public static void paintPage(Graphics g, JTextPane panel) {
		Graphics2D g2 = (Graphics2D) g;
		g2.translate(0f, 0f);
		panel.paint(g2);
	}

	/**
	 * html转换为png文件
	 *
	 * @param bgColor 图片的背景色
	 * @param html html的文本信息
	 * @param width 显示图片的text容器的宽度
	 * @param height 显示图片的text容器的高度
	 * @param eb 設置容器的边框
	 * @return
	 * @throws Exception
	 */
	public static byte[] html2jpeg(Color bgColor, String html, int width, EmptyBorder eb) throws Exception {
		JTextPane tp = new JTextPane();
		if (eb == null) {
			eb = new EmptyBorder(0, 50, 0, 50);
		}
		if (bgColor != null) {
			tp.setBackground(bgColor);
		}
		if (width <= 0) {
			width = DEFAULT_IMAGE_WIDTH;
		}
		tp.setBorder(eb);
		tp.setContentType("text/html");
		tp.setText(html);
		tp.getContentType();
		byte[] bytes = null;
		Dimension d = ((BasicEditorPaneUI) tp.getUI()).getPreferredSize(tp);
		int height = d.height + 50;
		tp.setSize(width, height);
		BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
		Graphics g = image.getGraphics();
		g.setClip(0, 0, width, height);
		paintPage(g, tp);
		g.dispose();
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		ImageIO.write(image, "png", baos);
		baos.flush();
		bytes = baos.toByteArray();
		baos.close();
		return bytes;
	}
}

　　调用方法:

byte[] bytes = HtmlToImageUtils.html2jpeg(Color.white, html, 1300, new EmptyBorder(0, 0, 0, 0));