转换一个Graphics2D在Image或BufferedImage的 [英] Convert a Graphics2D to an Image or BufferedImage

问题描述

我在这里有一个小问题。

I have a little problem here.

我有一个小程序，在这里用户可以画在里面​​。要做到这一点，我用的是java.awt.Graphics2D中。
但是，我该怎么做才能在用户绘制图像保存为JPEG图像，或至少将其转换为一个BufferedImage还是什么？我不知道该怎么做。

I have an applet, where user can "draw" inside it. To do that, I use the java.awt.Graphics2D. But, how can I do to save the user draw image as a JPEG image, or at least, convert it to a BufferedImage or something? I don't know how to do that.

感谢。

推荐答案

我这样做的，而且运作非常良好：

I do it that way, and works very well:

BufferedImage awtImage = new BufferedImage(drawPanel.getWidth(), drawPanel.getHeight(), BufferedImage.TYPE_INT_RGB);
Graphics g = awtImage.getGraphics();
drawPanel.printAll(g);

try
{
String caminhoImagem = System.getProperty("user.home") + "\\temps\\assinatura.jpg";
FileOutputStream fos = new FileOutputStream(caminhoImagem);
JPEGImageEncoderImpl j = new JPEGImageEncoderImpl(fos);
j.encode(awtImage);
fos.close();
} catch(e) {..... }

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这是所有:)
谢谢大家：）

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That's all :) Thanks everyone :)

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