Servlet产生图像

public class TestImage extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("image/jpeg");
		ServletOutputStream out = response.getOutputStream();
		BufferedImage image = new BufferedImage(100,100,BufferedImage.TYPE_INT_RGB);
		
		Graphics g = image.getGraphics();
		g.setColor(Color.PINK);
		g.fillRect(0, 0, 100, 100);
		
		JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
		encoder.encode(image);
		out.close();
		
	}

	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doGet(request, response);

	}

}