Test3/src/ImageServlet.java



import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


// Image scaling :http://helpdesk.objects.com.au/java/how-do-i-scale-a-bufferedimage 
public class ImageServlet extends HttpServlet {
        private static final long serialVersionUID = 1L;
       

        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                
                final int width = 400;
                final int height = 400;
                BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
                
                Graphics2D gfx = bufferedImage.createGraphics();
                gfx.setColor( Color.white ); 
                gfx.fillRect(0, 0, width, height); //Graphics2D has many various drawing methods
                gfx.setColor( Color.blue );
                gfx.fillOval(10, 10, width-20, height-20);
                gfx.dispose(); //dispose when we are done with drawing
                
                
                //Downscale image to create a smoother looking one
                BufferedImage smallImage = new BufferedImage(width/2, height/2, BufferedImage.TYPE_INT_RGB);
                gfx = smallImage.createGraphics();
                gfx.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
                gfx.drawImage(bufferedImage, 0, 0, width/2, height/2, null);
                gfx.dispose();
                
                
                response.setContentType("image/png");
                ImageIO.write(smallImage, "png", response.getOutputStream() ); // use imageio.read to load a file to a bufferedimage
                
        }

}
1
2
3	import java.awt.Color;
4	import java.awt.Graphics2D;
5	import java.awt.RenderingHints;
6	import java.awt.image.BufferedImage;
7	import java.io.IOException;
8
9	import javax.imageio.ImageIO;
10	import javax.servlet.ServletException;
11	import javax.servlet.http.HttpServlet;
12	import javax.servlet.http.HttpServletRequest;
13	import javax.servlet.http.HttpServletResponse;
14
15
16
17	// Image scaling :http://helpdesk.objects.com.au/java/how-do-i-scale-a-bufferedimage
18	public class ImageServlet extends HttpServlet {
19	private static final long serialVersionUID = 1L;
20
21
22	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
23
24	final int width = 400;
25	final int height = 400;
26	BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
27
28	Graphics2D gfx = bufferedImage.createGraphics();
29	gfx.setColor( Color.white );
30	gfx.fillRect(0, 0, width, height); //Graphics2D has many various drawing methods
31	gfx.setColor( Color.blue );
32	gfx.fillOval(10, 10, width-20, height-20);
33	gfx.dispose(); //dispose when we are done with drawing
34
35
36	//Downscale image to create a smoother looking one
37	BufferedImage smallImage = new BufferedImage(width/2, height/2, BufferedImage.TYPE_INT_RGB);
38	gfx = smallImage.createGraphics();
39	gfx.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
40	gfx.drawImage(bufferedImage, 0, 0, width/2, height/2, null);
41	gfx.dispose();
42
43
44
45	response.setContentType("image/png");
46	ImageIO.write(smallImage, "png", response.getOutputStream() ); // use imageio.read to load a file to a bufferedimage
47
48	}
49
50	}