How can I pass more than one parameter to a servlet??
I’m using JDeveloper, and I need to pass several parameters to an image component, wich load de image from data base using a servlet.

If can any one helme I will apreciate. Thanks

I got it to work that day itself. Thank you for that.

I changed the way i was invoking the servlet.

First i used this way, it did not work.

Below worked for me.

But i did not understand why the earlier code did not work.

Another one query, i have is, the resizing of image is reducing the quality of image a lot. Is there anyway we can make not to degrade the quality so much.

Thank you for the code, it was helpful.

Yes, my servlet is setup correctly. Using Netbeans IDE to develop, i have created simple java web application project in it to test this sevlet.

image
SERVLET.ImageResizer
1

image
/image

30

index.jsp

yes web application is set to run in root context. I have just changed the folder names to different. like /Albums refers to /Images i have changed in the servlet code and even while calling.

I think its not invoking Servlet from img tag. I have JDK 1.6 and Tomcat 6.

Your feedback will be help ful.

I was looking some code like this itself for resizing images on load. But its not wokring for me, it does not show any error, it loads up but does not show image.

I have checked most of the things, its good. But when i went to view source from firefox and clicked the src of the image, it gave below error.

“The requested resource (/image) is not available.”

Waiting for the replies.

Thank you.
Kirun

BufferedImage bufferedImage = new BufferedImage(image.getWidth(null), image.getHeight(null),BufferedImage.TYPE_INT_RGB);

…fails because image.getWidth(null) and getHeight(null) are returning -1. Did anything change in JDK 1.6?

Thanks for any input!

Here is the stack trace:

java.lang.IllegalArgumentException: Width (-1) and height (-1) cannot be <= 0
at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:999)
at java.awt.image.BufferedImage.(BufferedImage.java:312)
at strata.ws.ImageImportServlet.toBufferedImage(Unknown Source)
at strata.ws.ImageImportServlet.scaleImage(Unknown Source)
at strata.ws.ImageImportServlet.processRequest(Unknown Source)
at strata.ws.ImageImportServlet.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)

{code}private BufferedImage scaleImage(Image sourceImage, int width, int height)
{
ImageFilter filter = new ReplicateScaleFilter(width,height);
ImageProducer producer = new FilteredImageSource
(sourceImage.getSource(),filter);
Image resizedImage = Toolkit.getDefaultToolkit().createImage(producer);

return this.toBufferedImage(resizedImage);
}

private BufferedImage toBufferedImage(Image image)
{
image = new ImageIcon(image).getImage();
BufferedImage bufferedImage = new BufferedImage(image.getWidth(null), image.getHeight(null),BufferedImage.TYPE_INT_RGB);
Graphics g = bufferedImage.createGraphics();
g.setColor(Color.white);
g.fillRect(0,0,image.getWidth(null),image.getHeight(null));
g.drawImage(image,0,0,null);
g.dispose();

return bufferedImage;
}{code}

I am looking for a way to get the pics uploaded before they hit the browser in the for of an application attached to my site. Once this happens it can then be sent to the browser and into the server as its the slow browser thats hurting me as internet speed of clients is quite low.

Is there an application that can be modified.