How to set the size of an image

Question

hi,
I have a database which contain an image. now i want to retrieve this image & want to show this image in my jsp page as user's defined size. I have following code. My following code shows the original size of an image. Now i want to see different size of this image. How is this possible? I know control the size of this image after saving this image
in a file. but i want to control the size of this image without saving this image in a file? IS it possible ? Is there anybody can help me?
Please help me.
ResultSet rs = null;
PreparedStatement ps=null;
     InputStream sImage=null;
     byte[] imagebyte=null;
     String var;
     String name=request.getParameter("RegName") ;
     String image =request.getParameter("ImageFile");
     out.println(name);
     out.println(image);
     out.println();
     ps=con.prepareStatement("insert into t_image (ID, Image) values(?,?);");
       File file =new File(image);
    FileInputStream in = new FileInputStream(file);
    ps.setInt(1,1234);
    ps.setBinaryStream(2,in,(int)file.length());
    ps.execute();  
    rs =stm.executeQuery("select Image from t_image where ID=1234");
    if(rs.next()) {
   imagebyte =rs.getBytes(1);
    response.reset();
    response.setContentType("image/jpeg");
    %>
<%
response.getOutputStream().write(imagebyte);
%>
<%
    response.flushBuffer();
%>With regards
Bina

Answer 1

hi,
I have a database which contain an image. now i
want to retrieve this image & want to show this
image in my jsp page as user's defined size. I have
following code. My following code shows the original
size of an image. Now i want to see different size
of this image. How is this possible? I know control
the size of this image after saving this image
n a file. but i want to control the size of this
image without saving this image in a file? IS it
possible ? Is there anybody can help me?This has nothing to do with JDBC; you can only store and retrieve the image you have and there's no image manipulation functions in JDBC (nor should there be).
I can see 2 options:
1) serve the image file as is, but in the jsp that writes the html that contains the "<img>" tag that gets it, use the "height" and/or the "width" to scale the suppied image to presentation size you want.
2) find some image manipulation code that will convert the image into the size you want
Option 1 will work well if the problem you have is merely refining the image size for presentation. Option 2 is your only coice if it's the image files size itself you really want to change, not just it's appearance on a page.