How to get the side of an image from the database?

[yadagereavinash]

I am trying to retreive a image from mysql database and display it on a jsp page.

But I am not getting how to set the size of the image...

[nathj]

Hi,

You need to used the BufferedImage class and the ImageIO class. I have done this recently within the confines of the Blackbord Learn platform. I hope this code snippet helps you out:

    BufferedImage bi = ImageIO.read(new File(fullPathBase + imgSrc));
        double currentWidth = bi.getWidth();
        double currentHeight = bi.getHeight();
        double displayHeight = 0;
        double displayWidth = 0;
        double ratio = 1.00;
 
        if(currentHeight > 150 || currentWidth > 150)
        {
            if(currentHeight >= currentWidth)
            {
                ratio = currentHeight / 150 ;
            }
            else
            {
                ratio = currentWidth /150;
            }
        }
 
        displayHeight = currentHeight / ratio;
        displayWidth = currentWidth / ratio;
        Double dEffectLeftPos = displayWidth - 4;
        int effectLeftPos = dEffectLeftPos.intValue();
 
    %>
 
    <div id="esfWelcomeImgCont">
    <img id="esfWelcomeImg" src="<%=imgSrc%>" height="<%=displayHeight %>" width="<%=displayWidth %>" title="<%=name%>" alt="<%=name%>" /></div>
    <div id="esfWelcomeTxtCont" style="left:<%=effectLeftPos %>px">
    <h3>Welcome to Compass</h3>
    <p><%=name%></p>
 

Note that the imgSrc variable has been set accordingly earlier in my application. Have look over the Java API for:
java.io.*
java.net.*
java.awt.image.BufferedImage
javax.imageio

This should see you right.
Hope it helps
nathj