How to convert BufferedImage to image to display on JSP

Question

I would like to convert BufferedImage to an image that will display on JSP page. How can I achieve this?

Answer 1

You need not convert BufferedImage to Image to display it on the jsp page. Because, Java 6 JAXB provides javax.xml.bind.DatatypeConverter.printBase64Binary(byte[]) String to convert byte[] in to base 64 string. The base 64 string can be displayed using the html tag by specifying the source data as base 64 i.e. src="data:image/jpg;. Here is the sample program referred from this post.

sample.jsp (test passed) :

<%@page import="java.awt.image.BufferedImage"%>
<%@page import="javax.imageio.ImageIO"%>
<%@page import="java.io.*"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>







<%
BufferedImage bImage = ImageIO.read(new File("/home/visruth/Desktop/Visruth.jpg"));//give the path of an image
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write( bImage, "jpg", baos );
baos.flush();
byte[] imageInByteArray = baos.toByteArray();
baos.close();
String b64 = javax.xml.bind.DatatypeConverter.printBase64Binary(imageInByteArray);
%>


    
As of v6, Java SE provides JAXB
    
          

IMO, this approach is perfect for small sized images like . Otherwise using direct url of the image will be fine in src attribute eg:-