Month: May 2014

Only JSP

<%

BufferedImage bImage = ImageIO.read(new File(“/home/mohit/Desktop/mohit.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);

%>

<img src=”data:image/jpg;base64, <%=b64%>” alt=”Image not found” />

When buffered image is passed to JSP as session attribute

Servlet

request.getSession().setAttribute(“bufferedimage”, bufferedimage);

JSP

<%

BufferedImage bImage =  (BufferedImage) session.getAttribute(“bufferedimage”);

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);

%>

<img src=”data:image/jpg;base64, <%=b64%>” alt=”Image not found” />

When buffered image stream is passed to JSP as session attribute

Servlet

ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(bufferedimage, “jpg”, baos );
baos.flush();
byte[] imageInByteArray = baos.toByteArray();
baos.close();
String b64 = javax.xml.bind.DatatypeConverter.printBase64Binary(imageInByteArray);
request.getSession().setAttribute(“b64”, b64);

JSP

<img src=”data:image/jpg;base64, <%=b64%>” alt=”Image not found” />

Set following code in bat file used to start weblogic server:

set JAVA_OPTIONS=-Dweblogic.j2ee.application.tmpDir=c:/temp %JAVA_OPTIONS%

set JAVA_OPTIONS= %JAVA_OPTIONS% -Dcom.sun.xml.ws.transport.http.client.HttpTransportPipe.dump=true -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=7077

 

Verification:

You should see something like following on weblogic console.

 

 

And then use debug port 7077 (or anything else) as mentioned in this file.