Display image in struts

Hi
i am new in struts and i have a image in my data base but i am unable to show that image in struts
what i did tilll now is
i get that images content as binary data and make the InputStream object
but when i try to write that InputStreams data it will not work and didnt show any image
i set the content type image/gif but still facing problem
can any one tell me the solution
thanks alot

lQuery = "Select ItemName,CategoryId,Item_image,item_Desc2 from item_master where ItemId='00c63f38-95d9-1028-b9d1-cb9eb7b97c40' and CategoryId='1823bc79-726e-1028-b4b9-b993b5d1f868'";
     lStatement = lDAOFactory.getStatement(lConnection);
     lResultSet = (ResultSet) lDAOFactory.executeQuery(lQuery, null, null, DAOFactory.SQLTYPEQUERY,lConnection, lStatement);
     while(lResultSet.next())
     Blob blob = lResultSet.getBlob("item_image");
     InputStream istream = blob.getBinaryStream();
     result.setM_inStreamItem_Image(istream);
this retrieve the image from the data base
InputStream istream =l_CatalougeItem.getM_inStreamItem_Image();
if(istream!=null)
OutputStream out= response.getOutputStream();
byte dataBytes[] = new byte[istream.available()];
     int byteRead = 0;
     int totalBytesRead = 0;
while (totalBytesRead < istream.available())
byteRead = istream.read(dataBytes, totalBytesRead, istream.available());
     totalBytesRead += byteRead;
out.write( dataBytes );     
it write the image in the socket

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