Displaying blob image using adf

Hi ,
We are using adf in our application. We have to disaply blob image from oracle data base on the adf jspx page.This jspx page consists of 2 jsff files.
I have created an httpservlet and called on the source parameter of image this httpservlet with binding similar as below:
source="/httpServletName?id=#{bindings}}"
I am able to display the image.
But my concern is that I am using iterator for displaying images as there can be multiple records in the table but for every recoed I am getting same image. Please suggest how can I display multiple images coming with respect to various records of data base.
thanks & Regards

Hi,
After attempting the solution given above also I am getting the same issue.
On the jspx page I want to show Imageid, imagedescription and photo .
I have 4 records coming from database on the jspx page. I have found that all the data (imageid, description) is first displayed on the jspx and then control gets transferred on the ImageServlet only once and in request.getParameterMap() I get only one "ID" value i.e. the ID value of last record (4th record) coming from data base and hence in all the 4 records on jspx I am getting the same image (i.e. the image in the 4th record of db). Please help me to proceed on this issue.
On jspx, I have given image source value as :
<af:image shortDesc="image"
id="image1"
source="/imageservlet?id=#{bindings.Id.inputValue}}"/>
Thanks

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HELP!!!!Display blob image using JSP

Hi,
I am trying to blob image using JSP but it did not display successfully.
Can someone help, please?
below are the codes snippet:
<td>
<img src="display_image.jsp?ID=<%=request.getParameter("ID") %>" width="115" border="0">
</td>
byte[] image_blob = details.getImageByteArray();
response.setContentType("image/jpeg");
//response.setContentType("image/gif");
//BEGINNING OF SECTION TO DISPLAY IMAGE
/*OutputStream fos = null;
fos = response.getOutputStream();
fos.write(image_blob, 0, image_blob.length);
fos.flush();
fos.close();*/
java.io.FileOutputStream fos1 = new java.io.FileOutputStream("C:\\"+id+".jpg");
fos1.write(image_blob);
fos1.close();
OutputStream o = response.getOutputStream();
System.out.println("o");
o.write(image_blob);
System.out.println(image_blob);
System.out.println("write image");

Use Java Image or BufferedImage instead of obscure byte array for image data.
Here's an example code for a JSP document:
<%
String wid = request.getParameter("percent");
String cost = request.getParameter("suchi");
response.reset(); //IMPORTANT !
response.setContentType("image/jpeg");
// for testing purpose
if (wid == null) wid = "58";
if (cost == null) cost = "3400";
float dleng = Float.parseFloat(wid) * 2.6f;
RenderedImage rimg = drawGraph(dleng);
OutputStream os = response.getOutputStream();
try{
ImageIO.write(rimg, "jpg", os);
catch(IOException e){
os.flush();
%>
<%!
public RenderedImage drawGraph(float barLength){
final int w = 800;
final int h = 18;
final int x = 0;
final int y = 0;
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = img.createGraphics();
Color c = new Color(Integer.parseInt("FF9999", 16));
g2.setColor(Color.yellow);
g2.fillRect(x, y, w, h);
g2.setColor(c);
g2.fillRect(x, y, (int)barLength, h);
g2.dispose();
return img;
%>

Managing blob images using ADF and JSF or struts

Hello everyone. I am an ADF newbe and I am developing a web app. that has to manage (display, insert,update and delete) blob images from/to an oracle DB. I've seen the "howto" on image managing using intermedia and struts, but, for this new app I wanted to use JSF (something that is not mandatory) and, what is important is that the DB has already stored the images in blob format.
Can anybody point me in the right direction please??? Is there any howtos on this subject???
Thanks in advance.

jfin wrote:
but so far I have to say that I like the fact that I'll have to do very little
System.out.println(<..../>....<>....</>).Assuming that you rather mean out.println() where out is the ServletOutputStream reference returned by HttpServletResponse#getOutputStream(), I can only agree with you. That's certainly not the way how JSP/Servlet code is to be written. The maintainability, extendability, reusability and testability would be far below the freezing point then. You need to write presentation logic in JSP files, not in Servlets and absolutely not in scriptlets inside a JSP.
When you need to write presentation logic which may change per request, use JSTL and EL for that. Again, not scriptlets. For business and controlling logic, use Servlets. For transfer of data, use javabeans (DTO's, VO's). For data access logic, use DAO classes which are to be interacted by servlets.
JSF removes the need for creating Servlets and using JSTL/EL in JSP files. You just have JSP pages with JSF tags for presentation and javabeans for the request values and backing beans for business logic.
When would one use JSF over the other two? When Struts2? When Shale?And you ask that in a JSF forum? At least my opinion is predictable :)

Problem with displaying BLOB images on JSP page using a servlet

hi. I have a big problem with displaying BLOB images using JSP. I have a servlet that connects to the oracle database, gets a BLOB image , reads it, and then displays it using a BinaryStream. The problem is , this works only when i directly call that servlet, that is http://localhost:8080/ImageServlet. It doesn't work when i try to use that servlet to display my image on my JSP page (my JSP page displays only a broken-image icon ) I tried several coding approaches with my servlet (used both Blob and BLOB objects), and they work just fine as long as i display images explicitly using only the servlet.
Here's what i use : ORACLE 10g XE , Eclipse 3.1.2, Tomcat 5.5.16 , JDK 1.5
here is one of my image servlet's working versions (the essential part of it) :
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          response.setContentType("image/jpeg");
          response.addHeader("Content-Disposition","filename=42.jpeg");
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               InputStream istr=blob.getBinaryStream(1L);
                int size=blob.getBufferSize();
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               ostr.write(buff,0,len);
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         ostr.close(); and my JSP page code :
<img src="/ImageServlet" border="0" > If you could just tell me what i'm doing wrong here , or if you could show me your own solutions to that problem , i would be very greatful ,cos i'm realy stuck here , and i'm rather pressed for time too. Hope someone can help.

I turns out that it wasn't that big of a problem after all. All i had to do was to take the above code and place it into another JSP page instead of into a servlet like i did before. Then i just used that page as a source for my IMG tag in my first JSP. It works perfectly well. Why this doesn't work for servlets i still don't know, but it's not a problem form me anymore . Ofcourse if someone knows the answer , go ahead and write. I would still appriceatte it.
here's the magic tag : <img src="ImageJSP.jsp" border="0" > enjoy : )

I want to display BLOB image in JSP Using html tags IMG src=

GoodAfternoon Sir/Madom
I Have got the image from oracle database but want to display BLOB image using <IMG src="" > Html tags in JSP page . If it is possible than please give some ideas or
Send me sample codes for display image.
This code is ok and working no problem here Please send me code How to display using html tag from oracle in JSP page.
<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<%@ page import="javax.swing.ImageIcon;" %>
      <%
        out.print("hiiiiiii") ;
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            // Declare statement.
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                    connect to database. */
                connection = DriverManager.getConnection(connectionURL, "scott", "root");
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                      byte[] bytearray = new byte[1048576];
                      int size=0;
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                      response.setContentType("image/jpeg");
                      while((size=sImage.read(bytearray))!= -1 ){
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           finally {
                // close all the connections.
                rs.close();
                psmnt.close();
                connection.close();
     %>
     Thanks

I have done exactly that in one of my applications.
I have extracted the image from the database as a byte array, and displayed it using a servlet.
Here is the method in the servlet which does the displaying:
(since I'm writing one byte at a time, it's probably not terribly efficient but it works)
     private void sendImage(byte[] bytes, HttpServletRequest request, HttpServletResponse response) throws IOException {
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          for(int n = 0; n < bytes.length; n++) {
               sout.write(bytes[n]);
          sout.flush();
          sout.close();
     }Then in my JSP, I use this:
<img src="/path-to-servlet/image.jpg"/>
The name of the image to display is in the URL as well as the path to the servlet. The servlet will therefore need to extract the image name from the url and call the database.

Displaying BLOB image by using ADF Faces

Hi all,
I digged the forum but couldn't find any satisfied answer about displaying BLOB images by using ADF Faces.
I have insterted POJO object to Oracle database but couldn't find any way to display blob (in java byte [] ) data in POJO.
I have read the POJO object from database which contains two field; one of them is id field and other is BLOB data which holds GIF or JPG image and I want to display this image another page which contains also other fields / records ...
thanks for your answers
regards...
--baris

This thread at Sun : http://forum.java.sun.com/thread.jspa?threadID=513804&messageID=2445090
talks about two options for creating a graphicImage jsf tag. (img tag)
1. Make the img tag url refer to a servlet (instead of a static image file)
2. Embed the image into the tag as inline base64 encoded data.
2a. Use an <Object> tag with inline data.
1. Looks a bit complex for a simple problem.
2 and 2a don't work with some browsers.
- And I've not yet figured out how to hook into the ADF Faces table-rendering logic to get it to add my image column. My table binds to a collection DataControl, [which in turn retrieves from a findAllItems call on a session facade, which uses my domain model, and wraps up access to a TopLink pesistence layer]. The framework just ignores my byte[] attribute when creating the jsf table from the DataControl. All string, int etc. attributes get represented correctly in the jsf table output.

Display BLOB (image) column in (interactive) report

Hi,
I have a field called "picture" in my table "details" which is of type BLOB. i also have a field for "MIMETYPE" and "filename"
i additionally have a "name" and "description" columns which i need to display along with the picture as columns in a report (preferably interactive).
i have also modified the BLOB display format as per
http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/apex/r31/apex31nf/apex31blob.htm
what i am missing is the correct query. if possible, i would like to control the size of the picture rendered within the report like say 40*50.
I have also referred to the thread
APEX 3.1 Display BLOB Image
But i don't know how to place the
dbms_lob.getlength("BLOB_CONTENT") as "BLOB_CONTENT"
in my query.
The above also makes the report column as of type "number". is this expected?
Any help would be much appreciated.
Regards,
Ramakrishnan

You haven't actually said what the problem is?
>
I have a field called "picture" in my table "details" which is of type BLOB. i also have a field for "MIMETYPE" and "filename"
i additionally have a "name" and "description" columns which i need to display along with the picture as columns in a report (preferably interactive).
i have also modified the BLOB display format as per
http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/apex/r31/apex31nf/apex31blob.htm
what i am missing is the correct query.
I have also referred to the thread
APEX 3.1 Display BLOB Image
But i don't know how to place the
dbms_lob.getlength("BLOB_CONTENT") as "BLOB_CONTENT"
>
Something like:
select
          name
        , description
        , dbms_lob.getlength(picture) picture
from
          details
if possible, i would like to control the size of the picture rendered within the report like say 40*50.For images close to this size it's easy to do this for declarative BLOB images in interactive reports using CSS. Add a style sheet with:
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display: block;
width: 40px;
border: 1px solid #999;
padding: 4px;
background: #f6f6f6;
}where the <tt>PICTURE</tt> value in the attribute selector is the table header ID of the image column. Setting only one dimension (in this case the width) scales the image with the correct aspect ratio. (The border, padding and background properties are just eye candy...)
However, scaling large images in the browser this way is a huge waste of bandwidth and produces poorer quality images than creating proper scaled down versions using image tools. For improved performance and image quality, and where you require image-specific scaling you can use the database ORDImage object to produce thumbnail and preview versions automatically, as described in this blog post.

How to display an image using MIDP on Palm?

How can I display an image using MIDP on Palm? The following code works on the Siemens SL45i, but not on Palm:
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append("item 1", image);

Have found the exact same problem when trying to display an image (other then the default (null)) in a list, on a Palm.
The image displays correctly on a form, but when set on an element in the list, it does not display. (mind you this is in both emulator mode and on the real device)
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The Sun documetation states, that you should not rely on it been displayed (obviously it's an implementation issue with the Palm, and other devices I have not tried)
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I have tried again and changed the path in the topic HTML
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How do I display blob (image) in a Portal Report

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Thanks
Belinda

Hi,
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Display BLOB Image in a JSP page.

Hi, Is there any easy way to display a Image in the browser using a JSP and an Oracle BLOB. I would like any code examples that anyone can provide me. I would like as many ways to do this as possible.
Thanks Brian

You can do it in 2 ways:
1. Get the BLOB from the DB and then write it into the local harddisk where the Web Server is located and then give the path in the <IMG SRC> Tag.
2. In the JSP, when you specify a IMG Tag
<IMG SRC='FileDisplayServlet?hdImgName=new.gif'>
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Hope this helps.
Thanks and regards,
Pazhanikanthan. P

Display Blob image in oracle forms

i have an application in which i have to store all the employee's photos.
i created the Photo column in database with datatype Blob.
I created the form to store image that successfully stores image in database.
bUt now what should i Do to display that image on Image Item when i execute_query.
I m using Oracle forms 6i version & oracle 10 g database

my image item contains all default properties set that are done when i create a database block PHOTO.
i didnt set any property.
Edited by: rupearlkaushal on Jun 8, 2012 6:33 AM

Problem displaying tiff files using ADF

Hi,
I have some TIFF files in a table - IMAGE_TABLE
ID NOT NULL NUMBER
DESCRIPTION VARCHAR2(40)
IMAGE ORDSYS.ORDIMAGE
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Thanks.

Help displaying an image using the canvas!!!!!!!!

Hey guys
I don't know whether I am not grasping some concepts well.I have been going mad trying to get the code working
Here is the code
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.*;
* @author Administrator
* @version
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private Command exitcommand = new Command("Exit",Command.SCREEN,1);
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protected void pauseApp() {
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display = Display.getDisplay(this);
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canvas.addCommand(exitcommand);
canvas.setCommandListener(this);
display.setCurrent(canvas);
public void exitMIDlet() {
notifyDestroyed();
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import java.io.*;
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if (currentimage!= null){
System.err.println("Image create successfully");
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int x = getWidth();
int y = getHeight();
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When I run the program(using J2ME wtk04), this is the outcome.
Image created succesfully
Canvas instiatiated successfully
null
Here are my questions
1) when is the paint method precisely called by the system?after a reference to the canvas class is created?
2) is it wise to create the image when instiating the canvas class?( initially created the image using a separate thread)-when sould the image be created?
3)how to let the application know when to use the image when painting the display area?
I am just trying the logistics here. It is very crucial to me to understand the bolts of this as the core f my project fouses on the man machine interface development.(For the project, the cilent application is quering for the map using HTTP)
I use a png file of size 161 bytes. Is that too big for testing purposes.
I would all the help that I can get. thanks in advance

1) when is the paint method precisely called by the system?after a reference to the canvas class is created?
After the canvas is set as the current display, and after that, after the repaint() is called.
2) is it wise to create the image when instiating the canvas class?( initially created the image using a separate thread)-when sould the image be created?
It's better to create the image in the very begining of the program e.g. in the midlet initialization. You can call the created image as often as you like later on
3)how to let the application know when to use the image when painting the display area?
you have to tell it :))
you can use if-then, switch, or anything else
and you can use clipping too

Displaying BLOB image in an item

I have a table with a BLOB column holding an image.
I can set up a report region with a query on the column like this (the whole sql query is omitted for simplicity, I am just showing relevant column):
dbms_lob.getlength(a.product_logo)
and then put a mask on the report column:
IMAGE:PROJECT:PRODUCT_LOGO:PROJECT_ID::::::inline:Download
and it works. The report region, when ithe page runs, displays the image.
My problem is this...
I am trying to set up a page where I already have an html region serving other purposes. I want to set up an item under that region that would display my image. I create an item of "Display As Text" type.
I then enter my magic query dbms_lob.getlength(a.product_logo) into the item's "Source value or expression" field, while I set the "Source type" to "SQL Query". In the format mask for the item, I enter the same mask I showed above - "IMAGE:PROJECT:PRODUCT_LOGO:PROJECT_ID::::::inline:Download".
I run the page and it doesn't work. The item comes back with a number. I am guessing it's the actual getlength value. What else am I missing? Or is it even possible to display an image BLOB through an item and not a report column?
Thanks
Boris

Hi,
Install demonstrative application and check page 6
To install demonstrative app go
Home>Application Builder>Create
and select Demonstration Application
Br,Jari

Displaying blob image using adf

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