Problem for displaying image in jsp

I like to retrieve and display image from database in jsp file. Now, image has been retrieved and store in session. But it cannot be displayed in jsp. Who can help me? Thanks a lot!
Codes like below:
<%
byte[] b = (byte[])session.getAttribute("sessionName");
System.out.println(b.length); //the length can be printed at console successfully
if(b != null) {
response.setContentType("image/*");
OutputStream toClient=response.getOutputStream();
toClient.write(b);
toClient.flush();
toClient.close();
%>

JSP is designed to return text/html documents.
As such it automatically calls getWriter() to return a character stream. (places it in the implicit variable "out"
Seeing as you want to return bytes, instead of character data, the JSP technology is not applicable
Calling getOutputStream after getWriter has been called results in an IllegalStateException
So calling getOutputStream in a JSP will ALWAYS throw an exception.
Cheers,
evnafets

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Problem in displaying image on jsp page

I want to display an image on jsp page.I copied the image the image in WebContent folder.
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<img src="/image.gif" height="50" width="50"> but when i run it in the browser nothing gets diplsyed.
also when i use the image container and select the source option that image is not displayed in the WebContents file..plz help.

Hi,
Seems that the Problem is there with the way how you specifuied the Image relative Path:
You have specified the below: The opath of image starts with (/) forward slash:
*<img src="/image.gif" height="50" width="50">*
It means to access this Image WebLogic Container will form a Path like this:
http://localhost:7001/image.gif
BUT may be the image is available inside your Context root: So Change the <Img> tag like following in your JSP:
*<img src="image.gif" height="50" width="50">*
(*NOTE:* Never Start your src path with a Preceesing /)
Now WLE will consider the path like below ..if your Applications Context root is "TestApp"
http://localhost:7001/TestApp/image.gif
I am Assuming that Inside the TestApp Application "image.gif" And "your.jsp" jSP pages are Co-Located (Means available in the Same Directory).
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Magical Stuff)

Problem in displaying images

Dear JSP/Servlet experts,
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try this
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vasanth

Display image on jsp page

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Best way is to use a servlet for this.
<img src="path/to/imageservlet?id=someidentifier">

<img src="path/to/imageservlet/someidentifier">In the servlet's doGet() just write code which gets an InputStream of the image (either directly generated, or just read from the local disk file system, if necessary with help of ServletContext#getRealPath(), or even from the DB by ResultSet#getBinaryStream()) and writes it to the OutputStream of the response. That's basically all. Don't forget to buffer the streams properly to speedup performance and to save memory.
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Problem in displaying images one by one in JList

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http://forum.java.sun.com/thread.jspa?threadID=789943
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Where is the scaling done? In the ListCellRenderer? Regardless of where that is being done, I assume you are caching the scaled images after you scale them, right? If not, consider adding some sort of caching.
This should do the trick...
Rework your ListCellRenderer to check to see if a scaled version of the image is available. If not, start a thread to do the scaling and create an ImageIcon. In the meantime, while that thread is running, have the renderer return some sort of stock icon, like a little generic image icon. When the scaling thread completes, make a call to repaint() on the JList so the cell renderer gets re-asked for the icons. This time around, the renderer should notice that a scaled version (the ImageIcon) is available. Return that. So, this method doesn't guarantee that the images will be produced in order, 1...2...3..., but it will return images as they become available, and the overall JList rendering won't wait until all 100 are ready. If you want them returned in order, just do all of the scaling in a single thread and queue up the images to be scaled, in order.
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Problem with displaying image

Hello!
Sorry, I'm a beginner in APEX and have some problems with displaying images in my application. I have read the same topic but unfortunately didnt find the solution.
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table test (
NAME NOT NULL VARCHAR2(4000)
ID NUMBER
BLOB_CONTENT BLOB
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1009316 wrote:
Hello! Welcome to the forum: please read the FAQ and forum sticky threads (if you haven't done so already), and update your forum profile with a real handle instead of "1009316".
When you have a problem you'll get a faster, more effective response by including as much relevant information as possible upfront. This should include:
<li>Full APEX version
<li>Full DB/version/edition/host OS
<li>Web server architecture (EPG, OHS or APEX listener/host OS)
<li>Browser(s) and version(s) used
<li>Theme
<li>Template(s)
<li>Region/item type(s) (making particular distinction as to whether a "report" is a standard report, an interactive report, or in fact an "updateable report" (i.e. a tabular form)
With APEX we're also fortunate to have a great resource in apex.oracle.com where we can reproduce and share problems. Reproducing things there is the best way to troubleshoot most issues, especially those relating to layout and visual formatting. If you expect a detailed answer then it's appropriate for you to take on a significant part of the effort by getting as far as possible with an example of the problem on apex.oracle.com before asking for assistance with specific issues, which we can then see at first hand.
Sorry, I'm a beginner in APEX and have some problems with displaying images in my application. I have read the same topic but unfortunately didnt find the solution.
So.. I have the interactive report
table test (
NAME NOT NULL VARCHAR2(4000)
ID NUMBER
BLOB_CONTENT BLOB
MIME_TYPE VARCHAR2(4000))
I need to display the column blob_content.This is described in the documentation: About BLOB Support in Forms and Reports and Display Image. There's an OBE tutorial that followed the introduction of declarative BLOB support in 3.1 as well.

Problems for displaying values

Hi,
Iam using struts and hibernate, am inserting values into database successfully. But am facing some problem for displaying values in VIEW page.. Am maintainig Session in action servlet..In jsp page only first row displayed numbertimes(depends on number rows in DB) ex i have 4 rows different values. But in View page only first row displayed 4 times. How can i displyed properly .plz help me its urgent?
in advance thanks?

Hi Amol,
in the iview property is the isolation method set to url or to embeded(it should be url)because this might cause the problems described here.
hope it helps,
Yoav

Problem for displaying values

Hi,
Iam using struts and hibernate, am inserting values into database successfully. But am facing some problem for displaying values in VIEW page.. Am maintainig Session in action servlet..In jsp page only first row displayed numbertimes(depends on number rows in DB) ex i have 4 rows different values. But in View page only first row displayed 4 times. How can i displyed properly .plz help me its urgent?
in advance thanks?

Babu,
This has been discussed in many old threads, try to find them. Also u can refer to article "Dependent Dynamic message choicelists ", at my blog
http://www.mukx.blogspot.com/
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I create a JSP portlet. But The portlet can't display image(gif file, jpg file). I have modified the provider.xml and the following line is added:
<imageURL>URL_Path</imageURL>
But, the image still cannot be displayed.
How can I display image in JSP portlet?

Leo Cheung,
You could try the following :
1. Add a virtual directory path Alias 'imgf' in the Apache configuration file httpd.conf to load the image file. Add the following line under the alias section :
Alias /imgf/ "<your directory>\images/"
2. Place your gif/jpg files (eg., work.gif) in the images directory.
3. Use the IMG tag of HTML :
<IMG src="/imgf/work.gif" border=0 width=80 height=80> in the JSP file at the location where you need to display the image.
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Displaying Image In JSP for Mozilla Browser

Hai all
How to display the .gif image in JSP file using Mozilla browser

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Af:commandImageLink not processing the aboulite path for displaying image

All,
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Where DOMAIN_HOME=D:\JUPITER_CORONA\system11.1.1.3.37.56.60\DefaultDomain\inventory
I would process an image absolute path in the af:commandImageLink tag as follows,
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regards,
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I was not able to get what you want very well, the situation is a little bit un-usual,
but for solution I suggest the below way.
write a servlet/JSP that return the image (it is like copying the file, read the image from absolute path and send it to the OUTPUTSTREAM of the response aslo remember the MIME and the write filter for the jsp/servlet that end with .jpg or any extension for the image.)
then in the jsf page write the below code.
<af:commandImageLink icon="/jspOrservlerpath/servlet/filename.jpg" text"equipment" shotdesc="icon" />
your servlet (get the filename.jpg and then find the file and return it)
this solution is very common for cases that the file is not available physically such as when you want to read it from another place(your case) or database.
I hope this help you.
I can send you the source for the servlet/jsp if you want.

ADF BC:Displaying Image On JSP page

Hai All
I'm using ADF BC and JDev 10.1.3.
I want to show an image on my jsp page from database.
For this I have written an servlet with the following code
response.setContentType("image/gif");
OutputStream os = response.getOutputStream();
String amDef = "package.AppModuleName";
String config = "Configuration Name";
ApplicationModule am = Configuration.createRootApplicationModule(amDef, config);
ViewObjectImpl vo =
(ViewObjectImpl)am.findViewObject("ViewObject"); // get view object (the same as used in the table)
System.out.println("vo:" + vo);
vo.executeQuery();
Row row = vo.first();
BlobDomain image = (BlobDomain)row.getAttribute("field");
//System.out.println("image:" + image);
InputStream is = image.getInputStream();
// copy blob to output
byte[] buffer = new byte[10 * 1024];
int nread;
while ((nread = is.read(buffer)) != -1)
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os.close();
Configuration.releaseRootApplicationModule(am, false);
This servlet working perfectly.The image is displayed on the page while running
the servlet alone.
My problem is the image is not got displyed on the jsp page
I tried following code to call the servlet
<af:objectImage source="ImageServlet"/>
<img src="ImageServlet" width="140px" height="50px" align="right">
Where ImageServlet is the url-pattern in the web.xml for the servlet
Both method are not working
Any body please help me.......
what I'm missing..............
Is there any other way to display an image on JSP page using backing bean
method.
Thanks
Ans

HI,
See: http://kuba.zilp.pl/?id=241
Kuba

Problem in displaying images stored in Blob variable

Hi all,
I have a requirement where i need to retrieve the image stored in Blob variable in DB and display the image in JSP page.
I have written the below code to achieve this, it works fine
In JSP, I am calling a action in the <img tag
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inputStream.read(theBytes);
response.setContentType("image/jpg");
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Can you please tell me what is wrong in my approach/code
Is there any better approach to display image that is store in Blob variable ?
Please help on this.
Thanks in advance.

You need at least to set the filename in the content disposition header.

Alternative method for displaying images blobs stored in DB

I am trying to use an Application Process as a means to displaying images stored in BLOB columns in my table. And it works except for one problem. The code for my on-demand Application Process is below (the name of the application process is OUTPUT_IMAGE):
DECLARE
l_mime VARCHAR2(255);
l_length NUMBER;
l_file_name VARCHAR2(2000);
lob_loc BLOB;
BEGIN
SELECT photo_mime_type,
photo_blob,
photo_filename,
dbms_lob.getlength(photo_blob)
INTO l_mime,
lob_loc,
l_file_name,
l_length
FROM persons
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owa_util.mime_header(nvl(l_mime,'application/octet'), FALSE);
htp.p('Content-length: ' || l_length);
htp.p('Content-Disposition: filename="' || l_file_name || '"');
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wpg_docload.download_file(lob_loc);
END;
I can then create HTML like:
<img src="f?p=[my_app_id]:0:[the_session_id]:APPLICATION_PROCESS=OUTPUT_IMAGE">
Which works nicely.
The question/problem is: How can I pass the ID of the record (whose BLOB I want to display) to the Application Process? (In the code above you'll see the value of 260 is currently hard coded). I thought about tacking on something like "&my_id=xxx' to the end of the URL but doing so prevents the Application Process from even running. 
All comments/suggestions much appreciated, 
Thanks,
 
Andy

Andrew,
The URL for an Application Process uses the standard f?p syntax.
Try passing your value like this:
< img src="f?p=[my_app_id]:0:[the_session_id]:APPLICATION_PROCESS=OUTPUT_IMAGE:NO::MY_ID:[the value to send]"> You would need to have an item called MY_ID.
Your query could then refer to it as
WHERE id = :MY_ID;
Doug

Displaying Image in JSP page

Hi there.. I have a problem with displaying an image from table with blob data type.
Here's what have I done:
I have this page to display an image from requestScope.test (I've set this value in data action).
But the problem is, the image is only displayed once. Seems that after it read the eof of stream, It'll not move the pointer to the beginning. The image will show up again if view object retrieve new data from the database.
Here's my code:
------------------------------------------------------begin of code----------------------------------------------------
<%@ page import="java.io.InputStream,oracle.jbo.client.Configuration,oracle.jbo.ApplicationModule"%>
<%
response.setContentType("image/jpeg");
response.addHeader("Content-Disposition","filename=img.jpg");
InputStream sImage = ((oracle.jbo.domain.BlobDomain)request.getAttribute("test")).getInputStream();
byte[] bytearray = new byte[4096];
int size = 0;
while((size=sImage.read(bytearray))!= -1 ){
response.getOutputStream().write(bytearray,0,size);
sImage.close();
%>
------------------------------------------------------end of code----------------------------------------------------
Any suggestion?
Thx,
Andre

Sorry, I've just read the java doc for oracle.jbo.domain.BlobDomain and find method toByteArray(), and this method can solve my problem. Here's the new code:
----------------------------------------begin of code-----------------------------------------------
<%
response.setContentType("image/jpeg");
response.addHeader("Content-Disposition","filename=img.jpg");
byte[] bytearray = ((oracle.jbo.domain.BlobDomain)request.getAttribute("test")).toByteArray();
response.getOutputStream().write(bytearray, 0, bytearray.length);
%>
----------------------------------------begin of code-----------------------------------------------
But I still intereset with the first solution, why it always find eof after it displayed. I've already closed the stream.
Thx,
Andre

Problem for displaying image in jsp

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