Dynamic images in a Servlet with WL6.1

Hi,
          I try to create a BufferedImage in a Servlet:
          BufferedImage img = new BufferedImage(320,200,
          BufferedImage.TYPE_INT_RGB);
          I get an UnsatisfiedLinkError to the log. The servlet works fine on
          Tomcat.
          The platform is Solaris 8 with Weblogic 6.1. The libawt.so is included
          in the CLASSPATH. The creation of the image works fine, if I run it
          from command line with the same JRE.
          regards, EK
          the log:
          <7.10.2002 16:04:57 EEST> <Error> <HTTP>
          <[WebAppServletContext(7518429,testwl61
          ,/testwl61)] Servlet failed with Exception
          java.lang.UnsatisfiedLinkError: exception occurred in JNI_OnLoad
          at java.lang.ClassLoader$NativeLibrary.load(Native Method)
          at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1382)
          at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1298)
          at java.lang.Runtime.loadLibrary0(Runtime.java:749)
          at java.lang.System.loadLibrary(System.java:820)
          at sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:53)
          at java.security.AccessController.doPrivileged(Native Method)
          at java.awt.image.ColorModel.loadLibraries(ColorModel.java:155)
          at java.awt.image.ColorModel.<clinit>(ColorModel.java:163)
          at java.awt.image.BufferedImage.<clinit>(BufferedImage.java:203)
          at com.testwl61.DrawServlet.doGet(DrawServlet.java:34)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
          pl.java:265)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
          pl.java:200)
          at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe
          rvletContext.java:2495)
          at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm
          pl.java:2204)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          >

Hi,
Please post to an asp.net forum....if possible include a link to your website with your question.
this forum is for questions about IEAK and GPO for system administrators of domain networks....
tip... use response.end I/o response flush....
view... the page-source from IE (View-source) or use the Find tool on the IE Developer tool to inspect the scr value of img tags and the base href value (if used)...
the optimal load time for web pages is considered to be 3 seconds...
consider reducing the number and size of images, and external stylesheets and libraries on your web pages. (www.webpagetests.org)
Rob^_^

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PS: My BI version: 10.1.3.4.1
Edited by: oeren on Jun 8, 2011 12:28 AM

Oeren,
I stumbled across this little tidbit buried in the BI Publisher forum: Dynamic Images in rtf
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Follow us on Twitter http://twitter.com/SAPCRNetSup

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Hi Carsten
That was exactly* I was looking for. Maybe I should Google more in German ;-)
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Just like the "Name" (that's positioned outside the group in the document header), I positioned the image above the table representing the group.
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(One more thing...the image size is fixed to the image you use as "dummy". Is there any way to make that more flexible, because now some scaling happens...)???
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Hello Jennie,
Iam not remembering about 8.5. I But, Iam sure that itis possible to display image in 8.5 I have done itm, once.
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d:\images\RAB0001.jpg
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I have read your response 10 times, but I don't really understand it.
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I should be able to include a dynamic image (so every "object" on the report has it's own image).
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I also tried to embed a FO snippet:
<fo:block>
<fo:external-graphic src="url:{'http://www.oracleimg.com/us/assets/oralogo-small.gif'}" />
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Roel

Hi Carsten
That was exactly* I was looking for. Maybe I should Google more in German ;-)
The main problem was that I defined my image outside the first repeating group (that doesn't repeat, it's always just one object) - the first group is followed by 7 more.
Just like the "Name" (that's positioned outside the group in the document header), I positioned the image above the table representing the group.
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After moving the image inside the group....it works great!
(One more thing...the image size is fixed to the image you use as "dummy". Is there any way to make that more flexible, because now some scaling happens...)???
@Trent: That was the way we initially did it, but when the size of the row exceeds 32K...you know what happens.. And even with a small image the 32K limit is hit easily
The way I use it now (very similar to Carsten's description) there is no limit....
Thank you all!
Roel

How can I create a dynamic image button

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I want to fill a region with buttons with image. I will execute a PL/SQL procedure to do this. I have made some tests but the image didn't is shown.
I write in my plsql code:
htp.p('<input type="image" src="#WORKSPACE_IMAGES#image.png" >');
Any help?
I am using Apex 4, EPG, Oracle 11g, Ubuntu environment.
Tks a lot.
Ricardo

There is no "image" type for an INPUT tag
Oh yes there is.
>
I have made some tests but the image didn't is shown.
I write in my plsql code:
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However, the bigger problem likely to arise here is that we don't normally generate <tt>input</tt> elements in APEX in this fashion: we either get APEX to do this for us or we use the <tt>apex_item</tt> API—which doesn't include a method for generating inputs of type <tt>image</tt>. If this region is generated inside the form APEX generates then page submission will fail with a 404 error as the inputs generated through your PL/SQL are not known to APEX. All you can really do in this fashion is attach an <tt>onclick</tt> event handler to submit the page using the <tt>apex.submit</tt> JavaScript API method, either using a Dynamic Action as Tobias suggests, or directly in your code:
htp.p(q'{<input type="image" src="#WORKSPACE_IMAGES#icon-1.png" onclick="apex.submit('foo'); return false;" alt="Foo" />}');Which means it's not a great deal different from using an <tt>img</tt> element, as Andy said. There's also the <tt>button</tt> element, which allows you to construct a clickable button using other elements (as long as you don't have to support IE6):
htp.p(q'{<button type="submit" onclick="apex.submit('bar');"><img src="#WORKSPACE_IMAGES#icon-2.png" alt="Bar" /></button>}');Why have you chosen to try this approach rather using <tt>img</tt> or APEX button templates?
Edited by: fac586 on 16-Jan-2011 18:00
Few problems getting Jive to accept the post...

How to insert a dynamic image from a database

I've recently started using Dreamweaver CC to set up a Dynamic Website (PHP pages with a mySQL database). With perseverance and by downloading the new depreciated Server Behaviors and Bindings Panels I've been more or less successful at accomplishing my tasks. I'm still struggling with getting a image to display from mySQL server data base. In the Pre CC revisions this was easy and well documented. I've downloaded the DMXZone HTML5 Data Bindings extension. I can almost get accomplish my dynamic image task, but the DMXZone HTML5 Data Bindings extension says I must now get the the "unfinished but working on" DMX Zone Database Extension in addition to the HTML5 Data Bindings Extension to select my data source from the database.
I'm thinking about dumping Dreamweaver CC altogether and just installing CS6 until the path gets better paved. Any other ideas? Sample code? Work around? Thanks in advance

KevinatCirris wrote:
I've recently started using Dreamweaver CC to set up a Dynamic Website (PHP pages with a mySQL database). With perseverance and by downloading the new depreciated Server Behaviors and Bindings Panels I've been more or less successful at accomplishing my tasks. I'm still struggling with getting a image to display from mySQL server data base. In the Pre CC revisions this was easy and well documented. I've downloaded the DMXZone HTML5 Data Bindings extension. I can almost get accomplish my dynamic image task, but the DMXZone HTML5 Data Bindings extension says I must now get the the "unfinished but working on" DMX Zone Database Extension in addition to the HTML5 Data Bindings Extension to select my data source from the database.
I'm thinking about dumping Dreamweaver CC altogether and just installing CS6 until the path gets better paved. Any other ideas? Sample code? Work around? Thanks in advance
Really you would do it like any other piece of information in your database.
Store the actual images in a folder on your server and the image file name in the database - myImage.jpg
Then echo it to the page following the convention of your other data which is being echoed onto the page:
<img scr="images/<?php echo $row_rsRecordSetName['images']; ?> alt="" >
['images'] above being the name of the database field in which you stored the image name and $row_rsRecordSetName being the variable created by the recordset (yours will be different)

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