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trouble showing up a gif image in included jsp

 
boyet silverio
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Inside a jsp, i use <jsp:include > to show a gif image contained in a jsp. The <img> is coded in the included jsp is similar to the following:
<img src="http://localhost:8080/orgapp/view/picture.gif"/>
At first the image appears when run, but when i edit this portion, say change to another gif, and re-run it the image no longer shows. Even if i just re-save the included jsp and don't change anything, re-running will still not show the image.
the solution i discovered is to shutdown the browser and the current tomcat version i use (4.0.2), and then run the web app in another version (4.1.12 already installed) then the image would appear.
However if i again edit the included jsp, or simply re-save, the image will again not appear. I have to re-run again in the other (4.0.2) version to make it work.
This problem also happens if i start with the other version (4.1.12).
Has anyone encountered this and found a better solution, or better, how to prevent this from happening.
thanks in advance.
 
Isaias C. Barroso
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Hy,
In you jsp, insert the follow code to prevent the cache.
response.setHeader("Pragma", "No-cache");
Bye.
 
David O'Meara
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I tend to go a bit further and use this no-cache code:

Dave
 
boyet silverio
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yes. many thanks Isaias and Dave. that also sowmehow now made my half baked understanding of caching well done.
 
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