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Posted to user@struts.apache.org by Euphreme Rinfrett <eu...@yahoo.ca> on 2008/03/11 22:59:21 UTC
Re: [Bulk] Re: [struts] "stream" result type
Excellent, this is great and made everything work.
Thank you very much for the quick response.
- Pascal
Dale Newfield wrote:
> Euphreme Rinfrett wrote:
>> I'm trying to use to "stream" result type to get some images to
>> display within a portal.
>
>> <action name="displayExerciceImageAction"
>> class="displayExerciceAction">
>> <result name="success" type="stream">
>> <param name="contentType">${model.imageContentType}</param>
>> <param name="inputName">${model.image}</param>
>> <param
>> name="contentDisposition">filename="${model.name}_img"</param>
>> <param name="bufferSize">${model.image.length}</param>
>> </result>
>> </action>
>
>> image being an array of bytes.
>
> You've got a mixup between "contentLength" and "bufferSize"
> bufferSize is simply the size chunks sent out along the wire
> (something simple like 1024 or 2048), "contentLength" is the size of
> the image you're trying to send. (And if you don't provide it, your
> content will be fetched twice, once to find the size, again to send it.)
> your "contentDisposition" is invalid (as is the example you reference,
> BTW). You want that to read inline;filename="${model.name}_img".
> Lastly, you've got the actual content wrong. "inputName" does not
> accept OGNL, but rather a property name on your action for which there
> should be a getter that returns an InputStream (not an array of bytes,
> and not the same InputStream each time it's called but rather a new
> one each time).
>
> Here's an example from my current app:
>
> <result name="success" type="stream">
> <param name="contentType">${media.mimetype}</param>
> <param name="inputName">mediaFileStream</param>
> <param
> name="contentDisposition">inline;filename="${media.code}.${media.suffix}"</param>
>
> <param name="bufferSize">1024</param>
> <param name="contentLength">${mediaFileLength}</param>
> </result>
>
> -Dale
>
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