Hello Magallo
You can use a code like this:
*protected* *void* doGet(HttpServletRequest request, HttpServletResponse
response) *throws* ServletException, IOException {
response.setContentType("image/png");
* if*(request.getParameter("id") != *null*) {
* if*(request.getParameter("id").equals("")) {
response.sendError(500, "Bad request | Please provide an existing
...?id=X");
}
* else* {
* int* mapID = Integer.*parseInt*(request.getParameter("id"));
* byte*[] image = *null*;
* try* {
yourClientWrapper wrapper = yourDao.readById((*long*) mapID);
image = wrapper.getYourImage();
}
*catch* (Exception e) {
e.printStackTrace();
}
OutputStream out = response.getOutputStream();
out.write(image);
out.close();
}
}
* else* {
response.sendError(500, "Bad request | Please provide an existing id
with ...?id=X");
}
}
On the client side: You just insert your Servlet-Url as the Image Resource
(src-Attribute) like
http://www.yourfancyurl.com/yourgwtapplication/servlet/imageGetter?id=31)
and that's it. The servlet returns the image to the corresponding id
without saving it to the disk.
I hope that this little explanation helps :)
Best regards
Am Montag, 4. Juni 2012 12:34:14 UTC+2 schrieb Magallo:
> Excuse me Agito M, I'm intereseted in this solution. You said that "Code
> on the client side didn't change from what I earlier posted.". What do you
> mean? How do you call the servlet and how do you process the result and
> create the image client side? Please, could you possibly post some code to
> let me understand this? Thanks.
>
> Il giorno martedì 27 settembre 2011 12:56:12 UTC+2, AgitoM ha scritto:
>>
>> Decided to deal with the 32kb limit in Internet Explorer 8. (Internet
>> Explorer 9 is not a problem).
>> Dealt with the problem by creating a servlet that outputs the byte
>> array as a image.
>> I'm sending the ID of the image, in this case a map, to the servlet
>> using the GET method.
>>
>> This is the code for the doGet operation for my dedicated
>> ImageServlet:
>>
>> protected void doGet(HttpServletRequest request, HttpServletResponse
>> response) throws ServletException, IOException {
>> response.setContentType("image/png");
>>
>> if(request.getParameter("MapID") != null) {
>> int mapID =
>> Integer.parseInt(request.getParameter("MapID"));
>>
>> byte[] image = null;
>> try {
>> image = wsStub.getMapImage(mapID);
>> }
>> catch (Exception e) {
>> e.printStackTrace();
>> }
>>
>> OutputStream out = response.getOutputStream();
>> out.write(image);
>> out.close();
>> }
>> }
>>
>> On my RPC Servlet side, I simply return this as the "URL" of the
>> image:
>> ("ImageServlet?MapID=" + mapID)
>>
>> Code on the client side didn't change from what I earlier posted.
>
>
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