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POJSF Seam @RequestParameter File/Image
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copied!<p>i have a Backing Bean in which i read parameter which are not bound to a component. Seam offered that to read get parameter. I used</p> <pre><code>@RequestParameter private String param1; </code></pre> <p>this way he doesn't skip my action method on a validation error, like when i used <param name="param1" value="#{myBean.param1}" /> , because i don't want to render HTML responses but reuse the business logic. Instead i grab the response stream and write the rendered response myself </p> <pre><code>FacesContext ctx = FacesContext.getCurrentInstance(); final HttpServletResponse resp = (HttpServletResponse)ctx.getExternalContext().getResponse(); resp.getOutputStream().write(xml.getBytes()); resp.getOutputStream().flush(); resp.getOutputStream().close(); ctx.responseComplete(); // render response phase done </code></pre> <p>I tried to read the file from the HttpServletRequest inputStream but that was already empty. Is there a way to still get the "file" from JSF. I could use a separate servlet and handle it there, but that would break a little bit how i build the rest of the interface.</p> <p>Thx for any advice.</p> <p>Edit: Just for completeness the code for the input stream</p> <pre><code>final HttpServletRequest request = (HttpServletRequest)ctx.getExternalContext().getRequest(); ServletInputStream stream = request.getInputStream(); int byt = stream.read(); // byt was -1 </code></pre> <p>Edit Edit: Sorry for the long post. Now i made a separate servlet. There i also get an empty input Stream even though Firefug said i transmitted the file. How can that be empty?</p> <pre><code>@Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { boolean isMultipart = ServletFileUpload.isMultipartContent(req); ServletInputStream stream= req.getInputStream(); int test = stream.read(); // test == -1 </code></pre> <p>That servlet code works fine in a separate project, so one of the JSF/Seam servlets in the filter chain has to remove the data. If someone has a hint which one or how to check.</p>

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