I don't know how to fix it, but i would never use JSP for this. I
would suggest you use FreeMarker or Velocity which will be very easy
to get working and won't break across different containers/versions.
For example, for FreeMarker (which will be in the classpath already),
I use this:
public static void process(ServletContext context, String template,
Map<String, Object> values, Writer writer) throws IOException,
TemplateException {
Configuration cfg = new Configuration();
cfg.setDirectoryForTemplateLoading(new
File(context.getRealPath("/templates")));
cfg.setObjectWrapper(new DefaultObjectWrapper());
BeansWrapper wrapper = BeansWrapper.getDefaultInstance();
TemplateHashModel staticModels = wrapper.getStaticModels();
Template temp = cfg.getTemplate(template);
temp.process(values, writer);
writer.flush();
}
//also JSP has not way to deal with empty spaces and such
musachy
On Thu, Feb 12, 2009 at 1:49 PM, Ignacio de Córdoba <icord...@skios.es> wrote:
>
> Hi there,
> I had a working solution that was fine for struts1 and doesn't work with
> struts2.
> The scenario is evey time the application needs to send a mail from an
> action (for example, when a user signs up, the system sends him a welcome
> mail)
>
> My solution got the JSP the following way:
>
> public String getResourceAsString(String path) throws ServletException,
> IOException
> {
> HttpServletRequest request =
> org.apache.struts2.ServletActionContext.getRequest();
> HttpServletResponse response =
> ServletActionContext.getResponse();
> try
> {
> ByteArrayOutputStream out = new
> ByteArrayOutputStream();
> RequestDispatcher dispatcher =
> request.getRequestDispatcher(path);
> RedirectingServletResponse dummyResponse = new
> RedirectingServletResponse(response, out);
> dispatcher.include(request, dummyResponse);
> return out.toString();
> } catch (NullPointerException e)
> {
> return "<p>No such template: " + path + "</p>";
> }
> }
>
> (RedirectingServletResponse class just extends HttpServletResponseWrapper
> and captures output to a ByteArrayOutputStream)
>
>
> The JSP needs a small scriptlet at its end:
> <% out.flush(); %>
>
> Without it, the mail is sent blank as the JSP is not rendered to HTML/text
> as the request has not ended (I use the current thread request because: 1) I
> don't know how to create a brand new request/response 2) This way I can use
> all request parameters, attributes... in the mail sent and so not use just
> plain HTML but real JSP.
>
> The problem now is that struts2 shows the following exception:
>
> java.io.IOException: Stream closed
>
>
> org.apache.jasper.runtime.JspWriterImpl.ensureOpen(JspWriterImpl.java:204)
>
> org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:115)
> org.apache.jasper.runtime.JspWriterImpl.flush(JspWriterImpl.java:173)
>
> org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:956)
>
> org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:609)
>
> org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:123)
>
> org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
>
> com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:361)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:265)
>
> com.servengine.struts2.InjectEJBInterceptor.intercept(InjectEJBInterceptor.java:89)
>
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
>
> org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
>
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468)
>
> org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
>
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206
>
> Any ideas on this... or better... any directions on how can I instanciate a
> "fake" response not based on current struts2 Action ServletResponse object
> (and so flush() or close() will not affect it).
>
> Thanks,
> Ignacio
> --
> View this message in context:
> http://www.nabble.com/How-to-render-a-JSP-Struts2-action-to-send-it-%28mail%2C-...%29-tp21982445p21982445.html
> Sent from the Struts - User mailing list archive at Nabble.com.
>
>
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--
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