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
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