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Re: How to get HTML source code from a wicket page
by Jeremy Thomerson-2
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I hope someone can give me a hand. I'm trying to do something similar, and seemingly stumped.
I have a form that I want to have the user fill out, and then I just want to email the completed form to someone on our team. So, I created subclasses of form components that can be switched from "edit" to "view" mode, and that works great. So, I submit the form, and swap them out to "view" mode so that it is the exact same form, except instead of text fields and the like, I then have labels that display the input, in an un-editable way.
Now, the problem: In the onSubmit() of my Button, I switch the fields over, and then I would like to render the page to a String and email it, and then render the page for the user.
I've tried the methods below, and both are failing - can someone please help.
First, I tried JBQ's method, slightly modified since I'm not in a request target. Maybe that's the problem. Maybe I need to specifically mount this page to a request strategy as he does in the example. But, I'd rather be able to accomplish this in the form itself.
final StringResponse emailResponse = new StringResponse();
final WebResponse originalResponse = (WebResponse)RequestCycle.get().getResponse();
RequestCycle.get ().setResponse(emailResponse);
RequestCycle.get().getRequestTarget().respond(RequestCycle.get());
// Here send the email instead of dumping it to stdout!
System.out.println(emailResponse.toString());
RequestCycle.get().setResponse(originalResponse);
RequestCycle.get().setRequestTarget(new BookmarkablePageRequestTarget(Home.class));
I get this error (BTW - I'm on 1.2.6 with this app until we have an RC release):
Caused by: java.lang.ClassCastException: wicket.response.StringResponse
at wicket.protocol.http.WebRequestCycle.getWebResponse(WebRequestCycle.java:110)
at wicket.markup.html.WebPage.configureResponse (WebPage.java:249)
at wicket.markup.html.pages.ExceptionErrorPage.configureResponse(ExceptionErrorPage.java:106)
at wicket.Page.onRender(Page.java:854)
at wicket.Component.render(Component.java:1526)
at wicket.Page.renderPage(Page.java:408)
at wicket.request.target.component.PageRequestTarget.respond(PageRequestTarget.java:67)
at wicket.request.compound.DefaultResponseStrategy.respond(DefaultResponseStrategy.java :49)
at wicket.request.compound.AbstractCompoundRequestCycleProcessor.respond(AbstractCompoundRequestCycleProcessor.java:66)
at wicket.RequestCycle.respond(RequestCycle.java:950)
at wicket.RequestCycle.step (RequestCycle.java:1025)
I also tried using WicketTester in my onSubmit, and it failed:
WicketTester tester = new WicketTester();
tester.startPage(AdvertiseOnTHF.this);
String email = tester.getServletResponse().getDocument();
// Here send the email instead of dumping it to stdout!
System.out.println("EMAIL: " + email);
info("Your request has been sent.");
I can't do this because a lot of things in my app depend on getSession() being my sub-class of WebSession, and getApp() being my sub-class of WebApp.
So, what to do? Any suggestions? Should I just mount this form specifically to a request strategy and do it more like JBQ's example?
Thank you!
Jeremy Thomerson
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I have a form that I want to have the user fill out, and then I just want to email the completed form to someone on our team. So, I created subclasses of form components that can be switched from "edit" to "view" mode, and that works great. So, I submit the form, and swap them out to "view" mode so that it is the exact same form, except instead of text fields and the like, I then have labels that display the input, in an un-editable way.
Now, the problem: In the onSubmit() of my Button, I switch the fields over, and then I would like to render the page to a String and email it, and then render the page for the user.
I've tried the methods below, and both are failing - can someone please help.
First, I tried JBQ's method, slightly modified since I'm not in a request target. Maybe that's the problem. Maybe I need to specifically mount this page to a request strategy as he does in the example. But, I'd rather be able to accomplish this in the form itself.
final StringResponse emailResponse = new StringResponse();
final WebResponse originalResponse = (WebResponse)RequestCycle.get().getResponse();
RequestCycle.get ().setResponse(emailResponse);
RequestCycle.get().getRequestTarget().respond(RequestCycle.get());
// Here send the email instead of dumping it to stdout!
System.out.println(emailResponse.toString());
RequestCycle.get().setResponse(originalResponse);
RequestCycle.get().setRequestTarget(new BookmarkablePageRequestTarget(Home.class));
I get this error (BTW - I'm on 1.2.6 with this app until we have an RC release):
Caused by: java.lang.ClassCastException: wicket.response.StringResponse
at wicket.protocol.http.WebRequestCycle.getWebResponse(WebRequestCycle.java:110)
at wicket.markup.html.WebPage.configureResponse (WebPage.java:249)
at wicket.markup.html.pages.ExceptionErrorPage.configureResponse(ExceptionErrorPage.java:106)
at wicket.Page.onRender(Page.java:854)
at wicket.Component.render(Component.java:1526)
at wicket.Page.renderPage(Page.java:408)
at wicket.request.target.component.PageRequestTarget.respond(PageRequestTarget.java:67)
at wicket.request.compound.DefaultResponseStrategy.respond(DefaultResponseStrategy.java :49)
at wicket.request.compound.AbstractCompoundRequestCycleProcessor.respond(AbstractCompoundRequestCycleProcessor.java:66)
at wicket.RequestCycle.respond(RequestCycle.java:950)
at wicket.RequestCycle.step (RequestCycle.java:1025)
I also tried using WicketTester in my onSubmit, and it failed:
WicketTester tester = new WicketTester();
tester.startPage(AdvertiseOnTHF.this);
String email = tester.getServletResponse().getDocument();
// Here send the email instead of dumping it to stdout!
System.out.println("EMAIL: " + email);
info("Your request has been sent.");
I can't do this because a lot of things in my app depend on getSession() being my sub-class of WebSession, and getApp() being my sub-class of WebApp.
So, what to do? Any suggestions? Should I just mount this form specifically to a request strategy and do it more like JBQ's example?
Thank you!
Jeremy Thomerson
On 6/24/07, Jean-Baptiste Quenot <jbq@...> wrote:
* John Krasnay:
> OK, so WicketTester is the way to go. JBQ's response implied that there
> was a more direct way to do it, but I'll give WicketTester a try.
Yes there is a more direct way. I'm sorry I made an error, I
meant StringResponse, not StringRequestTarget. I spent a few
minutes writing the example, as this is a recurring question, here
it is:
http://svn.apache.org/viewvc/incubator/wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/staticpages/Application.java?revision=550248&view=markup
Look at the very bottom, where I'm using a custom
BookmarkablePageRequestTarget:
new BookmarkablePageRequestTarget(Page.class, params) {
/**
* @see org.apache.wicket.request.target.component.BookmarkablePageRequestTarget#respond(org.apache.wicket.RequestCycle )
*/
@Override
public void respond(RequestCycle requestCycle)
{
if (requestParams.getString("email") != null) {
final StringResponse emailResponse = new StringResponse();
final WebResponse originalResponse = (WebResponse)RequestCycle.get().getResponse();
RequestCycle.get().setResponse(emailResponse);
super.respond (requestCycle);
// Here send the email instead of dumping it to stdout!
System.out.println(emailResponse.toString());
RequestCycle.get().setResponse(originalResponse);
RequestCycle.get().setRequestTarget(new BookmarkablePageRequestTarget(Sent.class));
} else {
super.respond(requestCycle);
}
}
};
The example can be found in latest wicket examples in the
"staticpages" demo.
--
Jean-Baptiste Quenot
aka John Banana Qwerty
http://caraldi.com/jbq/
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Wicket-user@...
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-------------------------------------------------------------------------
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Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Wicket-user mailing list
Wicket-user@...
https://lists.sourceforge.net/lists/listinfo/wicket-user
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