L'identifiant non reconnu
slt tt le monde,
en fait, je suis debutant en wicket, et j'essaye de faire une premiere application qui est normalement trés facile : une page d'accueil qui contient un Label,
voici le code de la classe dite HelloPage:
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import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.markup.html.basic.Label;
public class HelloPage extends WebPage {
public HelloPage (){
add(new Label("message","si tu vois ce message ta3 lkhra, trés bien"));
}
} |
voici le code de la page html :
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html xmlns:wicket="http://wicket.apache.org/dtds.data/wicket-xhtml1.3-strict.dtd">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<span wicket:id="message">Message goes here</span>
</body>
</html> |
mé quand j'execute le programme, je vois cette exception:
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| WicketMessage: The component(s) below failed to render. A common problem is that you have added a component in code but forgot to reference it in the markup (thus the component will never be rendered).
1. [Component id = message, page = com.onyme.wicket.pages.HelloPage, path = 0:message.Label, isVisible = true, isVersioned = false]
Root cause:
org.apache.wicket.WicketRuntimeException: The component(s) below failed to render. A common problem is that you have added a component in code but forgot to reference it in the markup (thus the component will never be rendered).
1. [Component id = message, page = com.onyme.wicket.pages.HelloPage, path = 0:message.Label, isVisible = true, isVersioned = false]
at org.apache.wicket.Page.checkRendering(Page.java:1102)
at org.apache.wicket.Page.renderPage(Page.java:899)
at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:231)
at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:103)
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1100)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1169)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1245)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:489)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:636) |
voila,
et merci d'avance.
