Oh yeah, that might be helpful: Here is the exception message: WicketMessage: Unable to find component with id 'heading' in [MarkupContainer [Component id = _extend3]]. This means that you declared wicket:id=heading in your markup, but that you either did not add the component to your page at all, or that the hierarchy does not match. [markup = file:/C:/workspace/MyApp/context/WEB-INF/classes/myapp/dbtest/ListTabelle.html <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <link rel="stylesheet" type="text/css" href="css/postage.css"> <title>Datenbank-Designer</title>
</head> <body> <div wicket:id="feedback"></div> <p>Willkommen beim DB-Designer 1.0! (c) by dg</p> <p><b>Was möchten Sie tun:</b></p> <form wicket:id="fa"> <select wicket:id="ddc1"> <option></option> </select> <input type="submit" value="Ok"/> </form> <br> <form wicket:id="fb"> <div>Die in der Datenbank vorhandenen Tabellen:</div> <select wicket:id="tables"> <option></option> </select> <input type="submit" value="Optionen anzeigen"/> </form> <br> <form wicket:id="fc"> <select wicket:id="options"> <option></option> </select> <input type="submit" value="Ok"/> </form> <wicket:child><wicket:extend> <div wicket:id="infoText"></div> <table> <tr> <th wicket:id="heading"> </th> </tr> <tr wicket:id="row"> <td wicket:id="cell"> </td> </tr> </table> </wicket:extend></wicket:child> </body> </html>, index = 40, current = '<th wicket:id="heading">' (line 6, column 7)] Root cause: org.apache.wicket.markup.MarkupException: Unable to find component with id 'heading' in [MarkupContainer [Component id = _extend3]]. This means that you declared wicket:id=heading in your markup, but that you either did not add the component to your page at all, or that the hierarchy does not match. [markup = file:/C:/workspace/MyApp/context/WEB-INF/classes/myapp/dbtest/ListTabelle.html <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <link rel="stylesheet" type="text/css" href="css/postage.css"> <title>Datenbank-Designer</title> </head> <body> <div wicket:id="feedback"></div> <p>Willkommen beim DB-Designer 1.0! (c) by dg</p> <p><b>Was möchten Sie tun:</b></p> <form wicket:id="fa"> <select wicket:id="ddc1"> <option></option> </select> <input type="submit" value="Ok"/> </form> <br> <form wicket:id="fb"> <div>Die in der Datenbank vorhandenen Tabellen:</div> <select wicket:id="tables"> <option></option> </select> <input type="submit" value="Optionen anzeigen"/> </form> <br> <form wicket:id="fc"> <select wicket:id="options"> <option></option> </select> <input type="submit" value="Ok"/> </form> <wicket:child><wicket:extend> <div wicket:id="infoText"></div> <table> <tr> <th wicket:id="heading"> </th> </tr> <tr wicket:id="row"> <td wicket:id="cell"> </td> </tr> </table> </wicket:extend></wicket:child> </body> </html>, index = 40, current = '<th wicket:id="heading">' (line 6, column 7)] at org.apache.wicket.markup.MarkupStream.throwMarkupException(MarkupStream.java:464) at org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1344) at org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1476) at org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1401) at org.apache.wicket.Component.renderComponent(Component.java:2480) at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1411) at org.apache.wicket.Component.render(Component.java:2317) at org.apache.wicket.MarkupContainer.autoAdd(MarkupContainer.java:223) at org.apache.wicket.markup.resolver.MarkupInheritanceResolver.resolve(MarkupInheritanceResolver.java:66) at org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1324) at org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1476) at org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1401) at org.apache.wicket.Component.renderComponent(Component.java:2480) at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1411) at org.apache.wicket.Component.render(Component.java:2317) at org.apache.wicket.MarkupContainer.autoAdd(MarkupContainer.java:223) at org.apache.wicket.markup.resolver.MarkupInheritanceResolver.resolve(MarkupInheritanceResolver.java:73) at org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1324) at org.apache.wicket.MarkupContainer.renderAll(MarkupContainer.java:1427) at org.apache.wicket.Page.onRender(Page.java:1470) at org.apache.wicket.Component.render(Component.java:2317) at org.apache.wicket.Page.renderPage(Page.java:904) at org.apache.wicket.protocol.http.WebRequestCycle.redirectTo(WebRequestCycle.java:163) at org.apache.wicket.request.target.component.PageRequestTarget.respond(PageRequestTarget.java:58) at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:104) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1181) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1252) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1353) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:355) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:200) 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:619) -----Ursprüngliche Nachricht----- Von: Martin Makundi [mailto:martin.maku...@koodaripalvelut.com] Gesendet: Montag, 25. Mai 2009 11:22 An: users@wicket.apache.org Betreff: Re: MarkupException, BUT WHY??? What's the exception message? 2009/5/25 Dorothée Giernoth <dorothee.giern...@kds-kg.de>: > Hey all, > > I am quite new to Wicket, but I am trying some stuff to see how it works. > Right now I am trying my best to build a little database-designer, but I get > a MarkupException, but I dunno why. I am using MarkupInheritance ... > My Code doesn't look very tidy, but I am still brave enough to post it. Hope > someone sees where it fails. Thank you in advance! > > My first class-file, where it calls the second class-file, that includes the > code, that will be loaded into the original html-file: > ------------------------------------------------------------------------- > // DBDesigner.java: > protected void onSubmit(){ > String o = ( String ) drop3.getObject(); > if( o.equals( "Datensaetze nur anzeigen" )){ > try{ > String tab = tableList.get( tabelle ); > /* RESPONSEPAGE CALLED HERE!!!!*/ > ListTabelle listing = new ListTabelle( tab ); > setResponsePage( listing ); > } > catch(Exception e){ > System.out.println( "TIENES UNA PROBLEMA: " + e ); > } > } > } > -------------------------------------------------------------------------- > > > It calls ListTabelle.java where I load data from a database according to the > choice of the user (the user chooses a table to collect to data from). I > build up a RepeatingView that holds the data. > I tried to just print the data in a label for shit and giggles and it worked, > but something doesn't work with my RepeatingView (or with all the other > Components I tried ...). I am missing something and tried for days now to > figure out where my brain fails ... I just can't see it. > Here is the code from ListTabelle.java (at least, what could be interesting): > -------------------------------------------------------------------------- > package ...; > import ...; > > > public class ListTabelle extends DBDesigner implements Serializable{ > > // VARIABLES ... > > /** > * Constructor > * @param conMe > * @param tab > */ > public ListTabelle( String tab ){ > this.tab = tab; > > try { > > /* > * CONNECTION TO DB: > */ > ... > > try{ > showData(); > > int sizeH = tabellenHeader.size(); > int sizeC = list.size(); > > RepeatingView heading = new RepeatingView( "heading" ); > for( int i = 0; i <= sizeH; i++ ){ > heading.add( new Label( heading.newChildId(), > tabellenHeader.get( > i ) ) ); > } > add( heading ); > RepeatingView row = new RepeatingView( "row" ); > add( row ); > > for( int j = 0; j <= sizeC; j++ ){ > WebMarkupContainer r = new WebMarkupContainer( > > row.newChildId() ); > RepeatingView cell = new RepeatingView( "cell" ); > row.add(r); > r.add(cell); > cell.add( new Label( cell.newChildId(), > list.get( j ) ) ) > for( int d = 0; d <= sizeC; d++ ){ > cell.add( new Label( cell.newChildId(), > list.get( j ) ) ); > } > } > > > > /* > * close the database > */ > conMe.close(); > } > catch( Exception e ){ > e.printStackTrace(); > } > } > > > /** > * Bastelt die Ausgabe-Liste aus der Datenbank zusammen. > */ > private void showData(){ > > add( new Label( "infoText", "Ihre Daten werden angezeigt!" ) ); > > list = new ArrayList<String>(); > tabellenHeader = new ArrayList<String>(); > try { > Statement cs = conMe.createStatement(); > // Tabellen-Header abfragen: > ResultSet header = cs.executeQuery( > "SHOW COLUMNS FROM " + tab + > ";" ); > anzahlSpalten = 0; > while( header.next() ){ > anzahlSpalten++; > tabellenHeader.add( inhalt ); > list.add( inhalt ); > } > > // Tabellen-Inhalt: > ResultSet tcontent = cs.executeQuery( > "SELECT * FROM " + tab + ";" ); > // tcontent.next() - ist immer die neue Zeile, die dann > // spaltenweise ausgelesen werden kann. > while( tcontent.next() ){ > for( int i = 0; i < anzahlSpalten; i++ ){ > list.add( tcontent.getString( > > tabellenHeader.get(i))); > } > } > > System.out.println("Die ausgelesenen Daten: \n" + test); > > > } > catch( SQLException e ){ > System.out.println( "Fehler SQL-Befehl: " + e ); > } > } > } > -------------------------------------------------------------------------- > > > I put <wicket:child></wicket:child> into my DBDesigner.html-File and my > ListTabelle.html looks like this: > -------------------------------------------------------------------------- > <wicket:extend> > <div wicket:id="infoText"></div> > <table> > <tr> > <th wicket:id="heading"> > </th> > </tr> > <tr wicket:id="row"> > <td wicket:id="cell"> > </td> > </tr> > </table> > </wicket:extend> > -------------------------------------------------------------------------- > > I know this is a lot to read right now, but please bear with me ... I am just > a baby-wicket-nerd and I am really desperate! I bet it is just a simple > little thing, like - I dunno - a quotation mark ... > I hope someone can help me. > Thnx in advance again :) > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
