pass id， and then get that object from that id
2008/9/27 Igor Vaynberg <[EMAIL PROTECTED]>
> pageparameters is used for passing parameters on the url, so it only
> supports strings or whatever you can convert to a string.
>
> -igor
>
> On Fri, Sep 26, 2008 at 9:35 PM, fish3934 <[EMAIL PROTECTED]> wrote:
> > Hi All,
> > I wanted to pass an object from one page to another page,so
> > I set an object into a parameter:
> > PageParameters para=new PageParameters();
> > para.put("result",resultList);//resultList is a List contains some
> pojo.
> > //jump to another page
> > setResponsePage(DeviceEnquiry.class,para);
> >
> > Then at DeviceEnquiry.java ,I want to get resultList:
> > class DeviceEnquiry extends WebPage
> > {
> > public DeviceEnquiry (PageParameters param)
> > {
> > List list = (List)param.get("result");
> > //....
> > }
> > }
> >
> > But I got an exception:
> >
> >
> > WicketMessage: Can't instantiate page using constructor public
> com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters)
> and argument result = "[EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED]"
> >
> > Root cause:
> >
> > java.lang.ClassCastException: [Ljava.lang.String;
> > at
> com.hk.xportal.xseries.enquiry.DeviceEnquiry.<init>(DeviceEnquiry.java:16)
> > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> > at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
> > at
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:147)
> > at
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
> > at
> org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
> > at
> org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283)
> > at
> org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:210)
> > at
> org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:91)
> > at
> org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1171)
> > at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
> > at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349)
> > at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
> > at
> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
> > at
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)
> > at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
> > at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
> > at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
> > at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
> > at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
> > at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
> > at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
> > at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
> > at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
> > at
> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
> > at
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
> > at
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
> > at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
> > at java.lang.Thread.run(Thread.java:595)
> >
> > Complete stack:
> >
> > org.apache.wicket.WicketRuntimeException: Can't instantiate page using
> constructor public
> com.hk.xportal.xseries.enquiry.DeviceEnquiry(org.apache.wicket.PageParameters)
> and argument result = "[EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED],
> [EMAIL PROTECTED]"
> > at
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168)
> > at
> org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:88)
> > at
> org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:268)
> > at
> org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283)
> > at
> org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:210)
> > at
> org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:91)
> > at
> org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1171)
> > at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
> > at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349)
> > at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
> > at
> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
> >
> > //....
> >
> >
> >
>
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