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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