问题
I'm migrating my project from WebSphere 7 to WebSphere 8 and I'm using JSF 1.2.
I was facing a problem with IBM JSF/html_extended tags and also standard converters, which are mainly JSF 1.2 core components. I'm also updating my Java EE version from 5 to 6 (which might not be the reason). Finally, there is also a component tree given.
Below is my stack trace:
javax.faces.component.UpdateModelException: org.apache.jasper.el.JspELException: /sc40/NewContract.jsp(130,5) '#{pc_NewContract.overrideAsOfDtSQL}' Cannot convert 4/23/12 12:00 AM of type class java.util.Date to class java.sql.Date
at javax.faces.component.UIInput.updateModel(UIInput.java:398)
at javax.faces.component.UIInput.processUpdates(UIInput.java:299)
at javax.faces.component.UIForm.processUpdates(UIForm.java:187)
at javax.faces.component.UIComponentBase.processUpdates(UIComponentBase.java:1258)
at javax.faces.component.UIComponentBase.processUpdates(UIComponentBase.java:1258)
at javax.faces.component.UIViewRoot._processUpdatesDefault(UIViewRoot.java:1321)
at javax.faces.component.UIViewRoot.access$600(UIViewRoot.java:75)
at javax.faces.component.UIViewRoot$UpdateModelPhaseProcessor.process(UIViewRoot.java:1423)
at javax.faces.component.UIViewRoot._process(UIViewRoot.java:1282)
at javax.faces.component.UIViewRoot.processUpdates(UIViewRoot.java:765)
at org.apache.myfaces.lifecycle.UpdateModelValuesExecutor.execute(UpdateModelValuesExecutor.java:34)
at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:171)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:189)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1147)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:722)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:449)
at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1020)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3639)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:950)
at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1659)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:195)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:83)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:816)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1648)
Caused by: org.apache.jasper.el.JspELException: /sc40/NewContract.jsp(130,5) '#{pc_NewContract.overrideAsOfDtSQL}' Cannot convert 4/23/12 12:00 AM of type class java.util.Date to class java.sql.Date
at org.apache.jasper.el.JspValueExpression.setValue(JspValueExpression.java:98)
at javax.faces.component.UIInput.updateModel(UIInput.java:380)
... 35 more
回答1:
'#{pc_NewContract.overrideAsOfDtSQL}' Cannot convert 4/23/12 12:00 AM of type class java.util.Date to class java.sql.Date
You apparently have a
private java.sql.Date overrideAsOfDtSQL;
This is not correct. The java.sql.* types do not belong in the model. Replace it by java.util.Date.
private java.util.Date overrideAsOfDtSQL;
The same answer applies when you're using java.sql.Time.
Note that java.sql.Date and java.sql.Time are subclasses of java.util.Date, that's why it worked when converting from object to string with <f:convertDateTime>. Only converting from string to object won't work because the <f:convertDateTime> always converts to java.util.Date.
回答2:
There is workaround without changing hibernate model. I prefer this way because all changes are in jsf layer.
You can use binding in composite component. Next code is example with rich:calendar (which uses java.util.Date)
... <cc:interface componentType="CalendarComponent">
... </cc:interface>
<cc:implementation>
... <rich:calendar value="#{cc.attrs.value}" binding="#{cc.attrs.calendar}" />
...
</cc:implementation>
...
and in CalendarComponent:
import java.util.Date;
import javax.faces.component.FacesComponent;
import javax.faces.component.UINamingContainer;
import javax.faces.context.FacesContext;
import org.richfaces.component.UICalendar;
@FacesComponent(value = "CalendarComponent")
public class CalendarComponent extends UINamingContainer {
@Override
public void processUpdates(FacesContext context) {
Object o = calendar.getValue();
if (o instanceof Date) {
Date d = (Date) o;
//this ensures type changing
calendar.setValue(new java.sql.Date(d.getTime()));
}
super.processUpdates(context);
}
private UICalendar calendar;
public UICalendar getCalendar() {
return calendar;
}
public void setCalendar(UICalendar calendar) {
this.calendar = calendar;
}
}
来源：https://stackoverflow.com/questions/10286724/cannot-convert-4-23-12-1200-am-of-type-class-java-util-date-to-class-java-sql-d