无法将类型为java.util.Date的4/23/12 12:00 AM转换为类java.sql.Date

Question

我正在将我的项目从WebSphere 7迁移到WebSphere 8，而我正在使用JSF 1.2。

我遇到了IBM JSF / html_extended标签以及标准转换器的问题，这些转换器主要是JSF 1.2核心组件。我也将我的Java EE版本从5更新到6（这可能不是原因）。最后，还给出了一个组件树。

下面是我的堆栈跟踪：

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

Answer 1

'＃{pc_NewContract.overrideAsOfDtSQL}'无法将类型为java.util.Date的4/23/12 12:00 AM转换为类java.sql.Date

你显然有一个

private java.sql.Date overrideAsOfDtSQL;

这是不正确的。 java.sql.*类型不属于模型。用java.util.Date替换它。

private java.util.Date overrideAsOfDtSQL;

当你使用java.sql.Time时，同样的答案也适用。

请注意，java.sql.Date和java.sql.Time是java.util.Date的子类，这就是为什么它在使用<f:convertDateTime>从对象转换为字符串时有效。只有从字符串转换为对象才会起作用，因为<f:convertDateTime>总是转换为java.util.Date。

Answer 2

没有改变hibernate模型就有解决方法。我更喜欢这种方式，因为所有更改都在jsf层中。

您可以在复合组件中使用绑定。下一个代码是rich：calendar（使用java.util.Date）的示例

... <cc：interface componentType =“CalendarComponent”>

...... </ cc：interface>

<cc:implementation>

... <rich：calendar value =“＃{cc.attrs.value}”binding =“＃{cc.attrs.calendar}”/>

... </立方厘米：实施>

...

并在CalendarComponent中：

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;
}

}