我已經嘗試了下面的代碼(我已經遵循一個示例)來測試日曆中選擇的日期。如果日期不存在於我的數據庫中,則應向最終用戶顯示驗證錯誤消息。但是,錯誤不會在<h:message>
中結束,而是記錄到服務器日誌中。如何驗證日曆中的日期
查看:
<p:calendar id="date1" value="#{bean.date1}" showOn="button">
<f:validator validatorId="calendarValidator" />
<f:ajax execute="date1" render="calendarmessage" />
</p:calendar>
<h:message id="calendarmessage" for="date1" />
驗證:
@FacesValidator("calendarValidator")
public class CalendarValidator implements Validator{
@Override
public void validate(FacesContext context, UIComponent component, Object value) {
java.util.Date date2 = (java.util.Date) value;
try {
if (validateDate(date2)) {
throw new ValidatorException(new FacesMessage("A valid date"));
} else {
throw new ValidatorException(new FacesMessage("date dont figure in the database"));
}
} catch(Exception e) {
e.printStackTrace();
}
}
}
服務器日誌:
INFO: date invalide
GRAVE: javax.faces.validator.ValidatorException: date dont figure in the database
at DAOKPI.CalendarValidator.validate(CalendarValidator.java:60)
at javax.faces.component.UIInput.validateValue(UIInput.java:1149)
at javax.faces.component.UIInput.validate(UIInput.java:967)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1233)
at javax.faces.component.UIInput.processValidators(UIInput.java:698)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIForm.processValidators(UIForm.java:253)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1172)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:409)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1
做調試或使用斷點?您的validateDate函數是否會返回true? ........你可以發佈你的代碼嗎? –
@Saher,謝謝你的回覆,我已更新我的帖子 – rym
爲了澄清,你想知道爲什麼沒有消息返回給用戶?與正確的例外似乎被捕獲的事實相反? –