查看:
<p:calendar id="dateRequisition" widgetVar="calwidget" pattern="yyyy-MM-dd HH:mm" value="#{examrequisitionsController.selected.dateRequisition}"
title="#{bundle.CreateExamrequisitionsTitle_dateRequisition}" required="true" requiredMessage="#{bundle.CreateExamrequisitionsRequiredMessage_dateRequisition}"
converterMessage="Invalid Birth Date." effect="slide" showOn="both" navigator="true" yearRange=":+1"
minHour="06" maxHour="18" stepMinute="10" disabledWeekends="true" readonlyInput="true">
<f:validator validatorId="dateValidator" />
</p:calendar>
验证
public void validate(FacesContext context, UIComponent component,
Object value) throws ValidatorException {
String msg = "";
if (value == null) {
msg = "The Date field is required";
} else {
Date dateRequisition = null;
try {
dateRequisition = new SimpleDateFormat("yyyy-MM-dd HH:mm", Locale.ENGLISH).parse(value.toString());
} catch (ParseException ex) {
Logger.getLogger(DateValidator.class.getName()).log(Level.SEVERE, null, ex);
}
if (!Persistence.createEntityManagerFactory("SystemCardiologyReportsPU").createEntityManager().createNamedQuery("Examrequisitions.findByDateRequisition")
.setParameter("dateRequisition", dateRequisition).getResultList().isEmpty()) {
msg = "The Date of requisition is already defined.";
}
}
if (!"".equals(msg)) {
JsfUtil.validatorMessage(msg);
}
}
DB中的列:
dateRequisition datetime NOT NULL
。
我进行了调试,验证器类中收到的值采用以下格式:(java.util.Date) Sun Nov 15 06:00:00 GMT-03:00 2015
。
所以,我想将其格式化为yyyy-MM-dd HH:mm
并与我的数据库中的所有日期进行比较,以测试它是否已包含在我的数据库中。
顺便说一下,它总是捕捉到ParseException。
答案 0 :(得分:0)
我找到了解决方案Date format parse exception - "EEE MMM dd HH:mm:ss Z yyyy"
dateRequisition = new SimpleDateFormat("EEE MMM dd HH:mm:ss Z yyyy", Locale.ENGLISH).parse(value.toString());