primefaces - Primefaces 8 - 验证 primefaces Datepicker mindate 的值时出现 java.lang.UnsupportedOperationException
问题描述
我是 jsf 和 primefaces 的新手。我有一个带有 springboot、jpa 和 jsf-primefaces 的应用程序，这个应用程序可以在 primefaces 版本 7 中正常工作，但是我刚刚升级到版本 8，我遇到了问题。更改日期选择器的值会引发java.lang.UnsupportedOperationException 异常 java.lang.UnsupportedOperationException: null。调试应用程序我看到异常是在 org.primefaces.util.CalendarUtils类convertDate2LocalTime方法中生成的，特别是当它尝试执行以下强制转换 date.toInstant() 时。AtZone (zoneId);
我将总结我认为最相关的内容，我的日期选择器代码如下：
AltaEdicionCandidatos.xhtml
<p:panelGrid columns="4" layout="grid">
<p:outputLabel for="fecha_envio" value="Fecha de envío:" />
<p:datePicker id="fecha_envio" value="#{altaEdicionCandidato.candidato.fechaEnvio}" showIcon="true" locale="es" pattern="dd/MM/yyyy" required="true">
<p:ajax event="dateSelect" listener="#{altaEdicionCandidato.onFechaEnvioChange}" update="fecha_feedback" />
</p:datePicker>
<p:outputLabel for="fecha_feedback" value="Fecha de Feedback de solicitante:" />
<p:datePicker id="fecha_feedback" value="#{altaEdicionCandidato.candidato.fechaFeedbackSolicitante}" showIcon="true" locale="es" mindate="#{altaEdicionCandidato.fecFeedBackMinDate}" pattern="dd/MM/yyyy" required="#{altaEdicionCandidato.reqfechaFeedback}">
<p:ajax event="dateSelect" listener="#{altaEdicionCandidato.onFechaFeedBackChange}" update="fecha_entrevista_ini" />
</p:datePicker>
</p:panelGrid>
AltaEdicionCandidato ManagedBean
@ManagedBean(name="altaEdicionCandidato")
@ViewScoped public class AltaEdicionCandidato implements Serializable {
private Candidato candidato;
private Date fecFeedBackMinDate;
public void onFechaEnvioChange(SelectEvent event)
{
this.fecFeedBackMinDate=((Date)event.getObject());
}
...getters / setters
}
As you can see the component fecha_feedback has as mindate the value fecFeedBackMinDate (of the type java.util.Date) of the managedbean altaEdicionCandidato, when selecting any date of the component, it throws the exception java.lang.UnsupportedOperationException exception.
ManagedBean 我只是把它作为参考，因为它甚至不运行。
调试过程，我看到它是在CalendarUtils.convertDate2ZonedDateTime 类中生成的以下行： return date.toInstant()。atZone (zoneId);
private static ZonedDateTime convertDate2ZonedDateTime (Date date, ZoneId zoneId) {
if (date == null) {
return null;
}
else {
return date.toInstant (). atZone (zoneId);
}
}
我读过这是因为数据类型 java.util.Date 只有小时、分钟和秒，但它没有时区，因此会引发异常。
对该方法的调用从DatePicker类开始，它尝试使用getObjectAsLocalTime方法获取java.time.LocalTime类型的 minTime 变量。
protected ValidationResult validateTimeOnlyValue(FacesContext context, LocalTime time) {
LocalTime minTime = CalendarUtils.getObjectAsLocalTime(context, this, getMindate());
LocalTime maxTime = CalendarUtils.getObjectAsLocalTime(context, this, getMaxdate());
...
因为mindate的值是用getmindate方法获取的，所以一直无法知道它返回的是什么
最后，更罕见的是，在另一个视图中，您使用相同的机制和相同的组件和数据类型，也不例外。
AltaPosiciones.xhtml
<p:panel id="p_datos_generales" header="Datos Generales" stleClass="panelGridCenter" >
</p:panel><p:panel id="p_sla" header="SLA" stleClass="panelGridCenter" >
<p:panelGrid >
<p:row>
<p:column>
<p:outputLabel for="fecha_asignacion" value="Fecha de Asignación:" /><br></br>
<p:datePicker id="fecha_asignacion" value="#{altaEdicionPosicionesBean.fechaAsignacion}" readonlyInput="true" showIcon="true" disabled="#{!altaEdicionPosicionesBean.reqInfoSLA}" required="#{altaEdicionPosicionesBean.reqInfoSLA}" label="fecha_asignacion" locale="es" pattern="dd/MM/yyyy" mindate="#{altaEdicionPosicionesBean.fecAsignacionMinDate}">
<p:ajax event="dateSelect" listener="#{altaEdicionPosicionesBean.onFechaAsignacionChange}" update="fec_comp_env_rec" />
</p:datePicker>
</p:column>
</p:row>
</p:panelGrid>
</p:panel>
id 为fechaAsignacion的组件具有managedBean altaEdicionPosicionesBean 的变量 fecAsignacionMinDate 的值，它的类型为java.util.Date
我已经调试过了，它通过了相同的验证和提到的方法，但在这种情况下它不会抛出异常。
这是异常的一部分跟踪
context - java.lang.UnsupportedOperationException
java.lang.UnsupportedOperationException: null
at java.sql.Date.toInstant(Unknown Source) ~[?:1.8.0_231]
at org.primefaces.util.CalendarUtils.convertDate2ZonedDateTime(CalendarUtils.java:422) ~[primefaces-8.0.jar:8.0]
at org.primefaces.util.CalendarUtils.convertDate2LocalDate(CalendarUtils.java:435) ~[primefaces-8.0.jar:8.0]
at org.primefaces.util.CalendarUtils.convertDate2LocalDate(CalendarUtils.java:427) ~[primefaces-8.0.jar:8.0]
at org.primefaces.util.CalendarUtils.getObjectAsLocalDate(CalendarUtils.java:87) ~[primefaces-8.0.jar:8.0]
at org.primefaces.component.datepicker.DatePicker.validateDateValue(DatePicker.java:215) ~[primefaces-8.0.jar:8.0]
at org.primefaces.component.datepicker.DatePicker.validateDateValue(DatePicker.java:211) ~[primefaces-8.0.jar:8.0]
at org.primefaces.component.datepicker.DatePicker.validateValueInternal(DatePicker.java:163) ~[primefaces-8.0.jar:8.0]
at org.primefaces.component.datepicker.DatePicker.validateValue(DatePicker.java:126) ~[primefaces-8.0.jar:8.0]
at javax.faces.component.UIInput.validate(UIInput.java:988) ~[jsf-api-2.2.20.jar:2.2]
at org.primefaces.component.datepicker.DatePicker.validate(DatePicker.java:103) ~[primefaces-8.0.jar:8.0]
at javax.faces.component.UIInput.executeValidate(UIInput.java:1270) ~[jsf-api-2.2.20.jar:2.2]
at javax.faces.component.UIInput.processValidators(UIInput.java:714) ~[jsf-api-2.2.20.jar:2.2]
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:575) ~[jsf-impl-2.2.20.jar:2.2.20]
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183) ~[jsf-impl-2.2.20.jar:2.2.20]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1689) ~[jsf-api-2.2.20.jar:2.2]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700) ~[jsf-api-2.2.20.jar:2.2]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700) ~[jsf-api-2.2.20.jar:2.2]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700) ~[jsf-api-2.2.20.jar:2.2]
at javax.faces.component.UIForm.visitTree(UIForm.java:371) ~[jsf-api-2.2.20.jar:2.2]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700) ~[jsf-api-2.2.20.jar:2.2]
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700) ~[jsf-api-2.2.20.jar:2.2]
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:403) ~[jsf-impl-2.2.20.jar:2.2.20]
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:266) [jsf-impl-2.2.20.jar:2.2.20]
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:65) [primefaces-8.0.jar:8.0]
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1193) [jsf-api-2.2.20.jar:2.2]
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76) [jsf-impl-2.2.20.jar:2.2.20]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [jsf-impl-2.2.20.jar:2.2.20]
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198) [jsf-impl-2.2.20.jar:2.2.20]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:658) [jsf-api-2.2.20.jar:2.2]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-websocket.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:145) [prettyfaces-jsf2-3.3.3.jar:?]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:226) [rewrite-servlet-3.4.1.Final.jar:3.4.1.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:226) [rewrite-servlet-3.4.1.Final.jar:3.4.1.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:155) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:74) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) [spring-security-web-5.1.5.RELEASE.jar:5.1.5.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:130) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
at org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:105) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:123) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.7.RELEASE.jar:5.1.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.36]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [catalina.jar:9.0.36]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [catalina.jar:9.0.36]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [catalina.jar:9.0.36]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [catalina.jar:9.0.36]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [catalina.jar:9.0.36]
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) [catalina.jar:9.0.36]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [catalina.jar:9.0.36]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [catalina.jar:9.0.36]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-coyote.jar:9.0.36]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-coyote.jar:9.0.36]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-coyote.jar:9.0.36]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) [tomcat-coyote.jar:9.0.36]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-coyote.jar:9.0.36]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_231]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_231]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-util.jar:9.0.36]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]
[WARN ] 2020-07-24 17:17:27.918 [http-nio-8080-exec-3] lifecycle - java.lang.UnsupportedOperationException
javax.faces.FacesException: java.lang.UnsupportedOperationException
请，如果您能指导我了解为什么会发生这种情况，我将不胜感激。
预先非常感谢您。
解决方案
我已经找到了造成这种情况的原因，在我的实体模型中，我没有注意到日期列有@Temporal(TemporalType.DATE)注释，我理解它被映射为java.sql.Date而不是java.util .Date，这就是为什么当您第一次直接从加载的对象加载并引用最小值时，它会标记错误。我删除了这些注释，它可以正常工作。谢谢大家的意见
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