javax.validation.ValidationException:HV000028:在p / h中使用f:convertNumber时isValid调用期间出现意外异常:dataTable

时间:2014-06-18 19:34:53

标签: jsf primefaces validation jsf-2.2

我正在尝试使用<f:convertNumber>内的<p:dataTable>,如下所示。

<p:column headerText="Text">
    <p:cellEditor>
        <f:facet name="output">
            <h:outputText value="#{country.countryCode}"/>
        </f:facet>
        <f:facet name="input">
            <p:inputText value="#{country.countryCode}" required="true">
                <f:validateLength minimum="1" maximum="45"/>
                <f:convertNumber integerOnly="true" type="number"/>
            </p:inputText>
        </f:facet>
    </p:cellEditor>
</p:column>

其中country.countryCode是关联数据模型中的String类型属性。

我遇到以下异常:

INFO:   javax.validation.ValidationException: HV000028: Unexpected exception during isValid call.
javax.validation.ValidationException: HV000028: Unexpected exception during isValid call.
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateSingleConstraint(ConstraintTree.java:284)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:133)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:91)
    at org.hibernate.validator.internal.metadata.core.MetaConstraint.validateConstraint(MetaConstraint.java:85)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validatePropertyForDefaultGroup(ValidatorImpl.java:855)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validatePropertyForCurrentGroup(ValidatorImpl.java:768)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validateValueInContext(ValidatorImpl.java:725)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validateValue(ValidatorImpl.java:184)
    at javax.faces.validator.BeanValidator.validate(BeanValidator.java:315)
    at javax.faces.component.UIInput.validateValue(UIInput.java:1165)
    at javax.faces.component.UIInput.validate(UIInput.java:983)
    at javax.faces.component.UIInput.executeValidate(UIInput.java:1249)
    at javax.faces.component.UIInput.processValidators(UIInput.java:712)
    at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1258)
    at org.primefaces.component.celleditor.CellEditor.processValidators(CellEditor.java:82)
    at org.primefaces.component.api.UIData.process(UIData.java:339)
    at org.primefaces.component.api.UIData.processChildren(UIData.java:323)
    at org.primefaces.component.api.UIData.processPhase(UIData.java:285)
    at org.primefaces.component.api.UIData.processValidators(UIData.java:259)
    at org.primefaces.component.datatable.DataTable.processValidators(DataTable.java:622)
    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:592)
    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
    at org.primefaces.component.api.UIData.visitTree(UIData.java:692)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIForm.visitTree(UIForm.java:371)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:406)
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:269)
    at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)
    at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
    at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1193)
    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:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:344)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:70)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at filter.NoCacheFilter.doFilter(NoCacheFilter.java:28)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:316)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.CharSequence
    at org.hibernate.validator.internal.constraintvalidators.SizeValidatorForCharSequence.isValid(SizeValidatorForCharSequence.java:33)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateSingleConstraint(ConstraintTree.java:281)
    ... 73 more

WARNING:   javax.validation.ValidationException: HV000028: Unexpected exception during isValid call.
javax.faces.FacesException: javax.validation.ValidationException: HV000028: Unexpected exception during isValid call.
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:276)
    at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)
    at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
    at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1193)
    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:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:344)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:70)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at filter.NoCacheFilter.doFilter(NoCacheFilter.java:28)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:316)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
    at java.lang.Thread.run(Thread.java:722)
Caused by: javax.validation.ValidationException: HV000028: Unexpected exception during isValid call.
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateSingleConstraint(ConstraintTree.java:284)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:133)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:91)
    at org.hibernate.validator.internal.metadata.core.MetaConstraint.validateConstraint(MetaConstraint.java:85)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validatePropertyForDefaultGroup(ValidatorImpl.java:855)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validatePropertyForCurrentGroup(ValidatorImpl.java:768)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validateValueInContext(ValidatorImpl.java:725)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validateValue(ValidatorImpl.java:184)
    at javax.faces.validator.BeanValidator.validate(BeanValidator.java:315)
    at javax.faces.component.UIInput.validateValue(UIInput.java:1165)
    at javax.faces.component.UIInput.validate(UIInput.java:983)
    at javax.faces.component.UIInput.executeValidate(UIInput.java:1249)
    at javax.faces.component.UIInput.processValidators(UIInput.java:712)
    at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1258)
    at org.primefaces.component.celleditor.CellEditor.processValidators(CellEditor.java:82)
    at org.primefaces.component.api.UIData.process(UIData.java:339)
    at org.primefaces.component.api.UIData.processChildren(UIData.java:323)
    at org.primefaces.component.api.UIData.processPhase(UIData.java:285)
    at org.primefaces.component.api.UIData.processValidators(UIData.java:259)
    at org.primefaces.component.datatable.DataTable.processValidators(DataTable.java:622)
    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:592)
    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
    at org.primefaces.component.api.UIData.visitTree(UIData.java:692)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIForm.visitTree(UIForm.java:371)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:406)
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:269)
    ... 42 more
Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.CharSequence
    at org.hibernate.validator.internal.constraintvalidators.SizeValidatorForCharSequence.isValid(SizeValidatorForCharSequence.java:33)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateSingleConstraint(ConstraintTree.java:281)
    ... 73 more

SEVERE:   javax.validation.ValidationException: HV000028: Unexpected exception during isValid call.
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateSingleConstraint(ConstraintTree.java:284)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:133)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:91)
    at org.hibernate.validator.internal.metadata.core.MetaConstraint.validateConstraint(MetaConstraint.java:85)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validatePropertyForDefaultGroup(ValidatorImpl.java:855)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validatePropertyForCurrentGroup(ValidatorImpl.java:768)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validateValueInContext(ValidatorImpl.java:725)
    at org.hibernate.validator.internal.engine.ValidatorImpl.validateValue(ValidatorImpl.java:184)
    at javax.faces.validator.BeanValidator.validate(BeanValidator.java:315)
    at javax.faces.component.UIInput.validateValue(UIInput.java:1165)
    at javax.faces.component.UIInput.validate(UIInput.java:983)
    at javax.faces.component.UIInput.executeValidate(UIInput.java:1249)
    at javax.faces.component.UIInput.processValidators(UIInput.java:712)
    at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1258)
    at org.primefaces.component.celleditor.CellEditor.processValidators(CellEditor.java:82)
    at org.primefaces.component.api.UIData.process(UIData.java:339)
    at org.primefaces.component.api.UIData.processChildren(UIData.java:323)
    at org.primefaces.component.api.UIData.processPhase(UIData.java:285)
    at org.primefaces.component.api.UIData.processValidators(UIData.java:259)
    at org.primefaces.component.datatable.DataTable.processValidators(DataTable.java:622)
    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:592)
    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
    at org.primefaces.component.api.UIData.visitTree(UIData.java:692)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIForm.visitTree(UIForm.java:371)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1701)
    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:406)
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:269)
    at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)
    at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
    at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1193)
    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:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:344)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:70)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at filter.NoCacheFilter.doFilter(NoCacheFilter.java:28)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:316)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.CharSequence
    at org.hibernate.validator.internal.constraintvalidators.SizeValidatorForCharSequence.isValid(SizeValidatorForCharSequence.java:33)
    at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateSingleConstraint(ConstraintTree.java:281)
    ... 73 more

<f:convertNumber>为什么<p:dataTable>无效?能使它起作用吗?

2 个答案:

答案 0 :(得分:0)

我在<f:convertNumber>内使用<p:dataTable>时从来没有遇到任何问题,一个简单的游乐场示例似乎与我合作

您的实际错误是由此引起的:

Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.CharSequence

尝试找到您尝试解析长的位置。也许它在数据库中很长,你试图把它放在一个字符串中?

答案 1 :(得分:0)

按惯例(设计)validators run after converters,因为它们应始终验证“业务”对象,而不是客户端发送的文本值。

因此,(显式)f:convertNumber首先运行,在这种情况下将从客户端发布的值转换为java.lang.Long。接下来运行f:validateLength,验证程序需要java.lang.String,因为那是definition of this f:validateLength,验证字符串的长度(不是数字)。但是Integer对象可以被“处理”为一个字符串,但是你将得到哈希值,然后验证其长度,内容。它不会崩溃,但不会像你期望的那样工作。

如此有效地使用了验证器和转换器的错误组合。更重要的是,因为您似乎再次将countryCode存储为varChar,但首先将其转换为数字(Long)。由于您似乎也对实体有约束,因此JSF会自动触发该字段的验证,并且在该步骤中,它会尝试对这些实体进行验证。在该步骤中,classCast发生。

然后无需先转换为数字,但f:validateLengthf:validateRegex pattern="[0-9]*"的组合应该足够像@Tiny已经说明的那样。哎呀,如果你对实体有约束,根本不需要UI中的验证器。