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Hibernate 4 with java.time.LocalDate and DATE（） construct

java hibernate java-8
2022-09-01 10:19:49

我正在尝试在我的应用程序中将LocalDate和LocalDateTime与Java 8一起使用。我使用的是Hibernate 4.3.5和Spring。我在这里遵循了这个有趣的教程，所有工作，但我在使用DATE（）构造时遇到了问题。

当我尝试做：

SELECT * FROM TABLE WHERE DATE(data)=DATE(:data)

如果我手动进行的查询（复制和过去的查询Hibernate print）工作正常，我总是有一个空列表。我认为问题在于Hibernate内部进行的转换;它尝试将 LocalDate 转换为 java.util.Date。我之所以这样说，是因为如果我以这种方式更改查询：

SELECT * FROM TABLE WHERE DATE(data)=:data

我有这个例外：

java.lang.IllegalArgumentException: Parameter value [2014-05-27T00:00] did not match expected type [java.util.Date (n/a)]
at org.hibernate.jpa.spi.BaseQueryImpl.validateBinding(BaseQueryImpl.java:885)
at org.hibernate.jpa.internal.QueryImpl.access$000(QueryImpl.java:80)
at org.hibernate.jpa.internal.QueryImpl$ParameterRegistrationImpl.bindValue(QueryImpl.java:248)
at org.hibernate.jpa.spi.BaseQueryImpl.setParameter(BaseQueryImpl.java:631)
at org.hibernate.jpa.spi.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:180)
at org.hibernate.jpa.spi.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:49)
at it.AppuntamentoCustomRepositoryImpl.findAppuntamenti(AppuntamentoCustomRepositoryImpl.java:95)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:64)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy91.findAppuntamenti(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.granite.messaging.service.ServiceInvocationContext.invoke(ServiceInvocationContext.java:72)
at org.granite.messaging.service.security.AbstractSecurityService.endAuthorization(AbstractSecurityService.java:104)
at org.granite.spring.security.SpringSecurity3Service.authorize(SpringSecurity3Service.java:289)
at org.granite.messaging.service.ServiceInvoker.invoke(ServiceInvoker.java:220)
at org.granite.messaging.amf.process.AMF3MessageProcessor.processRemotingMessage(AMF3MessageProcessor.java:141)
at org.granite.messaging.amf.process.AMF3MessageProcessor.process(AMF3MessageProcessor.java:60)
at org.granite.messaging.amf.process.AMF0MessageProcessor.process(AMF0MessageProcessor.java:79)
at org.granite.messaging.webapp.AMFEndpoint.serviceJMFAMF(AMFEndpoint.java:151)
at org.granite.messaging.webapp.AMFEndpoint.service(AMFEndpoint.java:64)
at org.granite.spring.ServerFilter.handle(ServerFilter.java:322)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:755)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:370)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)
at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:667)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:745)

我也做了这个测试：

TypedQuery<Date> test = manager.createQuery("select DATE(:test) FROM Appuntamento", Date.class);

    test.setParameter("test", LocalDate.now());
    for (Date t : test.getResultList()) {
        log.debug("T----------->" + t);
    }

不幸的是，DATE（：test）总是空的！！

任何建议是赞赏的，是赞赏的

非常感谢


答案 1

如果您使用 JPA 2.1，这很简单。转换器允许 JPA 实体使用新的 和 类。只需定义所需的转换器类：java.time.LocalDatejava.time.LocalDateTime

LocalDatePersistenceConverter.java

import java.time.LocalDate;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;

@Converter
public class LocalDatePersistenceConverter implements AttributeConverter<LocalDate, java.sql.Date> {

  @Override
  public java.sql.Date convertToDatabaseColumn(LocalDate entityValue) {
    if (entityValue != null) {
      return java.sql.Date.valueOf(entityValue);
    }
    return null;
  }

  @Override
  public LocalDate convertToEntityAttribute(java.sql.Date databaseValue) {
    if (databaseValue != null) {
      return databaseValue.toLocalDate();
    }
    return null;
  }
}

LocalDateTimePersistenceConverter.java

import java.time.LocalDateTime;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;

@Converter
public class LocalDateTimePersistenceConverter implements AttributeConverter<LocalDateTime, java.sql.Timestamp> {

  @Override
  public java.sql.Timestamp convertToDatabaseColumn(LocalDateTime entityValue) {
    if (entityValue != null) {
      return java.sql.Timestamp.valueOf(entityValue);
    }
    return null;
  }

  @Override
  public LocalDateTime convertToEntityAttribute(java.sql.Timestamp databaseValue) {
    if (databaseValue != null) {
      return databaseValue.toLocalDateTime();
    }
    return null;
  }
}

然后使用@Converter注释对相应的实体属性进行批注：

@Convert(converter = LocalDatePersistenceConverter.class)
private LocalDate completedDate;

2015
年 9 月更新 Hibernate 5 本身支持 java 8 日期/时间 API。只需确保休眠 java8 jar 位于类路径上即可。


答案 2

好消息

在 5.0.0.CR2 开发版本中不再需要转换器。根据官方网站，它支持java8特定的数据类型，包括java.time.LocalDate。

http://hibernate.org/orm/downloads/

改进的引导，休眠java8，休眠空间，卡拉夫支持


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