如何解决org.hibernate.HibernateException：未设置“hibernate.dialect”时，对 DialectResolutionInfo 的访问不能为 null
我正在将 Hibernate 从 4 迁移到 5.2.18，该应用程序在 Spring MVC 上。
我收到以下错误
org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:271)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:233)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:242)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:417)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:86)
at org.hibernate.boot.MetadataSources.buildMetadata(MetadataSources.java:183)
at org.hibernate.tool.util.MetadataHelper.buildFromMetadataSources(MetadataHelper.java:49)
at org.hibernate.tool.util.MetadataHelper.getMetadata(MetadataHelper.java:21)
at org.hibernate.tool.hbm2x.AbstractExporter.buildMetadata(AbstractExporter.java:279)
at org.hibernate.tool.hbm2x.AbstractExporter.getMetadata(AbstractExporter.java:270)
at org.hibernate.tool.hbm2x.AbstractExporter.setupContext(AbstractExporter.java:183)
at org.hibernate.tool.hbm2x.POJOExporter.setupContext(POJOExporter.java:44)
at org.hibernate.tool.hbm2x.AbstractExporter.start(AbstractExporter.java:98)
at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:39)
at org.hibernate.tool.ant.HibernatetoolTask.execute(HibernatetoolTask.java:180)
at org.apache.tools.ant.UnkNownElement.execute(UnkNownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(UnkNown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tools.ant.dispatch.dispatchUtils.execute(dispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350)
at java.util.Vector.forEach(Vector.java:1277)
at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:67)
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:498)
at org.apache.tools.ant.dispatch.dispatchUtils.execute(dispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350)
at net.sf.antcontrib.logic.OutOfDate.execute(OutOfDate.java:457)
at org.apache.tools.ant.UnkNownElement.execute(UnkNownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(UnkNown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tools.ant.dispatch.dispatchUtils.execute(dispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350)
at java.util.Vector.forEach(Vector.java:1277)
at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:67)
at org.apache.tools.ant.UnkNownElement.execute(UnkNownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(UnkNown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tools.ant.dispatch.dispatchUtils.execute(dispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350)
at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:391)
at org.apache.tools.ant.UnkNownElement.execute(UnkNownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(UnkNown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tools.ant.dispatch.dispatchUtils.execute(dispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350)
at org.apache.tools.ant.taskdefs.Parallel$TaskRunnable.run(Parallel.java:454)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:100)
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:54)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentinitiator.initiateService(JdbcEnvironmentinitiator.java:137)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentinitiator.initiateService(JdbcEnvironmentinitiator.java:35)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:259)
... 59 more
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