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我有一個運行於Tomcat 8.0.20上的Spring 3.1.1，Hibernate 3.6.0.Final和Hibernate Spatial 1.1.1的應用程序。到目前爲止，我們使用的是Oracle 11.2.0.4，但我們希望遷移到PostgreSQL 9.2-1002.jdbc4/PostGIS 2.1.6。定義PostGIS連接時未找到Oracle連接
我們將在不同階段遷移數據庫模式，因此在某個階段，我們需要一些連接來與Oracle合作，一些連接使用PostGIS。爲了開始開發和測試這個，我刪除任何Oracle Maven的依賴，並增加有需要的與Postgres一起工作，在Hibernate Spatial 1.1.1 Tutorial描述，主要是：
<dependency>
<groupId>org.hibernatespatial</groupId>
<artifactId>hibernate-spatial-postgis</artifactId>
<version>1.1.1</version>
</dependency>
在Tomcat中的context.xml 我配置了一個單連接現在：
<Resource accessToUnderlyingConnectionAllowed="true" auth="Container"
autoReconnect="true" driverClassName="org.postgresql.Driver"
logAbandoned="true" maxWait="5000" minEvictableIdleTimeMillis="60000"
name="jdbc/dbname" numTestsPerEvictionRun="3" password="xxx"
removeAbandoned="true" removeAbandonedTimeout="60" testOnBorrow="true"
testWhileIdle="true" timeBetweenEvictionRunsMillis="60000"
type="javax.sql.DataSource" url="jdbc:postgresql://servername:5432/dbname"
username="username" validationQuery="select 1" />
這工作得很好。我可以在數據庫中插入一條記錄，首先在其幾何字段中輸入一個空值，然後我將用該點的座標值更新它。該字段的定義如下：
@Type(type = "org.hibernatespatial.GeometryUserType")
@Column(name = "geom", columnDefinition="Geometry", nullable = true)
protected Geometry geom;
這是行得通的，沒問題。
<dependency>
<artifactId>hibernate-spatial-oracle</artifactId>
<groupId>org.hibernatespatial</groupId>
<version>1.1.1</version>
</dependency>
即使我不配置任何額外的連接，也沒有爲了使用Oracle在我的項目改變什麼，記錄插入Postgres的預期：這個問題，只要我包括甲骨文Maven的依賴來，但是當涉及到更新其幾何字段時，即使連接保持不變，我也會在下面粘貼堆棧跟蹤，這是意想不到的「發現Oracle連接問題」。
org.hibernatespatial.helper.FinderException：無法從PreparedStatement獲取OracleSpatial Connection對象。
我不明白爲什麼Hibernate能夠將數據插入到數據庫中，但在嘗試更新空間數據時會查找Oracle連接，僅當添加不應該是Oracle Maven依賴項時使用，因爲我保持爲PostGIS配置連接。
有關我可能做錯什麼的想法嗎？
在此先感謝。
編輯：看起來，當啓動Tomcat和初始化GeometryUserType時，configure方法被稱爲null作爲屬性。所以它默認爲一個spatialDialect，它將是第一個從可用的中找到的。由於有兩個（Oracle和PostGIS），它只會選擇第一個（恰好是Oracle）。
所以我必須在配置中丟失一些東西，但我認爲這足以進入* persistence.xml *並聲明持久化單元應該使用該方言。
<persistence-unit name="pu_name" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>${jta.datasource.prefix}datasource_name</jta-data-source>
<class>com.myorganization.MyClass</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="hibernate.dialect" value="org.hibernatespatial.postgis.PostgisDialect" />
(...)
javax.persistence.PersistenceException: org.hibernate.HibernateException: Problem finding Oracle Connection
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1389)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1317)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1323)
at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:965)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:365)
at com.sun.proxy.$Proxy62.flush(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)
at com.sun.proxy.$Proxy45.flush(Unknown Source)
at com.mapflow.geotagdata.common.processing.impl.ProcessorInnerStepsImpl$6.executeTransactionalCommand(ProcessorInnerStepsImpl.java:1056)
at com.mapflow.geotagdata.common.processing.impl.ProcessorInnerStepsImpl$6.executeTransactionalCommand(ProcessorInnerStepsImpl.java:1)
at com.mapflow.geotagdata.common.transactions.TransactionalCommandExecutor.executeTxRequiresNew(TransactionalCommandExecutor.java:37)
at com.mapflow.geotagdata.common.transactions.TransactionalCommandExecutor$$FastClassByCGLIB$$7beb81b5.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:689)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622)
at com.mapflow.geotagdata.common.transactions.TransactionalCommandExecutor$$EnhancerByCGLIB$$4c535b1b.executeTxRequiresNew(<generated>)
at com.mapflow.geotagdata.common.processing.impl.ProcessorInnerStepsImpl.synchPendingTaggedBatchToDB(ProcessorInnerStepsImpl.java:1012)
at com.mapflow.geotagdata.common.processing.impl.ProcessorInnerStepsImpl.access$0(ProcessorInnerStepsImpl.java:996)
at com.mapflow.geotagdata.common.processing.impl.ProcessorInnerStepsImpl$5.call(ProcessorInnerStepsImpl.java:969)
at com.mapflow.geotagdata.common.processing.impl.ProcessorInnerStepsImpl$5.call(ProcessorInnerStepsImpl.java:1)
at com.mapflow.geotagdata.common.processing.utility.RetryOnExceptionBuilder.execute(RetryOnExceptionBuilder.java:96)
at com.mapflow.geotagdata.common.processing.impl.ProcessorInnerStepsImpl.dataTaggingPhase(ProcessorInnerStepsImpl.java:964)
at com.mapflow.geotagdata.common.processing.impl.ProcessorOuterStepsImpl.doOuterStepLineByLineInnerSteps(ProcessorOuterStepsImpl.java:107)
at com.mapflow.geotagdata.common.processing.impl.ProcessorImpl.process(ProcessorImpl.java:149)
at com.mapflow.geotagdata.common.processing.impl.ProcessorImpl.processFile(ProcessorImpl.java:80)
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:497)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.aop.interceptor.AsyncExecutionInterceptor$1.call(AsyncExecutionInterceptor.java:80)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.hibernate.HibernateException: Problem finding Oracle Connection
at org.hibernatespatial.oracle.OracleJDBCTypeFactory.createStruct(OracleJDBCTypeFactory.java:38)
at org.hibernatespatial.oracle.SDOGeometry.store(SDOGeometry.java:154)
at org.hibernatespatial.oracle.SDOGeometryType.conv2DBGeometry(SDOGeometryType.java:88)
at org.hibernatespatial.oracle.SDOGeometryType.nullSafeSet(SDOGeometryType.java:77)
at org.hibernatespatial.GeometryUserType.nullSafeSet(GeometryUserType.java:201)
at org.hibernate.type.CustomType.nullSafeSet(CustomType.java:140)
at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:2184)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2559)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2495)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2822)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:113)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:265)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:185)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:962)
... 44 more
Caused by: org.hibernatespatial.helper.FinderException: Couldn't get at the OracleSpatial Connection object from the PreparedStatement.
at org.hibernatespatial.oracle.DefaultConnectionFinder.find(DefaultConnectionFinder.java:82)
at org.hibernatespatial.oracle.DefaultConnectionFinder.find(DefaultConnectionFinder.java:68)
at org.hibernatespatial.oracle.DefaultConnectionFinder.find(DefaultConnectionFinder.java:68)
at org.hibernatespatial.oracle.DefaultConnectionFinder.find(DefaultConnectionFinder.java:51)
at org.hibernatespatial.oracle.OracleJDBCTypeFactory.createStruct(OracleJDBCTypeFactory.java:36)
... 61 more