我有一个在 Tomcat 8.0.20 上运行 Spring 3.1.1、Hibernate 3.6.0.Final 和 Hibernate Spatial 1.1.1 的应用程序。到目前为止,我们使用的是 Oracle 11.2.0.4,但我们想迁移到 PostgreSQL 9.2-1002.jdbc4 / PostGIS 2.1.6。
我们将在不同阶段迁移数据库模式,因此在某个阶段,我们将需要一些连接来使用 Oracle 和一些 PostGIS。为了开始开发和测试,我删除了所有 Oracle Maven 依赖项并添加了必要的依赖项以使用 Postgres,如Hibernate Spatial 1.1.1 Tutorial中所述,主要是:
<dependency>
<groupId>org.hibernatespatial</groupId>
<artifactId>hibernate-spatial-postgis</artifactId>
<version>1.1.1</version>
</dependency>
在 Tomcat context.xml中,我现在已经配置了一个连接:
<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" />
这工作正常。我可以先在其几何字段中使用空值将记录插入数据库,然后使用该点的坐标值对其进行更新。该字段定义为:
@Type(type = "org.hibernatespatial.GeometryUserType")
@Column(name = "geom", columnDefinition="Geometry", nullable = true)
protected Geometry geom;
这行得通,没问题。只要我包含 Oracle 的 Maven 依赖项,问题就会出现:
<dependency>
<artifactId>hibernate-spatial-oracle</artifactId>
<groupId>org.hibernatespatial</groupId>
<version>1.1.1</version>
</dependency>
即使我没有配置任何额外的连接,也没有更改项目中的任何内容以使用 Oracle,该记录仍按预期插入 Postgres,但在更新其 Geometry 字段时,我将堆栈跟踪粘贴在下面,即即使连接保持不变,也会出现意外的“查找 Oracle 连接的问题”。
org.hibernatespatial.helper.FinderException:无法从 PreparedStatement 获取 OracleSpatial Connection 对象。
我不明白为什么 Hibernate 能够将数据插入数据库,但是在尝试更新空间数据时会寻找 Oracle 连接,只有当我添加了一个不应该使用的 Oracle Maven 依赖项时,我保持我为 PostGIS 配置的连接。
知道我可能做错了什么吗?
提前致谢。
编辑:似乎在启动 Tomcat 并初始化 GeometryUserType 时,使用 null 作为属性调用配置方法。所以它默认为一个spatialDialect,它将是它从可用中找到的第一个。由于有两个(Oracle 和 PostGIS),它只会选择第一个(恰好是 Oracle)。
所以我必须在配置中遗漏一些东西,但我认为去 * persistence.xml * 并声明持久性单元应该使用该方言就足够了。
<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