在 Hibernate 4 中获取本机 Oracle Connection 的句柄以运行存储过程

2022-01-07 00:00:00 oracle Hibernate jboss

这是使用 Hibernate 4.1 执行本机查询的后续操作

我已经尝试了列出的答案中的选项，但出现错误并且无法将代理连接解包到 Oracle 需要的本机连接中

I've tried the options in the listed answer but we get errors and are unable to unwrap the proxied connection into the native connection which Oracle needs

选项 2 代码

public void execute(Connection connection) throws SQLException {
    OracleConnection oracleConnection = connection.unwrap( OracleConnection.class );
    ...
}

错误

java.lang.reflect.UndeclaredThrowableException
ERROR [stderr] (http-localhost/127.0.0.1:8080-3) at $Proxy64.unwrap(Unknown Source)

选项 3 代码

public void execute(Connection connection) throws SQLException {
    Connection unproxiedConnection = ( (JdbcWrapper<Connection>) connection ).getWrappedObject();
    ...
}

错误

java.lang.ClassCastException: org.jboss.jca.adapters.jdbc.jdk6.WrappedConnectionJDK6 cannot be cast to oracle.jdbc.OracleConnection
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:158) [ojdbc6.jar:11.2.0.1.0]
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:126) [ojdbc6.jar:11.2.0.1.0]
at com.xxx.massBookingUpdateParam(HoldoversDAO.java:312) [Business-1.jar:]
at com.xxx.saveHoldovers(HoldoversServiceBean.java:86) [Business-1.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0]
at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0]
at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:129) [jboss-as-weld-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:137) [jboss-as-weld-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:36) [jboss-as-ee-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:36) [jboss-as-ee-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [jboss-as-ejb3-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47) [jboss-as-jpa-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:74) [jboss-as-weld-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51) [jboss-as-ejb3-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final-redhat-1.jar:1.1.1.Final-redhat-1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:227) [jboss-as-ejb3-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
... 71 more

有什么建议吗?

我也试过这个选项 Hibernate 4 中的 SessionFactory.openSession(Connection) 但是那个类根本没有被实例化

I've also tried this option SessionFactory.openSession(Connection) in Hibernate 4 but that class does not get instantiated at all

更新:

选项 2 代码工作正常.问题是我们有 2 个版本的 ojbc.jar - 一个作为 Jboss 模块，一个在 EAR 中，因此出现异常.

Option 2 code works correctly. The problem was we had 2 versions of ojbc.jar - one as a Jboss module and one within the EAR, hence the Exception.

推荐答案

选项 2 代码正常工作.

Option 2 code works correctly.

即.

OracleConnection oracleConnection = connection.unwrap( OracleConnection.class );

问题是我们有 2 个版本的 ojbc.jar - 一个作为 Jboss 模块，一个在 EAR 中，因此出现 ClassCastException.

The problem was we had 2 versions of ojbc.jar - one as a Jboss module and one within the EAR, hence the ClassCastException.

正如评论中提到的，这段代码也有效

As mentioned in the comments, this code also works

oracle.jdbc.driver.OracleConnection oc = (oracle.jdbc.driver.OracleConnection) connection.getMetaData().getConnection();

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