如何捕获数据库底层异常

Question

org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:81)
……
……
省略
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.sql.BatchUpdateException: ORA-00001: unique constraint (SI.UK_CN_EN) violated

----说明---------------------------------------------------------------------------------------
我们的项目是SSH2
我现在只能捕获到HibernateException：Could not execute JDBC batch update
但是我想要捕获底层异常信息：java.sql.BatchUpdateException: ORA-00001: unique constraint (SI.UK_CN_EN) violated
请问我如何才能捕捉到数据库底层异常

Answer 1

把日志的输出级别改改~~~，你能看到好多东西。