我正在尝试使用2.2.9版，Hibernate 3.6.9和Spring 3.1.2设置HSQL数据库进行测试。我们一直在使用本地postgresql数据库，但正在进行测试。我有40-50个测试类，共有200多个测试。如果从eclipse单独运行，每个测试类都可以正常工作。当我使用Maven编译和测试所有测试错误时。在某些时候，它似乎试图再次运行我的init.sql脚本并再次创建表。我将此作为我的最终目标：
Caused by: org.hsqldb.HsqlException: object name already exists: DUAL_ASSET_ASSETID_SEQ
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.SchemaObjectSet.checkAdd(Unknown Source)
at org.hsqldb.SchemaManager.checkSchemaObjectNotExists(Unknown Source)
at org.hsqldb.StatementSchema.setOrCheckObjectName(Unknown Source)
at org.hsqldb.StatementSchema.getResult(Unknown Source)
at org.hsqldb.StatementSchema.execute(Unknown Source)
at org.hsqldb.Session.executeCompiledStatement(Unknown Source)
at org.hsqldb.Session.executeDirectStatement(Unknown Source)
at org.hsqldb.Session.execute(Unknown Source) ... 52 more
我在创建该表时尝试使用'IF NOT EXISTS'，但是当我创建序列时，我得到了相同的错误。所以它试图做的不仅仅是那一个表，我不能在CREATE SEQUENCE语句中使用'IF NOT EXISTS'，所以我被困在那里。
为什么我的数据似乎又被加载了？我偶尔也会收到这个错误：
2012-10-16 10:55:48,489 [Thread-0] WARN
org.springframework.jdbc.datasource.embedded.HsqlEmbeddedDatabaseConfigurer:shutdown:46 - Could not shutdown embedded database java.sql.SQLException: Database lock acquisition failure: attempt to connect while db opening /closing
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
at org.springframework.jdbc.datasource.SimpleDriverDataSource.getConnectionFromDriver(SimpleDriverDataSource.java:140)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:149)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119)
at org.springframework.jdbc.datasource.embedded.AbstractEmbeddedDatabaseConfigurer.shutdown(AbstractEmbeddedDatabaseConfigurer.java:40)
at org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactory.shutdownDatabase(EmbeddedDatabaseFactory.java:152)
at org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactoryBean.destroy(EmbeddedDatabaseFactoryBean.java:65)
at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:211)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:498)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:474)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:442)
at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1071)
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1045)
at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:963) Caused by: org.hsqldb.HsqlException: Database lock acquisition failure: attempt to connect while db opening /closing at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.DatabaseManager.getDatabase(Unknown Source)
at org.hsqldb.DatabaseManager.newSession(Unknown Source) ... 16 more
答案 0 :(得分：0)
当前版本的HSQLDB允许CREATE SEQUENCE IF NOT EXISTS语句。
或者对于测试，您可以在创建任何对象之前删除PUBLIC模式的全部内容。
PS_INSIDEFRAME