虽然内置H2 EmbeddedDatabaseConfigurer提供了与DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=false选项集的JDBC连接，但是AbstractEmbeddedDatabaseConfigurer.shutdown()引起了烦人的异常。
关于stackoverflow的这个主题已经有很多讨论了。我尝试使用这些选项，并得出结论，自定义DB_CLOSE_DELAY=20;DB_CLOSE_ON_EXIT=false提供的相当奇数设置（DataSourceFactory）减少了出现次数，但不要完全消除它。
/**
* This factory tries to solve the problem that Spring tries to close a data source that has already been closed by the H2 engine/H2 driver.
*/
public class H2DataSourceFactory implements DataSourceFactory {
private final SimpleDriverDataSource dataSource = new SimpleDriverDataSource();
@Override
public ConnectionProperties getConnectionProperties() {
return new ConnectionProperties() {
@Override
public void setDriverClass(Class<? extends Driver> driverClass) {
dataSource.setDriverClass(driverClass);
}
@Override
public void setUrl(String url) {
// ignore the URL and use a custom URL
dataSource.setUrl("jdbc:h2:mem:%s;DB_CLOSE_DELAY=20;DB_CLOSE_ON_EXIT=false;MODE=PostgreSQL");
}
@Override
public void setUsername(String username) {
dataSource.setUsername(username);
}
@Override
public void setPassword(String password) {
dataSource.setPassword(password);
}
};
}
@Override
public DataSource getDataSource() {
return this.dataSource;
}
}
有其他人找到真正摆脱这种影响的解决方案吗？
这是stacktrace：
14:12:32.691 [localhost-startStop-2] WARN o.s.j.d.e.H2EmbeddedDatabaseConfigurer - Could not shutdown embedded database
org.h2.jdbc.JdbcSQLException: Database is already closed (to disable automatic closing at VM shutdown, add ";DB_CLOSE_ON_EXIT=FALSE" to the db URL) [90121-160]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:329) ~[h2-1.3.160.jar:1.3.160]
at org.h2.message.DbException.get(DbException.java:169) ~[h2-1.3.160.jar:1.3.160]
at org.h2.message.DbException.get(DbException.java:146) ~[h2-1.3.160.jar:1.3.160]
at org.h2.message.DbException.get(DbException.java:135) ~[h2-1.3.160.jar:1.3.160]
at org.h2.jdbc.JdbcConnection.checkClosed(JdbcConnection.java:1394) ~[h2-1.3.160.jar:1.3.160]
at org.h2.jdbc.JdbcConnection.checkClosed(JdbcConnection.java:1369) ~[h2-1.3.160.jar:1.3.160]
at org.h2.jdbc.JdbcConnection.createStatement(JdbcConnection.java:191) ~[h2-1.3.160.jar:1.3.160]
at org.springframework.jdbc.datasource.embedded.AbstractEmbeddedDatabaseConfigurer.shutdown(AbstractEmbeddedDatabaseConfigurer.java:42) ~[spring-jdbc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactory.shutdownDatabase(EmbeddedDatabaseFactory.java:177) [spring-jdbc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactory$EmbeddedDataSourceProxy.shutdown(EmbeddedDatabaseFactory.java:250) [spring-jdbc-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_25]
at org.springframework.beans.factory.support.DisposableBeanAdapter.invokeCustomDestroyMethod(DisposableBeanAdapter.java:350) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:273) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:900) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:907) [spring-beans-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:908) [spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:884) [spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:836) [spring-context-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:579) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:115) [spring-web-4.1.5.RELEASE.jar:4.1.5.RELEASE]
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4773) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5385) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1425) [tomcat-embed-core-8.0.20.jar:8.0.20]
at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1414) [tomcat-embed-core-8.0.20.jar:8.0.20]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_25]