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我有迁飞JDBC迁移麻烦：执行我试图关闭数据库连接与conn.close();方法，而且所有报表后，我收到org.postgresql.util.PSQLException: This connection has been closed.例外。当我检查数据库时 - 我在迁移过程中所做的所有更改都已完成，但schema_version表未更新：未添加有关迁移的项目。
更多细节在这里：
在flyway.properties我添加了classpath:com/packageone/somepackege/database/migration到flyway.locations部分。然后，我创建了将执行迁移类：public class V1_1_1__SomeImportantMigration implements JdbcMigration并填写migrate方式类似：即在migrate方法做
迁飞JDBC连接迁移麻烦
@Override
public void migrate(Connection conn) throws Exception {
beforeActions(conn);
veryImportantMigration(conn, getData(conn));
afterActions(conn);
conn.close();
}
事情被应用，但关闭连接导致异常。
由于上述信息，我有这样的问题：为什么这个连接在被我关闭之前关闭？并通过什么？
UPDATE（堆栈跟踪）：
[ERROR] Unable to rollback transaction
org.postgresql.util.PSQLException: This connection has been closed.
at org.postgresql.jdbc2.AbstractJdbc2Connection.checkClosed(AbstractJdbc2Connection.java:820)
at org.postgresql.jdbc2.AbstractJdbc2Connection.rollback(AbstractJdbc2Connection.java:837)
at org.flywaydb.core.internal.util.jdbc.TransactionTemplate.execute(TransactionTemplate.java:96)
at org.flywaydb.core.internal.command.DbMigrate.applyMigrations(DbMigrate.java:273)
at org.flywaydb.core.internal.command.DbMigrate.access$800(DbMigrate.java:53)
at org.flywaydb.core.internal.command.DbMigrate$2.call(DbMigrate.java:210)
at org.flywaydb.core.internal.command.DbMigrate$2.call(DbMigrate.java:146)
at org.flywaydb.core.internal.dbsupport.postgresql.PostgreSQLAdvisoryLockTemplate.execute(PostgreSQLAdvisoryLockTemplate.java:68)
at org.flywaydb.core.internal.dbsupport.postgresql.PostgreSQLDbSupport.lock(PostgreSQLDbSupport.java:162)
at org.flywaydb.core.internal.metadatatable.MetaDataTableImpl.lock(MetaDataTableImpl.java:174)
at org.flywaydb.core.internal.command.DbMigrate.migrate(DbMigrate.java:146)
at org.flywaydb.core.Flyway$1.execute(Flyway.java:1010)
at org.flywaydb.core.Flyway$1.execute(Flyway.java:971)
at org.flywaydb.core.Flyway.execute(Flyway.java:1464)
at org.flywaydb.core.Flyway.migrate(Flyway.java:971)
at org.flywaydb.maven.MigrateMojo.doExecute(MigrateMojo.java:30)
at org.flywaydb.maven.AbstractFlywayMojo.execute(AbstractFlywayMojo.java:600)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
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:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
[ERROR] Unable to restore autocommit to original value for connection
org.postgresql.util.PSQLException: This connection has been closed.
at org.postgresql.jdbc2.AbstractJdbc2Connection.checkClosed(AbstractJdbc2Connection.java:820)
at org.postgresql.jdbc2.AbstractJdbc2Connection.setAutoCommit(AbstractJdbc2Connection.java:762)
at org.flywaydb.core.internal.util.jdbc.TransactionTemplate.execute(TransactionTemplate.java:114)
at org.flywaydb.core.internal.command.DbMigrate.applyMigrations(DbMigrate.java:273)
at org.flywaydb.core.internal.command.DbMigrate.access$800(DbMigrate.java:53)
at org.flywaydb.core.internal.command.DbMigrate$2.call(DbMigrate.java:210)
at org.flywaydb.core.internal.command.DbMigrate$2.call(DbMigrate.java:146)
at org.flywaydb.core.internal.dbsupport.postgresql.PostgreSQLAdvisoryLockTemplate.execute(PostgreSQLAdvisoryLockTemplate.java:68)
at org.flywaydb.core.internal.dbsupport.postgresql.PostgreSQLDbSupport.lock(PostgreSQLDbSupport.java:162)
at org.flywaydb.core.internal.metadatatable.MetaDataTableImpl.lock(MetaDataTableImpl.java:174)
at org.flywaydb.core.internal.command.DbMigrate.migrate(DbMigrate.java:146)
at org.flywaydb.core.Flyway$1.execute(Flyway.java:1010)
at org.flywaydb.core.Flyway$1.execute(Flyway.java:971)
at org.flywaydb.core.Flyway.execute(Flyway.java:1464)
at org.flywaydb.core.Flyway.migrate(Flyway.java:971)
at org.flywaydb.maven.MigrateMojo.doExecute(MigrateMojo.java:30)
at org.flywaydb.maven.AbstractFlywayMojo.execute(AbstractFlywayMojo.java:600)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
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:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
[ERROR] Unable to release Flyway advisory lock
org.postgresql.util.PSQLException: This connection has been closed.
at org.postgresql.jdbc2.AbstractJdbc2Connection.checkClosed(AbstractJdbc2Connection.java:820)
at org.postgresql.jdbc3.AbstractJdbc3Connection.prepareStatement(AbstractJdbc3Connection.java:275)
at org.postgresql.jdbc2.AbstractJdbc2Connection.prepareStatement(AbstractJdbc2Connection.java:293)
at org.flywaydb.core.internal.dbsupport.JdbcTemplate.prepareStatement(JdbcTemplate.java:319)
at org.flywaydb.core.internal.dbsupport.JdbcTemplate.execute(JdbcTemplate.java:247)
at org.flywaydb.core.internal.dbsupport.postgresql.PostgreSQLAdvisoryLockTemplate.execute(PostgreSQLAdvisoryLockTemplate.java:81)
at org.flywaydb.core.internal.dbsupport.postgresql.PostgreSQLDbSupport.lock(PostgreSQLDbSupport.java:162)
at org.flywaydb.core.internal.metadatatable.MetaDataTableImpl.lock(MetaDataTableImpl.java:174)
at org.flywaydb.core.internal.command.DbMigrate.migrate(DbMigrate.java:146)
at org.flywaydb.core.Flyway$1.execute(Flyway.java:1010)
at org.flywaydb.core.Flyway$1.execute(Flyway.java:971)
at org.flywaydb.core.Flyway.execute(Flyway.java:1464)
at org.flywaydb.core.Flyway.migrate(Flyway.java:971)
at org.flywaydb.maven.MigrateMojo.doExecute(MigrateMojo.java:30)
at org.flywaydb.maven.AbstractFlywayMojo.execute(AbstractFlywayMojo.java:600)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
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:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
你说他们是部分完成的。你有没有例外？你能提供日志吗？ – Korgen
您不应该关闭该连接，它由飞路拥有。 –
@Korgen，我可以分享日志。部分惹眼 - 这只是我的错误... –