Flyway 没有正确清理数据库，执行了两次迁移文件
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【中文标题】Flyway 没有正确清理数据库，执行了两次迁移文件【英文标题】：Flyway don't clean database correctly, and execute migration files two times 【发布时间】：2020-12-30 16:21:33 【问题描述】：我使用 flyway 进行迁移数据库，我也使用 FlywayTest 进行集成测试，但是当我使用以下方法创建测试时：
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = APPApplication.class)
@Rollback
@TestExecutionListeners(DependencyInjectionTestExecutionListener.class, FlywayTestExecutionListener.class)
@FlywayTest
public class RolesRepositoryTest
...
我收到此错误：
o.f.c.internal.license.VersionPrinter : Flyway Community Edition 6.0.8 by Redgate
com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
o.f.c.internal.database.DatabaseFactory : Database: jdbc:h2:mem:testdb (H2 1.4)
o.f.c.internal.database.base.Database : Flyway upgrade recommended: H2 1.4.200 is newer than this version of Flyway and support has not been tested. The latest supported version of H2 is 1.4.199.
o.f.core.internal.command.DbValidate : Successfully validated 4 migrations (execution time 00:00.055s)
o.f.c.i.s.JdbcTableSchemaHistory : Creating Schema History table "PUBLIC"."flyway_schema_history" ...
o.f.core.internal.command.DbMigrate : Current version of schema "PUBLIC": << Empty Schema >>
o.f.core.internal.command.DbMigrate : Migrating schema "PUBLIC" to version 1 - CREATE FIRST TABLES
o.f.core.internal.command.DbMigrate : Migrating schema "PUBLIC" to version 2 - INSERT ROLES
o.f.core.internal.command.DbMigrate : Migrating schema "PUBLIC" to version 3 - INSERT ADMINS
o.f.core.internal.command.DbMigrate : Migrating schema "PUBLIC" to version 4 - INSERT OTHERS
o.f.core.internal.command.DbMigrate : Successfully applied 4 migrations to schema "PUBLIC" (execution time 00:00.464s)
o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
o.f.test.FlywayTestExecutionListener : ---> Start reset database for 'com.name.project.infrastructure.database.jpa.RolesRepositoryTest'.
o.f.c.internal.database.base.Database : Flyway upgrade recommended: H2 1.4.200 is newer than this version of Flyway and support has not been tested. The latest supported version of H2 is 1.4.199.
o.f.core.internal.command.DbClean : Successfully cleaned schema "PUBLIC" (execution time 00:00.010s)
o.f.c.internal.database.base.Database : Flyway upgrade recommended: H2 1.4.200 is newer than this version of Flyway and support has not been tested. The latest supported version of H2 is 1.4.199.
o.f.core.internal.command.DbValidate : Successfully validated 4 migrations (execution time 00:00.023s)
o.f.c.i.s.JdbcTableSchemaHistory : Creating Schema History table "PUBLIC"."flyway_schema_history" ...
o.f.core.internal.command.DbMigrate : Current version of schema "PUBLIC": << Empty Schema >>
o.f.core.internal.command.DbMigrate : Migrating schema "PUBLIC" to version 1 - CREATE FIRST TABLES
o.f.core.internal.command.DbMigrate : Migration of schema "PUBLIC" to version 1 - CREATE FIRST TABLES failed! Please restore backups and roll back database and code!
o.s.test.context.TestContextManager : Caught exception while invoking 'beforeTestClass' callback on TestExecutionListener [org.flywaydb.test.FlywayTestExecutionListener@797b0699] for test class [class com.name.project.infrastructure.database.jpa.RolesRepositoryTest]
org.flywaydb.core.internal.command.DbMigrate$FlywayMigrateException:
Migration V1__CREATE_FIRST_TABLES.sql failed
--------------------------------------------
SQL State : 42S01
Error Code : 42101
Message : Table "ROLES" already exists; SQL statement:
如果你没有：
---> Start reset database for 'com.name.project.infrastructure.database.jpa.RolesRepositoryTest'.
这来自FlywayTestExecutionListener.class，但它再次迁移数据库。
为什么flyway会这样做，如何阻止它。
更多详情
当我不在我的表中使用模式名称时，问题不会发生。一切正常。
【问题讨论】：
【参考方案1】：如果您在每次测试中都重复使用FlywayTestExecutionListener，那么设置将在每个带有@TestExecutionListeners 的类中执行，即使您使用beforeTestClass。
在 JUnit 中，为一组测试一次性设置资源的一种方法是定义 Rule（用于 Unit 4）和 Extensions（用于 JUnit 5）。
【讨论】：
我遇到了架构问题，当我从脚本中删除架构时，一切正常，谢谢您的回答，也许它可以在将来帮助我以上是关于Flyway 没有正确清理数据库，执行了两次迁移文件的主要内容，如果未能解决你的问题，请参考以下文章