Spring Boot 延迟 Flyway 初始化循环依赖 [英] Spring Boot deferred Flyway inizialization circular dependency

问题描述

我需要在 Hibernate 生成所有模式表后执行 Flyway 迁移.在迁移到 Spring Boot 2.2 之前，这段代码运行良好

I need to execute Flyway migration after Hibernate generates all the schema table. Before migrating to Spring Boot 2.2 this code worked fine

@Configuration
public class BaseFlywayConfiguration {

    /**
     * Override default flyway initializer to do nothing
     */
    @Bean
    FlywayMigrationInitializer flywayInitializer(Flyway flyway) {
        return new FlywayMigrationInitializer(flyway, (f) -> {
        });
    }

    /**
     * Create a second flyway initializer to run after jpa has created the schema
     */
    @Bean
    @DependsOn("transactionManager")
    FlywayMigrationInitializer delayedFlywayInitializer(Flyway flyway) {
        return new FlywayMigrationInitializer(flyway, null);
    }

}

不幸的是，在迁移到 Spring Boot 2.2.0 后，我收到了一个与循环依赖相关的异常

Unfortunately after migrating to Spring Boot 2.2.0 I receive an Exception related to a circular dependency

这是日志:

应用上下文中部分bean的依赖形成一个循环:

The dependencies of some of the beans in the application context form a cycle:

┌──────┐|类路径资源中定义的transactionManager [com/myFleetSolutions/myFleet/organization/configuration/jpa/JPAConfigurationDev.class]└──────┘

┌─────┐ | transactionManager defined in class path resource [com/myFleetSolutions/myFleet/organization/configuration/jpa/JPAConfigurationDev.class] └─────┘

我该如何解决?

推荐答案

我只是在 @SpringBootApplication 类中注入了 Flyway bean，并在 CommandLineRunner init 方法中执行了 flyway.migrate().它在系统启动结束时执行并且工作正常

I've simply Injected Flyway bean in the @SpringBootApplication class, and executed flyway.migrate() in the CommandLineRunner init method. It's executed at the end of the system startup and works fine

谢谢

安东尼奥

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