带有JPA示例代码和配置的Spring statemmachine

Question

我正在尝试使用像MySQL这样的RDBMS来持久化spring状态机。例如，我需要存储和检索由spring状态机控制的实体的状态。我似乎找不到合适的文档或任何具有整个配置的示例代码。我所能找到的只是一些示例代码片段，它们并没有显示持久化所需要做的一切。谁有演示如何在RDBMS上配置spring状态机的示例代码?

感谢

Answer 1

您看过持久化配方吗?这也许有用。

我不能分享我的代码，但这里是你可能需要的

1 -依赖关系

implementation("org.springframework.boot:spring-boot-starter-data-jpa")
implementation("org.springframework.boot:spring-boot-starter-validation")
implementation("org.springframework.statemachine:spring-statemachine-autoconfigure")
implementation("org.springframework.statemachine:spring-statemachine-data-jpa")
implementation("org.springframework.statemachine:spring-statemachine-starter")

2 -代码2.1机器配置(我使用硬编码工厂策略)

@Configuration
@EnableStateMachineFactory(contextEvents = false)
@RequiredArgsConstructor
public class StateMachineConfig
extends EnumStateMachineConfigurerAdapter<S,E >

2.2持久化配置

@Configuration
public class StateMachinePersistenceConfiguration {
@Bean
public StateMachineRuntimePersister<S, E, String> stateMachineRuntimePersister(
final JpaStateMachineRepository jpaStateMachineRepository) {
return new JpaPersistingStateMachineInterceptor<>(jpaStateMachineRepository);
}
}

2.3服务配置(允许检索机器)

@RequiredArgsConstructor
@Configuration
public class StateMachineServiceConfig {
private final StateMachineFactory<S, E> stateMachineFactory;
private final StateMachineRuntimePersister<S, E, String> stateMachineRuntimePersister;
@Bean
public StateMachineService<S, E> stateMachineService() {
return new DefaultStateMachineService<>(stateMachineFactory, stateMachineRuntimePersister);
}
}

框架应该创建一个状态机表以允许您持久化状态机