spring boot中使用atomikos实现分布式事务

在Spring Boot中使用Atomikos实现分布式事务：

1. 添加依赖

在你的pom.xml文件中添加Atomikos和Spring Boot的依赖。

<dependency>
    <groupId>org.atomikos</groupId>
    <artifactId>atomikos-integration-spring-boot-starter</artifactId>
    <version>3.8.0</version>
</dependency>

2. 配置Atomikos

在application.properties或application.yml文件中配置Atomikos。

spring.jta.atomikos.connectionfactory.borrow-connection-timeout=30000
spring.jta.atomikos.connectionfactory.testquery=SELECT 1
spring.jta.atomikos.connectionfactory.is-test-query=true
spring.jta.atomikos.connectionfactory.test-query-interval=30000
spring.jta.atomikos.connectionfactory.user=your_username
spring.jta.atomikos.connectionfactory.password=your_password
spring.jta.atomikos.connectionfactory.protocol=your_protocol
spring.jta.atomikos.connectionfactory.host=your_host
spring.jta.atomikos.connectionfactory.port=your_port

3. 创建事务管理器

创建一个事务管理器，并使用Atomikos的UserTransaction和TransactionManager实现。

@Bean
public PlatformTransactionManager transactionManager() {
    JtaTransactionManager transactionManager = new JtaTransactionManager();
    transactionManager.setTransactionManager(atomikosTransactionManager());
    transactionManager.setUserTransaction(atomikosUserTransaction());
    return transactionManager;
}

4. 使用事务管理器

在你的服务或组件中，注入事务管理器并使用它来管理事务。

@Service
public class MyService {
    private final PlatformTransactionManager transactionManager;
    private final MyRepository myRepository;
    public MyService(PlatformTransactionManager transactionManager, MyRepository myRepository) {
        this.transactionManager = transactionManager;
        this.myRepository = myRepository;
    }
    @Transactional
    public void doSomething() {
        try (TransactionTemplate transactionTemplate = new TransactionTemplate(transactionManager)) {
            transactionTemplate.execute(new TransactionCallbackWithoutResult() {
                @Override
                protected void doInTransactionWithoutResult(TransactionStatus status) {
                    myRepository.save(new MyEntity());
                }
            });
        } catch (Exception e) {
            // handle exception here if needed
        }
    }
}