Spring Cloud整合Seata实现TCC分布式事务模式案例（含源码）

@LocalTCC
public class BusinessService implements BusinessServiceAPI {
 
    @Autowired
    private AccountService accountService;
 
    @Override
    @TwoPhaseBusinessAction(name = "BusinessAction", commitMethod = "commit", rollbackMethod = "rollback")
    public boolean prepare(BusinessActionContext actionContext, String businessAction, int amount) {
        return accountService.debit(businessAction, amount);
    }
 
    public boolean commit(BusinessActionContext actionContext) {
        return accountService.debit(actionContext.getActionName(), 1);
    }
 
    public boolean rollback(BusinessActionContext actionContext) {
        return accountService.credit(actionContext.getActionName(), 1);
    }
}
 
@Service
public class AccountService {
 
    @GlobalTransactional
    public boolean debit(String actionName, int amount) {
        // 模拟扣款操作
        System.out.println(actionName + " 扣款 " + amount + " 成功");
        return true;
    }
 
    public boolean credit(String actionName, int amount) {
        // 模拟补偿操作
        System.out.println(actionName + " 补偿  " + amount + " 成功");
        return true;
    }
}

这个代码示例展示了如何在Spring Cloud应用中使用Seata实现TCC模式的分布式事务。BusinessService类通过@LocalTCC注解标记为TCC服务类。该类中的prepare方法用于准备销售业务，并且通过@TwoPhaseBusinessAction注解指定了该操作是一个两阶段的业务动作。commit和rollback方法分别用于提交和回滚业务。AccountService中的debit和credit方法分别用于模拟扣款和补偿操作。这个例子简单明了地展示了TCC模式在实际业务中的应用。