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1、目前是全局事物,所有操作都是一个connection
2、后续优化调整:
@transaction
控制事物粒度, 配置@transaction,实现全局事物
不配置@transaction,, 默认局部事物(和单条sql执行一样的流程)
2)多数据源管理
实现跨数据源操作