Data Access
参考文档的这一部分涉及数据访问以及数据访问层与业务层或服务层之间的交互。
This part of the reference documentation is concerned with data access and the interaction between the data access layer and the business or service layer.
Spring 的全面事务管理支持以一定详细程度进行介绍，随后对 Spring 框架与其集成的各种数据访问框架和技术进行全面介绍。
Spring’s comprehensive transaction management support is covered in some detail, followed by thorough coverage of the various data access frameworks and technologies with which the Spring Framework integrates.