daoimpl层是干什么的
时间: 2023-10-30 22:08:52 浏览: 46
DaoImpl层是Dao层的具体实现类。在开发中,DaoImpl层负责实现Dao层定义的各种数据库操作方法。它与数据库进行交互,执行针对具体表或实体的增删改查操作。DaoImpl层通过调用数据库连接工具类(utils层)建立与数据库的连接,在业务逻辑层(Service层)中被调用,用于对数据库的访问操作。通过将数据库操作封装在DaoImpl层中,可以避免重复性数据库访问开发操作,并降低维护成本。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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