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Unverified50% confidenceFactExact time

Java Spring Boot等主流后端框架的代码通常按三层架构组织:Controller层接收HTTP请求并返回响应,Service层封装业务逻辑,Mapper层(DAO层)负责与数据库交互

1
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50%
Confidence
Long-term
Relevance
8/18/2026
First Seen

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