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The article explains why clear application layering—covering controller, service, manager, and DAO levels—is essential for maintainable backend code, reviews Alibaba's recommended layer structure, proposes an optimized layering model, and discusses domain model conversions to avoid excessive object transformations.
The article discusses the importance of clear application layering, outlines Alibaba’s multi‑layer architecture, proposes an optimized layering model, explains domain object types (DO, DTO, BO, AO, VO, Query) and offers practical guidelines to improve code maintainability and reuse in backend development.
The article explains why clear application layering—covering controller, service, manager, and DAO levels—is essential for maintainable backend code, describes Alibaba's recommended layer structure, proposes an optimized layering model, and outlines domain object conventions such as DO, DTO, BO, AO, VO, and Query.
This article explains common misconceptions about application layering, outlines essential principles for maintainable layers, details Alibaba's multi‑layer architecture, proposes optimized layering with service and manager responsibilities, discusses domain model conversions, and concludes with practical guidance for clear, reusable backend design.
The article explains the importance of clear application layering, compares Alibaba's recommended multi‑layer architecture with practical optimizations, describes each layer’s responsibilities, discusses domain model transformations, and offers guidelines for maintaining clean, reusable, and maintainable backend code.