Zzzz
77 lines
2.9 KiB
Markdown
77 lines
2.9 KiB
Markdown
# Backend Development Guidelines
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> Backend conventions for the JSP + Servlet + MySQL library-management system.
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---
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## Overview
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The developer has established the backend architecture as a B/S Java web
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application using JSP + Servlet, MySQL, Tomcat, and IDEA. The initial scaffold
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now exists under `src/main/`; remaining module names below describe conventions
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for future feature work.
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Use a layered design:
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```
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JSP/CSS presentation -> Servlet controller -> Service/business -> DAO -> MySQL
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```
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Controllers handle request dispatch, parameter validation, and result return.
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Services handle business workflows and permission checks. DAOs perform database
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CRUD. MySQL stores books, categories, readers, borrowing records,
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administrators, roles/permissions, and system logs.
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---
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## Guidelines Index
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| Guide | Description | Status |
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|-------|-------------|--------|
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| [Directory Structure](./directory-structure.md) | Servlet, service, DAO, entity, and config organization | Project decision documented |
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| [Database Guidelines](./database-guidelines.md) | MySQL tables, DAO CRUD, keys, and transactions | Project decision documented |
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| [Error Handling](./error-handling.md) | Servlet validation, service failures, and safe responses | Project decision documented |
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| [Quality Guidelines](./quality-guidelines.md) | Layer boundaries and review constraints | Project decision documented |
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| [Logging Guidelines](./logging-guidelines.md) | System logs, key operations, and exception tracing | Project decision documented |
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---
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## Pre-Development Checklist
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Before backend implementation, read:
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- `.trellis/spec/backend/directory-structure.md`
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- `.trellis/spec/backend/database-guidelines.md`
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- `.trellis/spec/backend/error-handling.md`
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- `.trellis/spec/backend/logging-guidelines.md`
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- `.trellis/spec/backend/quality-guidelines.md`
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- `.trellis/tasks/archive/2026-04/00-bootstrap-guidelines/research/project-requirements.md`
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---
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## Core Backend Modules
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- Login and permission management for administrator, librarian, and reader
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roles.
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- Book information management for create, update, delete, category maintenance,
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and inventory status.
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- Reader information management for profiles, borrowing eligibility, and
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contact information.
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- Borrowing and return management for borrow, return, renew, overdue handling,
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and automatic collection status updates.
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- Book search and statistics for combined title, author, category, and ID
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search, borrowing rankings, inventory reports, and overdue reports.
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- System maintenance and logs for key operation logs, data backup support, and
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exception tracing.
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## Evidence
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- `.trellis/tasks/archive/2026-04/00-bootstrap-guidelines/research/repo-scan.md`
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records the initial pre-scaffold repo scan.
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- `.trellis/tasks/archive/2026-04/00-bootstrap-guidelines/research/project-requirements.md`
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records the developer-provided stack, architecture, modules, and data model.
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---
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**Language**: All documentation should be written in **English**.
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