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67b87fae73
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refactor(service): Service 层重构 - 接口与实现分离
重构以下服务类为接口 + 实现类结构，符合三层架构规范：
- CourseCollectionService → CourseCollectionService + CourseCollectionServiceImpl
- CourseLessonService → CourseLessonService + CourseLessonServiceImpl
- ResourceLibraryService → ResourceLibraryService + ResourceLibraryServiceImpl
- ThemeService → ThemeService + ThemeServiceImpl
变更详情:
- 接口继承 IService<Entity>，定义业务方法签名
- 实现类继承 ServiceImpl 并实现对应接口，添加 @Override 注解
- CourseCollectionServiceImpl 注入 CourseLessonService 接口依赖
- FileStorageService 保持原结构（纯工具类无需拆分）
验证:
- mvn compile -DskipTests 编译通过
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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2026-03-19 15:08:01 +08:00 |
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