66 lines
3.1 KiB
Markdown
66 lines
3.1 KiB
Markdown
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# 开发日志 - 2026-03-19
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## Service 层重构
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### 背景
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根据项目统一开发规范要求，Service 层应采用 **接口 + 实现类** 的结构：
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```
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service/
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├── XxxService.java ← 接口，继承 IService<Entity>
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└── impl/
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└── XxxServiceImpl.java ← 实现类，继承 ServiceImpl 并实现接口
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```
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### 重构内容
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将以下 5 个服务类从实现类拆分为接口 + 实现类结构：
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| 服务类 | 接口文件 | 实现类文件 | 状态 |
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|--------|---------|-----------|------|
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| `ThemeService` | `service/ThemeService.java` | `service/impl/ThemeServiceImpl.java` | ✅ |
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| `ResourceLibraryService` | `service/ResourceLibraryService.java` | `service/impl/ResourceLibraryServiceImpl.java` | ✅ |
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| `CourseLessonService` | `service/CourseLessonService.java` | `service/impl/CourseLessonServiceImpl.java` | ✅ |
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| `CourseCollectionService` | `service/CourseCollectionService.java` | `service/impl/CourseCollectionServiceImpl.java` | ✅ |
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| `FileStorageService` | 无需拆分（纯工具类） | 保持原结构 | ✅ |
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### 重构详情
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#### 1. ThemeService
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- **接口方法**：`findAll()`, `findById()`, `create()`, `update()`, `delete()`, `reorder()`
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- **实现类**：`ThemeServiceImpl` 继承 `ServiceImpl<ThemeMapper, Theme>` 并实现 `ThemeService` 接口
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#### 2. ResourceLibraryService
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- **接口方法**：`findAllLibraries()`, `findLibraryById()`, `createLibrary()`, `updateLibrary()`, `deleteLibrary()`, `findAllItems()`, `findItemById()`, `createItem()`, `updateItem()`, `deleteItem()`, `batchDeleteItems()`, `getStats()`
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- **实现类**：`ResourceLibraryServiceImpl` 继承 `ServiceImpl<ResourceLibraryMapper, ResourceLibrary>` 并实现 `ResourceLibraryService` 接口
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#### 3. CourseLessonService
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- **接口方法**：`findByCourseId()`, `findById()`, `findByType()`, `create()`, `update()`, `delete()`, `reorder()`, `findSteps()`, `createStep()`, `updateStep()`, `deleteStep()`, `reorderSteps()`, `findCourseLessonsForTeacher()`
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- **实现类**：`CourseLessonServiceImpl` 继承 `ServiceImpl<CourseLessonMapper, CourseLesson>` 并实现 `CourseLessonService` 接口
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#### 4. CourseCollectionService
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- **接口方法**：`findTenantCollections()`, `getCollectionDetail()`, `pageCollections()`, `getPackagesByCollection()`, `createCollection()`, `setCollectionPackages()`, `updateCollection()`, `deleteCollection()`, `publishCollection()`, `archiveCollection()`, `republishCollection()`, `withdrawCollection()`, `submitCollection()`, `rejectCollection()`, `renewTenantCollection()`
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- **实现类**：`CourseCollectionServiceImpl` 继承 `ServiceImpl<CourseCollectionMapper, CourseCollection>` 并实现 `CourseCollectionService` 接口
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- **依赖注入**：注入 `CourseLessonService` 用于查询课程环节
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### 验证结果
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```bash
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export JAVA_HOME="/f/Java/jdk-17"
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mvn compile -DskipTests
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```
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**编译结果**：✅ BUILD SUCCESS
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### 影响范围
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- Controller 层引用保持不变（Spring 自动注入接口实现）
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- 其他服务层调用保持不变
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- 无数据库变更
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- 无 API 变更
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### 备注
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- `FileStorageService` 是纯工具类服务，不涉及数据库操作，无需继承 `IService`，保持当前结构即可
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