通过书本ID获取所有文件对象信息；前端书籍详情页面直链下载功能完成；后端COS部分功能完善；下载文件设置"Content-Disposition"为"attachment; filename="

bookshelfplus/src/main/java/plus/bookshelf/Service/Impl/FileObjectServiceImpl.java

@@ -36,6 +36,25 @@ public class FileObjectServiceImpl implements FileObjectService {
     @Autowired
     FileServiceImpl fileService;
 
+    /**
+     * 通过书本Id获取关联文件，进而获取所有关联文件对应的文件对象
+     *
+     * @return
+     */
+    @Override
+    public List<FileObjectModel> getFileObjectByBookId(Integer bookId) throws InvocationTargetException, IllegalAccessException {
+
+        FileObjectDO[] fileObjectDOS = fileObjectDOMapper.selectFileObjectByBookId(bookId);
+
+        List<FileObjectModel> fileObjectModels = new ArrayList<>();
+        for (FileObjectDO fileObjectDO : fileObjectDOS) {
+            FileObjectModel fileObjectModel = convertFromDataObject(fileObjectDO);
+            fileObjectModels.add(fileObjectModel);
+        }
+
+        return fileObjectModels;
+    }
+
     /**
      * 列出所有文件对象
      *