查询所有分类后端完成

bookshelfplus/src/main/java/plus/bookshelf/Controller/Controller/CategoryController.java

@@ -17,6 +17,9 @@ import plus.bookshelf.Service.Model.CategoryModel;
 import plus.bookshelf.Service.Service.BookService;
 import plus.bookshelf.Service.Service.CategoryService;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Api(tags = "书籍分类信息")
 @Controller("category")
 @RequestMapping("/category")
@@ -25,7 +28,7 @@ public class CategoryController extends BaseController {
     @Autowired
     CategoryService categoryService;
 
-    @ApiOperation(value = "获取书籍分类", notes = "获取书籍分类")
+    @ApiOperation(value = "获取指定分类", notes = "获取指定的书籍分类")
     @RequestMapping(value = "get", method = {RequestMethod.GET})
     @ResponseBody
     public CommonReturnType get(@RequestParam(value = "id") Integer id) {
@@ -38,6 +41,19 @@ public class CategoryController extends BaseController {
         return CommonReturnType.create(categoryVO);
     }
 
+    @ApiOperation(value = "获取所有分类", notes = "获取所有的书籍分类")
+    @RequestMapping(value = "list", method = {RequestMethod.GET})
+    @ResponseBody
+    public CommonReturnType getAll() {
+        List<CategoryModel> categoryModels = categoryService.getAllCategorys();
+        List<CategoryVO> categoryVOS = new ArrayList<>();
+        for (CategoryModel categoryModel : categoryModels) {
+            CategoryVO categoryVO = convertFromModel(categoryModel);
+            categoryVOS.add(categoryVO);
+        }
+        return CommonReturnType.create(categoryVOS);
+    }
+
     private CategoryVO convertFromModel(CategoryModel categoryModel) {
         if (categoryModel == null) {
             return null;

bookshelfplus/src/main/java/plus/bookshelf/Dao/Mapper/CategoryDOMapper.java

@@ -62,4 +62,6 @@ public interface CategoryDOMapper {
     int updateByPrimaryKey(CategoryDO record);
 
     CategoryDO[] selectChildrenByCategoryId(Integer id);
+
+    CategoryDO[] selectAll();
 }

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

@@ -7,12 +7,21 @@ import plus.bookshelf.Dao.Mapper.CategoryDOMapper;
 import plus.bookshelf.Service.Model.CategoryModel;
 import plus.bookshelf.Service.Service.CategoryService;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Service
 public class CategoryServiceImpl implements CategoryService {
 
     @Autowired
     private CategoryDOMapper categoryDOMapper;
 
+    /**
+     * 获取指定分类详情
+     *
+     * @param id
+     * @return
+     */
     @Override
     public CategoryModel getCategoryById(Integer id) {
         CategoryDO categoryDO = categoryDOMapper.selectByPrimaryKey(id);
@@ -31,6 +40,23 @@ public class CategoryServiceImpl implements CategoryService {
         return categoryModel;
     }
 
+    /**
+     * 取得所有分类
+     *
+     * @return
+     */
+    @Override
+    public List<CategoryModel> getAllCategorys() {
+        CategoryDO[] categoryDOS = categoryDOMapper.selectAll();
+        List<CategoryModel> categoryModels = new ArrayList<>();
+
+        for (CategoryDO categoryDO : categoryDOS) {
+            CategoryModel categoryModel = convertFromDataObject(categoryDO);
+            categoryModels.add(categoryModel);
+        }
+        return categoryModels;
+    }
+
     // 转换时不转换父亲与儿子，否则会陷入死循环
     private CategoryModel convertFromDataObject(CategoryDO categoryDO) {
         if (categoryDO == null) {

bookshelfplus/src/main/java/plus/bookshelf/Service/Service/CategoryService.java

@@ -2,6 +2,8 @@ package plus.bookshelf.Service.Service;
 
 import plus.bookshelf.Service.Model.CategoryModel;
 
+import java.util.List;
+
 public interface CategoryService {
     /**
      * 通过分类Id获取分类
@@ -10,4 +12,11 @@ public interface CategoryService {
      * @return
      */
     CategoryModel getCategoryById(Integer id);
+
+    /**
+     * 获取所有的分类列表
+     *
+     * @return
+     */
+    List<CategoryModel> getAllCategorys();
 }