refactor(menu): 优化菜单相关接口并重构代码

- 移除 MenuController 中的 menu 方法- 修改 MenuService 接口中的方法名称，简化为 getTree- 在 MenuServiceImpl 中添加事务注解并优化查询逻辑
-增加对"all"名称的特殊处理，以适应不同场景需求

src/main/java/com/zsc/edu/gateway/modules/system/controller/MenuController.java

@@ -23,21 +23,6 @@ public class MenuController {
 
     private final MenuService service;
 
-
-    /**
-     * 获取菜单树
-     */
-    @GetMapping
-    public List<MenuVo> menu(@AuthenticationPrincipal UserDetailsImpl userDetails) {
-        List<MenuVo> list = service.selectByUserId(userDetails.getId(), Menu.Type.PAGE).stream().map(MenuVo::new).toList();
-        return TreeUtil.makeTree(
-                list,
-                x -> x.getPid() == null,
-                (x, y) -> x.getId().equals(y.getPid()),
-                MenuVo::setChildren
-        );
-    }
-
     /**
      * 新建菜单
      */
@@ -67,6 +52,6 @@ public class MenuController {
      */
     @GetMapping("/tree")
     public List<MenuVo> tree(@AuthenticationPrincipal UserDetailsImpl userDetails, @RequestParam String name) {
-        return service.getTreeByName(userDetails, name);
+        return service.getTree(userDetails, name);
     }
 }

src/main/java/com/zsc/edu/gateway/modules/system/service/MenuService.java

@@ -23,5 +23,5 @@ public interface MenuService extends IService<Menu> {
 
     Boolean delete(Long id);
 
-    List<MenuVo> getTreeByName(UserDetailsImpl userDetails, String name);
+    List<MenuVo> getTree(UserDetailsImpl userDetails, String name);
 }

src/main/java/com/zsc/edu/gateway/modules/system/service/impl/MenuServiceImpl.java

@@ -15,6 +15,7 @@ import com.zsc.edu.gateway.modules.system.utils.TreeUtil;
 import com.zsc.edu.gateway.modules.system.vo.MenuVo;
 import lombok.AllArgsConstructor;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -39,11 +40,12 @@ public class MenuServiceImpl extends ServiceImpl<MenuRepository, Menu> implement
     }
 
     @Override
+    @Transactional
     public Menu create(MenuDto dto) {
-        if (baseMapper.selectList(new LambdaQueryWrapper<Menu>().eq(Menu::getName, dto.getName())) != null) {
+        if (baseMapper.exists(new LambdaQueryWrapper<Menu>().eq(Menu::getName, dto.getName()))) {
             throw new ConstraintException("该菜单名已存在!请检查输入表单是否出错!");
         }
-        if (baseMapper.selectList(new LambdaQueryWrapper<Menu>().eq(Menu::getPermissions, dto.getPermissions())) != null) {
+        if (baseMapper.exists(new LambdaQueryWrapper<Menu>().eq(Menu::getPermissions, dto.getPermissions()))) {
             throw new ConstraintException("该权限已存在!请检查输入表单是否出错!");
         }
         Menu menu = mapper.toEntity(dto);
@@ -52,6 +54,7 @@ public class MenuServiceImpl extends ServiceImpl<MenuRepository, Menu> implement
     }
 
     @Override
+    @Transactional
     public Menu update(MenuDto dto, Long id) {
         Menu menu = baseMapper.selectById(id);
         if (menu == null) {
@@ -70,7 +73,7 @@ public class MenuServiceImpl extends ServiceImpl<MenuRepository, Menu> implement
     }
 
     @Override
-    public List<MenuVo> getTreeByName(UserDetailsImpl userDetails, String name) {
+    public List<MenuVo> getTree(UserDetailsImpl userDetails, String name) {
         List<MenuVo> menuVos = selectByUserId(userDetails.getId(), Menu.Type.PAGE).stream().map(MenuVo::new).toList();
 
         List<MenuVo> menuTrees = TreeUtil.makeTree(
@@ -79,7 +82,9 @@ public class MenuServiceImpl extends ServiceImpl<MenuRepository, Menu> implement
                 (parent, child) -> parent.getId().equals(child.getPid()),
                 MenuVo::setChildren
         );
-
+        if (Objects.equals(name, "all")) {
+            return menuTrees;
+        }
         if (Objects.nonNull(name)) {
             Menu menu = baseMapper.selectOne(new LambdaQueryWrapper<Menu>().eq(Menu::getName, name));
             if (menu == null) {