新增菜品------获取菜品分类

 /**
     * 根据type(菜品1或套餐2)查询对应的菜品分类
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<Category>();
        //添加条件
        queryWrapper.eq(category.getType()!=null, Category::getType, category.getType());
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        //查询
        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);
    }