问不能在龙目岛上使用Slf4j

EN

package com.example.clement.recipeproject.bootstrap;

import com.example.clement.recipeproject.domain.*;
import com.example.clement.recipeproject.repositories.CategoryRepository;
import com.example.clement.recipeproject.repositories.RecipeRepository;
import com.example.clement.recipeproject.repositories.UnitOfMeasureRepository;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;

@Slf4j
@Component
public class DevBootstrap implements ApplicationListener<ContextRefreshedEvent> {

    private CategoryRepository categoryRepository;
    private UnitOfMeasureRepository unitOfMeasureRepository;
    private RecipeRepository recipeRepository;

    public DevBootstrap(CategoryRepository categoryRepository, UnitOfMeasureRepository unitOfMeasureRepository, RecipeRepository recipeRepository) {
        this.categoryRepository = categoryRepository;
        this.unitOfMeasureRepository = unitOfMeasureRepository;
        this.recipeRepository = recipeRepository;
    }

    // returns List<Recipe>
    private List<Recipe> getRecipes() {

        log.debug("I am a debug message");