使用注解实现applicationContext.xml中的内容

package com.hh.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

/**
 * @author hh
 * @version 1.0
 * @DATE 2023-09-07 12:14:10
 */
@Configuration
@ComponentScan("com.hh")
public class SpringConfig {
}

import com.hh.config.SpringConfig;
import com.hh.dao.BookDao;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;

/**
 * @author hh
 * @version 1.0
 * @DATE 2023-09-07 12:14:54
 */
public class App2 {
    public static void main(String[] args) {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(SpringConfig.class);
        BookDao bean = context.getBean(BookDao.class);
        bean.save();
    }
}