@Mapper 和 @MapperScan 区别

1、@Mapper : 为了使接口被其他类引用,需要使用@Mapper注解,这种方式要求每一个mapper类都需要添加此注解,麻烦。

package com.example.demo.dao;
import com.example.demo.pojo.User;
/**
 * 〈一句话功能简述〉<br> 
 * 〈〉
 *
 * @author 丶Zh1Guo
 * @create 2018/11/21
 * @since 1.0.0
 */
//@Mapper
public interface UserDAO {
    User getUserById(int id);
}

2、@MapperScan

package com.example.demo;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@ComponentScan("com.example.demo")
@MapperScan("com.example.demo.dao")
@SpringBootApplication
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}
原文地址:https://www.cnblogs.com/wangzh1guo/p/9998945.html