Spring Boot扫描mapper接口类的两种实现方式

本是古典何须时尚 2023-01-10 10:08 202阅读 0赞

# 1、方式一：使用注解@Mapper #

在所有**mapper**接口上添加注解@Mapper；Spring boot启动注解自动扫描。

![2021012314243598.png][]

以下是Spring Boot缺省扫描配置，自动开启自动扫描，即启动就会自动扫描所有自定义bean

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# 2、方式二：使用注解@MapperScan #

在springboot启动类上添加注解@MapperScan，标注dao所在包路径。一劳永逸，推荐使用！！

import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    import springfox.documentation.swagger2.annotations.EnableSwagger2;
    
    @EnableSwagger2
    @EnableDiscoveryClient
    @MapperScan(basePackages = {"com.mp.service.provider.dao"})
    @SpringBootApplication
    public class MpServiceProviderApplication {
        public static void main(String[] args) {
            SpringApplication.run(MpServiceProviderApplication .class, args);
        }
    }

[2021012314243598.png]: /images/20221119/823e871f050a42eca9bd862302df0cb2.png
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