- 导入mybatis官方starter编写mapper接口。标准@Mapper注解com.liang.webadmin.mapper.AccountMapper编写实现接口类。com.liang.webadmin.service.AccountService编写sql映射文件并绑定mapper接口mybatis/mapper/AccountMapper.xml在application.yaml中指定Mapper配置文件的位置,以及指定全局配置文件的信息 (建议;配置在mybatis.configuration)resourcesapplication.yaml
1.导入mybatis官方starter
org.mybatis.spring.boot mybatis-spring-boot-starter2.1.4
- 编写mapper接口。标准@Mapper注解[^2]com.liang.webadmin.mapper.AccountMapper
import com.liang.webadmin.bean.Account; import org.apache.ibatis.annotations.Mapper; @Mapper public interface AccountMapper { public Account getAcct(Long id); }
- 编写实现接口类。[^3]com.liang.webadmin.service.AccountService
import com.liang.webadmin.bean.Account; import com.liang.webadmin.mapper.AccountMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; @Service public class AccountService { @Autowired AccountMapper accountMapper; public Account getAcctByid(Long id){ return accountMapper.getAcct(id); }; }
- 编写sql映射文件并绑定mapper接口[^4]mybatis/mapper/AccountMapper.xml
select * from user where id=#{id}
- 在application.yaml中指定Mapper配置文件的位置,以及指定全局配置文件的信息 (建议;配置在mybatis.configuration)[^5]resourcesapplication.yaml
# 配置mybatis规则 mybatis: # config-location: classpath:mybatis/mybatis-config.xml mapper-locations: classpath:mybatis/mapper/*.xml configuration: map-underscore-to-camel-case: true #可以不写全局;配置文件,所有全局配置文件的配置都放在configuration配置项中即可
欢迎分享,转载请注明来源:内存溢出
评论列表(0条)