1.在启动类Application中添加注解@EnableTransactionManagement
import tk.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.transaction.annotation.EnableTransactionManagement; @SpringBootApplication @EnableTransactionManagement //开启书屋管理注解模式 最新的版本可以省略 @MapperScan("com.xz.springboot.mapper") //扫描该包下所有的接口并为该接口生成实现类 public class Springboot01Application { public static void main(String[] args) { SpringApplication.run(Springboot01Application.class, args); } }
2.在业务层添加@Transactional
import com.xz.springboot.bean.User; import com.xz.springboot.mapper.UserMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.List; @Service public class UserService { @Autowired private UserMapper userMapper; public List<User> queryAll(){ System.out.println("热部署"); return userMapper.findAll(); } @Transactional public void deleteById(Integer id) { userMapper.deleteById(id); // int c=10/0; } }
原文地址:https://www.cnblogs.com/sitian2050/p/11824850.html
时间: 2024-10-30 15:51:17