SpringBoot之事务处理（K）详解编程语言

创建对应的service

JpaService.java

package cn.wuyang.springboot.service; 
 
import java.util.List; 
 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Service; 
import org.springframework.transaction.annotation.Transactional; 
 
import cn.wuyang.springboot.dao.JpaDao; 
import cn.wuyang.springboot.entity.Jpa; 
 
@Service 
public class JpaService { 
 
    @Autowired 
    private JpaDao jpaDao; 
 
    //打开事务 
    @Transactional 
    public List<Jpa> jpaList(){ 
        return jpaDao.findAll(); 
    } 
}