<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <tx:annotation-driven transaction-manager="transactionManager" />
@Repository
public class UserDao {
public User getUser() {
// query user from user table
return queryObject("select * from user order by id desc limit 1");
}
}
@Service
@Transactional
public class SecurityService {
@Autowired
private UserDao userDao;
public void checkUserInfo() {
while(true) {
User user = userDao.getUser();
if(user != null && "Tom".equals(user.getName()) {
System.out.println("Tom is here");
break;
}
}
}
}
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