Mybitis+springMVC 套路

springMVC:确保能够扫描到所有注解

<!-- 使用Annotation自动注册Bean,只扫描@Controller -->
    <context:component-scan base-package="com.jeeplus" use-default-filters="false"><!-- base-package 如果多个,用“,”分隔 -->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

Controller:标注@Controller 并在service标注@Autowired

@Controller 

public class ApplyRegisterController extends BaseController{

    private static final long serialVersionUID = 1L;

    @Autowired
    private DepositService<Depositer> depositService;
}

Service:标注@Service  @Transactional  并在方法上标注@Override

@Service
@Transactional
public class DepositService<T> extends CrudService<DepositDao,Depositer> {

    @Override
    public Depositer get(String id) {
        return super.get(id);
    }

Dao:标注@MyBatisDao

@MyBatisDao
public interface DepositDao extends CrudDao<Depositer>{
    
}

Mapper: 设置dao层路径

<mapper namespace="com.jeeplus.modules.loan.dao.DepositDao"></mapper>

 

总结:

  注解路线 :@Controller------>@Service-------->@MyBatisDao

报错:

  1、检查注解是否引用错误(一般是启动报错或者运行时报空指针);

  2、Service层一般需要标注@Transactional 开启事务(一般是运行报错);

posted on 2017-11-17 16:57  instr  阅读(314)  评论(0编辑  收藏  举报

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