springboot+mybatis集成分页功能

@SpringBootApplication
@MapperScan("com.example.demo.mapper")
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

}

public interface IOrderMastService {

    ShopOrderMast getOrderMastByOrderId(String orderId);

    PageInfo<ShopOrderMast> selectOrderList(OrderQueryObject   queryObject);

}

@Service
public class OrderMastServiceImpl implements IOrderMastService{
    private final static Logger logger =  LoggerFactory.getLogger(OrderMastServiceImpl.class);
    @Autowired
    private ShopOrderMastMapper orderMastMapper;
    @Override
    public ShopOrderMast getOrderMastByOrderId(String orderId) {
        return orderMastMapper.findOrderByOrderId(orderId);
    }

    @Override
    public PageInfo<ShopOrderMast> selectOrderList(OrderQueryObject queryObject) {
        logger.info("请求参数:{}", JSON.toJSONString(queryObject));
        PageHelper.startPage(queryObject.getCurrentNum(),queryObject.getPageSize());
        List<ShopOrderMast> list= orderMastMapper.selectOrderList(queryObject);
        logger.info("返回值:{}", JSON.toJSONString(list));
        return new PageInfo<>(list);
    }
}

//mapper接口

@Repository
public interface ShopOrderMastMapper {
    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table shop_order_mast
     *
     * @mbggenerated
     */
    int deleteByPrimaryKey(Long codId);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table shop_order_mast
     *
     * @mbggenerated
     */
    int insert(ShopOrderMast record);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table shop_order_mast
     *
     * @mbggenerated
     */
    int insertSelective(ShopOrderMast record);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table shop_order_mast
     *
     * @mbggenerated
     */
    ShopOrderMast selectByPrimaryKey(Long codId);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table shop_order_mast
     *
     * @mbggenerated
     */
    int updateByPrimaryKeySelective(ShopOrderMast record);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table shop_order_mast
     *
     * @mbggenerated
     */
    int updateByPrimaryKey(ShopOrderMast record);

    ShopOrderMast findOrderByOrderId(String orderId);

    List<ShopOrderMast> selectOrderList(OrderQueryObject queryObject);
}

//controller

@Controller
@Api(value ="订单",description ="订单相关接口" ) //API注解是用来对类进行描述
public class ShopOrderController {

    private final static Logger logger =  LoggerFactory.getLogger(ShopOrderController.class);
    @Autowired
    private IOrderMastService orderMastService;

    @RequestMapping(value = "shop/order/{orderId}",method = RequestMethod.GET)
    @ResponseBody
    @ApiOperation(value ="订单查询",notes ="通过订单号查询对应的订单",httpMethod ="POST")//对该方法进行说明
    public ShopOrderMast findOrderMastByOrderId(@PathVariable("orderId") String orderId){
        return orderMastService.getOrderMastByOrderId(orderId);
    }

    @RequestMapping(value = "shop/order/list",method = RequestMethod.POST)
    @ResponseBody
    @ApiOperation(value ="订单列表",notes ="订单列表分页查询",httpMethod ="POST")//对该方法进行说明
    public PageInfo<ShopOrderMast> findOrderMastByOrderId(@RequestBody OrderQueryObject queryObject){
        return orderMastService.selectOrderList(queryObject);
    }
}

mapper.xml(提供部分信息)

<select id="findOrderByOrderId" resultMap="BaseResultMap">
  select * from shop_order_mast WHERE  cod_order_id=#{orderId};
</select>
<select id="selectOrderList" resultMap="BaseResultMap">
  select * from shop_order_mast WHERE  flg_status_order=#{orderStatu} ORDER  by dat_order_submit DESC
</select>

//分页请求参数对象

public class QueryObject {
    @ApiModelProperty("当前页")
    private int currentNum=1;
    @ApiModelProperty("总页数")
    private int pageSize=10;

    public int getCurrentNum() {
        return currentNum;
    }

    public void setCurrentNum(int currentNum) {
        this.currentNum = currentNum;
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }
}

public class OrderQueryObject extends QueryObject {
    @ApiModelProperty("订单状态")
    private int orderStatu;

    public int getOrderStatu() {
        return orderStatu;
    }

    public void setOrderStatu(int orderStatu) {
        this.orderStatu = orderStatu;
    }
}

分页实现总结: