1.orderMaster（订单主表，买家信息），orderDetail（订单详情表，商品信息）

（数据库字段映射成实体类方法待完善）

枚举解决订单状态：OrderStatusEnum

@Getter
public enum OrderStatusEnum {
    NEW(0, "新下单"),
    FINISHED(1, "完成"),
    CANCEL(2, "已取消");
    private Integer code;
    private String msg;

    OrderStatusEnum(Integer code, String msg) {
        this.code = code;
        this.msg = msg;
    }

枚举解决支付状态：PayStatusEnum

@Getter
public enum PayStatusEnum {
    WAITE(0, "等待支付"),
    SUCCESS(1, "支付成功");
    private Integer code;
    private String msg;

    PayStatusEnum(Integer code, String msg) {
        this.code = code;
        this.msg = msg;
    }

2.orderMasterDao主表接口：

public interface OrderMasterRepository extends JpaRepository<OrderMaster, String> {
    //分页查询根据买家openid,主订单
    Page<OrderMaster> findByBuyerOpenid(String buyerOpenId, Pageable pageable);
}

3.orderDetaDao详情表接口：

public interface OrderDetailReponsitory extends JpaRepository<OrderDetail, String> {
    List<OrderDetail> findByOrderId(String orderId);
}