关于同类业务有多个分支的接口设计

同业务多分支的接口设计

场景说明
比如处于下游的系统，在接收源系统的计划订单的时候，因订单的种类比较多，例如：采购订单、销售订单、调拨订单、预售订单等待，如果这些订单的差异比较大，需要分开建多个表，这样后台接口就需要设计一番了。
下面就按步骤直接贴代码案例
第一步: 创建一个接口，定义接收订单的方法;
public interface OrderRepeaterServiceI {

 Result receiveOrder(ReceiveProductOrder order);

}

第二步: 定义接口的实现类，2个@Service
br/>@Service

br/>@Override

System.out.println("采购订单执行分支...");
return null;
}

@Service
public class SaleOrderServiceImpl implements OrderRepeaterServiceI {@Override
br/>@Override

System.out.println("销售订单执行分支...");
return null;
}
}

第三步: 定义分发器服务@Service
br/>@Service

@Resourceprivate OrderRepeaterServiceI purchaseOrderServiceImpl;@Resourceprivate OrderRepeaterServiceI saleOrderServiceImpl;public Result receiveOrder(String orderType, ReceiveProductOrder order) throws Exception {    OrderRepeaterServiceI orderService = null;    switch (orderType) {        case "10" : orderService = purchaseOrderServiceImpl;break;        case "20" : orderService = saleOrderServiceImpl;break;    }    if (orderService != null) {        orderService.receiveOrder(order);    } else {        throw new RuntimeException("订单类型未知异常.");    }    return Result.successWithData("成功");}

}

第四步: 定义接收源系统的控制器@Controller
br/>@Controller

public class OrderApiController {

private static final Logger logger = Logger.getLogger(OrderSapApiController.class);@Resourceprivate OrderRepeaterService orderRepeaterService;@RequestMapping(value = "/testService")@ResponseBodypublic Result testService(String orderType) {    try {        ReceiveProductOrder order = new ReceiveProductOrder();        order.setOrderTypeCode("10");        order.setRelatedDocCode("SO18031610001");        return orderRepeaterService.receiveOrder(orderType, order);    } catch (Exception e) {        logger.error("接口测试异常.");        return Result.errorWithData("测试异常");    }}

}