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尚品汇-订单接口实现（四十）

news 2025/8/18 3:29:12

目录：

（1）搭建service-order-client模块

（2）微服务之间用户信息传递

（3）在web-all模块中添加接口

（4）下订单 

（1）搭建service-order-client模块

搭建过程同service-cart-client

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.atguigu.gmall</groupId><artifactId>service-client</artifactId><version>1.0</version></parent><version>1.0</version><artifactId>service-order-client</artifactId><packaging>jar</packaging><name>service-order-client</name><description>service-order-client</description></project>

在service-order-client暴露接口

package com.atguigu.gmall.order.client;@FeignClient(value = "service-order", fallback = OrderDegradeFeignClient.class)
public interface OrderFeignClient {@GetMapping("/api/order/auth/trade")Result<Map<String, Object>> trade();
}

package com.atguigu.gmall.order.client.impl;@Component
public class OrderDegradeFeignClient implements OrderFeignClient {@Overridepublic Result<Map<String, Object>> trade() {return Result.fail();}
}

（2）微服务之间用户信息传递

如上图：因为微服务之间并没有传递头文件，所以我们可以定义一个拦截器，每次微服务调用之前都先检查下头文件，将请求的头文件中的用户信息再放入到header中，再调用其他微服务即可。
 

在web-util中添加拦截器

package com.atguigu.gmall.common.interceptor;import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;import javax.servlet.http.HttpServletRequest;@Component
public class FeignInterceptor implements RequestInterceptor {public void apply(RequestTemplate requestTemplate){//  微服务远程调用使用feign ，feign 传递数据的时候，没有。ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();HttpServletRequest request = attributes.getRequest();//  添加header 数据requestTemplate.header("userTempId", request.getHeader("userTempId"));requestTemplate.header("userId", request.getHeader("userId"));}}

配置网关

- id: web-order
  uri: lb://web-all
  predicates:
  - Host=order.gmall.com

- id: service-order
  uri: lb://service-order
  predicates:
  - Path=/*/order/**

（3）在web-all模块中添加接口

<dependency>
         <groupId>com.atguigu.gmall</groupId>
         <artifactId>service-order-client</artifactId>
         <version>1.0</version>
      </dependency>

在web-all中添加控制器

package com.atguigu.gmall.all.controller;@Controller
public class OrderController {@Autowiredprivate OrderFeignClient orderFeignClient;/*** 确认订单* @param model* @return*/@GetMapping("trade.html")public String trade(Model model) {Result<Map<String, Object>> result = orderFeignClient.trade();//addAllAttributes会把里面的map拆分成一个个键值对传过去model.addAllAttributes(result.getData());return "order/trade";}
}

跳转到结算页：

（4）下订单 

下单功能分析：

  1. 保存单据前要做记录：验库存，验价格
  2. 保存单据: orderInfo orderDetail。
  3. 保存以后把购物车中的商品删除。{演示不删！}
  4. 重定向到支付页面。

实体类：OrderInfo

package com.atguigu.gmall.model.order;import com.atguigu.gmall.model.activity.ActivityRule;
import com.atguigu.gmall.model.activity.CouponInfo;
import com.atguigu.gmall.model.base.BaseEntity;
import com.atguigu.gmall.model.enums.ActivityType;
import com.atguigu.gmall.model.enums.CouponType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableName;
import com.fasterxml.jackson.annotation.JsonFormat;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import org.springframework.util.CollectionUtils;import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;@Data
@ApiModel(description = "订单信息")
@TableName("order_info")
public class OrderInfo extends BaseEntity {private static final long serialVersionUID = 1L;@ApiModelProperty(value = "收货人")@TableField("consignee")private String consignee;@ApiModelProperty(value = "收件人电话")@TableField("consignee_tel")private String consigneeTel;@ApiModelProperty(value = "总金额")@TableField("total_amount")private BigDecimal totalAmount;@ApiModelProperty(value = "订单状态")@TableField("order_status")private String orderStatus;@ApiModelProperty(value = "用户id")@TableField("user_id")private Long userId;@ApiModelProperty(value = "付款方式")@TableField("payment_way")private String paymentWay;@ApiModelProperty(value = "送货地址")@TableField("delivery_address")private String deliveryAddress;@ApiModelProperty(value = "订单备注")@TableField("order_comment")private String orderComment;@ApiModelProperty(value = "订单交易编号（第三方支付用)")@TableField("out_trade_no")private String outTradeNo;@ApiModelProperty(value = "订单描述(第三方支付用)")@TableField("trade_body")private String tradeBody;@ApiModelProperty(value = "创建时间")@TableField("create_time")@JsonFormat(locale="zh", timezone="GMT+8", pattern="yyyy-MM-dd HH:mm:ss")private Date createTime;@ApiModelProperty(value = "失效时间")@TableField("expire_time")@JsonFormat(locale="zh", timezone="GMT+8", pattern="yyyy-MM-dd HH:mm:ss")private Date expireTime;@ApiModelProperty(value = "进度状态")@TableField("process_status")private String processStatus;@ApiModelProperty(value = "物流单编号")@TableField("tracking_no")private String trackingNo;@ApiModelProperty(value = "父订单编号")@TableField("parent_order_id")private Long parentOrderId;@ApiModelProperty(value = "图片路径")@TableField("img_url")private String imgUrl;@TableField(exist = false)private List<OrderDetail> orderDetailList;@TableField(exist = false)private String wareId;@ApiModelProperty(value = "地区")@TableField("province_id")private Long provinceId;@ApiModelProperty(value = "促销金额")@TableField("activity_reduce_amount")private BigDecimal activityReduceAmount;@ApiModelProperty(value = "优惠券")@TableField("coupon_amount")private BigDecimal couponAmount;@ApiModelProperty(value = "原价金额")@TableField("original_total_amount")private BigDecimal originalTotalAmount;@ApiModelProperty(value = "可退款日期（签收后30天）")@TableField("refundable_time")@JsonFormat(locale="zh", timezone="GMT+8", pattern="yyyy-MM-dd HH:mm:ss")private Date refundableTime;@ApiModelProperty(value = "运费")@TableField("feight_fee")private BigDecimal feightFee;@ApiModelProperty(value = "操作时间")@JsonFormat(locale="zh", timezone="GMT+8", pattern="yyyy-MM-dd HH:mm:ss")@TableField("operate_time")private Date operateTime;//  计算活动或者优惠劵的金额@TableField(exist = false)private List<OrderDetailVo> orderDetailVoList;@TableField(exist = false)private String orderStatusName;@TableField(exist = false)private CouponInfo couponInfo;// 计算总价格public void sumTotalAmount(){BigDecimal totalAmount = new BigDecimal("0");BigDecimal originalTotalAmount = new BigDecimal("0");BigDecimal couponAmount = new BigDecimal("0");//  减去优惠劵if(null != couponInfo) {couponAmount = couponAmount.add(couponInfo.getReduceAmount());totalAmount = totalAmount.subtract(couponInfo.getReduceAmount());}//  减去活动if(null != this.getActivityReduceAmount()) {totalAmount = totalAmount.subtract(this.getActivityReduceAmount());}//  计算最后for (OrderDetail orderDetail : orderDetailList) {BigDecimal skuTotalAmount = orderDetail.getOrderPrice().multiply(new BigDecimal(orderDetail.getSkuNum()));originalTotalAmount = originalTotalAmount.add(skuTotalAmount);totalAmount = totalAmount.add(skuTotalAmount);}this.setTotalAmount(totalAmount);this.setOriginalTotalAmount(originalTotalAmount);this.setCouponAmount(couponAmount);}/*** 获取促销优惠总金额* @param orderInfo* @return*/public BigDecimal getActivityReduceAmount(OrderInfo orderInfo) {//促销优惠金额BigDecimal activityReduceAmount = new BigDecimal("0");List<OrderDetailVo> orderDetailVoList = orderInfo.getOrderDetailVoList();if(!CollectionUtils.isEmpty(orderDetailVoList)) {for(OrderDetailVo orderDetailVo : orderDetailVoList) {ActivityRule activityRule = orderDetailVo.getActivityRule();if(null != activityRule) {activityReduceAmount = activityReduceAmount.add(activityRule.getReduceAmount());}}}return activityReduceAmount;}/*** 计算购物项分摊的优惠减少金额* 打折：按折扣分担* 现金：按比例分摊* @param orderInfo* @return*/public Map<String, BigDecimal> computeOrderDetailPayAmount(OrderInfo orderInfo) {Map<String, BigDecimal> skuIdToReduceAmountMap = new HashMap<>();//  获取到订单明细List<OrderDetailVo> orderDetailVoList = orderInfo.getOrderDetailVoList();if (!CollectionUtils.isEmpty(orderDetailVoList)) {for (OrderDetailVo orderDetailVo : orderDetailVoList) {//  获取到活动的规则ActivityRule activityRule = orderDetailVo.getActivityRule();List<OrderDetail> orderDetailList = orderDetailVo.getOrderDetailList();if (null != activityRule) {//  key = activity:skuId//优惠金额， 按比例分摊BigDecimal reduceAmount = activityRule.getReduceAmount();if (orderDetailList.size() == 1) {//  记录活动的减少的金额skuIdToReduceAmountMap.put("activity:" + orderDetailList.get(0).getSkuId(), reduceAmount);} else {// 总金额BigDecimal originalTotalAmount = new BigDecimal(0);for (OrderDetail orderDetail : orderDetailList) {BigDecimal skuTotalAmount = orderDetail.getOrderPrice().multiply(new BigDecimal(orderDetail.getSkuNum()));originalTotalAmount = originalTotalAmount.add(skuTotalAmount);}//  记录除最后一项是所有分摊金额， 最后一项 = 总的 - skuPartReduceAmount//  三项  100 一项 33.33 二项 33.33 第三项 100-66.66 = 33.34BigDecimal skuPartReduceAmount = new BigDecimal(0);//  促销活动对应的是满减！if (activityRule.getActivityType().equals(ActivityType.FULL_REDUCTION.name())) {for (int i = 0, len = orderDetailList.size(); i < len; i++) {OrderDetail orderDetail = orderDetailList.get(i);//  最后一项前面一项应该如何做if (i < len - 1) {BigDecimal skuTotalAmount = orderDetail.getOrderPrice().multiply(new BigDecimal(orderDetail.getSkuNum()));//sku分摊金额  skuTotalAmount/originalTotalAmount * 优惠的金额BigDecimal skuReduceAmount = skuTotalAmount.divide(originalTotalAmount, 2, RoundingMode.HALF_UP).multiply(reduceAmount);skuIdToReduceAmountMap.put("activity:" + orderDetail.getSkuId(), skuReduceAmount);skuPartReduceAmount = skuPartReduceAmount.add(skuReduceAmount);} else {//  最后一项BigDecimal skuReduceAmount = reduceAmount.subtract(skuPartReduceAmount);skuIdToReduceAmountMap.put("activity:" + orderDetail.getSkuId(), skuReduceAmount);}}} else {//  满量打折for (int i = 0, len = orderDetailList.size(); i < len; i++) {OrderDetail orderDetail = orderDetailList.get(i);if (i < len - 1) {BigDecimal skuTotalAmount = orderDetail.getOrderPrice().multiply(new BigDecimal(orderDetail.getSkuNum()));//sku分摊金额BigDecimal skuDiscountTotalAmount = skuTotalAmount.multiply(activityRule.getBenefitDiscount().divide(new BigDecimal("10")));BigDecimal skuReduceAmount = skuTotalAmount.subtract(skuDiscountTotalAmount);skuIdToReduceAmountMap.put("activity:" + orderDetail.getSkuId(), skuReduceAmount);skuPartReduceAmount = skuPartReduceAmount.add(skuReduceAmount);} else {BigDecimal skuReduceAmount = reduceAmount.subtract(skuPartReduceAmount);skuIdToReduceAmountMap.put("activity:" + orderDetail.getSkuId(), skuReduceAmount);}}}}}}}//  计算优惠券CouponInfo couponInfo = orderInfo.getCouponInfo();if (null != couponInfo) {//sku对应的订单明细Map<Long, OrderDetail> skuIdToOrderDetailMap = new HashMap<>();for (OrderDetail orderDetail : orderInfo.getOrderDetailList()) {skuIdToOrderDetailMap.put(orderDetail.getSkuId(), orderDetail);}// 优惠券对应的skuId列表List<Long> skuIdList = couponInfo.getSkuIdList();// 优惠券优惠总金额BigDecimal reduceAmount = couponInfo.getReduceAmount();if (skuIdList.size() == 1) {// sku总的优惠金额 = 优惠券 key = "coupon:skuId"skuIdToReduceAmountMap.put("coupon:" + skuIdToOrderDetailMap.get(skuIdList.get(0)).getSkuId(), reduceAmount);} else {//总金额BigDecimal originalTotalAmount = new BigDecimal(0);for (Long skuId : skuIdList) {OrderDetail orderDetail = skuIdToOrderDetailMap.get(skuId);BigDecimal skuTotalAmount = orderDetail.getOrderPrice().multiply(new BigDecimal(orderDetail.getSkuNum()));originalTotalAmount = originalTotalAmount.add(skuTotalAmount);}// 记录除最后一项是所有分摊金额， 最后一项 = 总的 - skuPartReduceAmountBigDecimal skuPartReduceAmount = new BigDecimal(0);// 购物券类型 1 现金券 2 折扣券 3 满减券 4 满件打折券if (couponInfo.getCouponType().equals(CouponType.CASH.name()) || couponInfo.getCouponType().equals(CouponType.FULL_REDUCTION.name())) {for (int i = 0, len = skuIdList.size(); i < len; i++) {OrderDetail orderDetail = skuIdToOrderDetailMap.get(skuIdList.get(i));if (i < len - 1) {BigDecimal skuTotalAmount = orderDetail.getOrderPrice().multiply(new BigDecimal(orderDetail.getSkuNum()));//sku分摊金额BigDecimal skuReduceAmount = skuTotalAmount.divide(originalTotalAmount, 2, RoundingMode.HALF_UP).multiply(reduceAmount);skuIdToReduceAmountMap.put("coupon:" + orderDetail.getSkuId(), skuReduceAmount);skuPartReduceAmount = skuPartReduceAmount.add(skuReduceAmount);} else {BigDecimal skuReduceAmount = reduceAmount.subtract(skuPartReduceAmount);skuIdToReduceAmountMap.put("coupon:" + orderDetail.getSkuId(), skuReduceAmount);}}} else {//  对应的2,4for (int i = 0, len = skuIdList.size(); i < len; i++) {OrderDetail orderDetail = skuIdToOrderDetailMap.get(skuIdList.get(i));if (i < len - 1) {BigDecimal skuTotalAmount = orderDetail.getOrderPrice().multiply(new BigDecimal(orderDetail.getSkuNum()));BigDecimal skuDiscountTotalAmount = skuTotalAmount.multiply(couponInfo.getBenefitDiscount().divide(new BigDecimal("10")));BigDecimal skuReduceAmount = skuTotalAmount.subtract(skuDiscountTotalAmount);//sku分摊金额skuIdToReduceAmountMap.put("coupon:" + orderDetail.getSkuId(), skuReduceAmount);skuPartReduceAmount = skuPartReduceAmount.add(skuReduceAmount);} else {BigDecimal skuReduceAmount = reduceAmount.subtract(skuPartReduceAmount);skuIdToReduceAmountMap.put("coupon:" + orderDetail.getSkuId(), skuReduceAmount);}}}}}return skuIdToReduceAmountMap;}
}

添加mapper

package com.atguigu.gmall.order.mapper;@Mapper
public interface OrderInfoMapper extends BaseMapper<OrderInfo> {}

package com.atguigu.gmall.order.mapper;@Mapper
public interface OrderDetailMapper extends BaseMapper<OrderDetail> {
}

添加接口OrderService ：

package com.atguigu.gmall.order.service;public interface OrderService extends IService<OrderInfo> {/*** 保存订单* @param orderInfo* @return*/Long saveOrderInfo(OrderInfo orderInfo);
}

实现类：

package com.atguigu.gmall.order.service.impl;@Service
public class OrderServiceImpl extends ServiceImpl<OrderInfoMapper, OrderInfo> implements OrderService {@Autowiredprivate OrderInfoMapper orderInfoMapper;@Autowiredprivate OrderDetailMapper orderDetailMapper;@Override
@Transactional
public Long saveOrderInfo(OrderInfo orderInfo) {//调用里面的方法获取总金额orderInfo.sumTotalAmount();//订单状态orderInfo.setOrderStatus(OrderStatus.UNPAID.name());//付款方式  在线支付写死了orderInfo.setPaymentWay（PaymentWay.ONLINE.name（））;String outTradeNo = "ATGUIGU" + System.currentTimeMillis() + "" + new Random().nextInt(1000);//订单交易号orderInfo.setOutTradeNo(outTradeNo);//创建时间，不写也没事数据库自动添加orderInfo.setCreateTime(new Date());// 失效时间，定义为1天Calendar calendar = Calendar.getInstance();calendar.add(Calendar.DATE, 1);orderInfo.setExpireTime(calendar.getTime());//进度状态orderInfo.setProcessStatus(ProcessStatus.UNPAID.name());//订单描述   // 获取订单明细List<OrderDetail> orderDetailList = orderInfo.getOrderDetailList();StringBuffer tradeBody = new StringBuffer();for (OrderDetail orderDetail : orderDetailList) {tradeBody.append(orderDetail.getSkuName()+" ");}//如果订单描述长度大于100进行截取if (tradeBody.toString().length()>100){orderInfo.setTradeBody(tradeBody.toString().substring(0,100));}else {orderInfo.setTradeBody(tradeBody.toString());}//保存订单orderInfoMapper.insert(orderInfo);for (OrderDetail orderDetail : orderDetailList) {//设置订单idorderDetail.setOrderId(orderInfo.getId());//保存订单明细orderDetailMapper.insert(orderDetail);  }return orderInfo.getId();}
}

 

继续编写控制器：在OrderApiController：

@Autowired
private OrderService orderService;
/*** 提交订单* @param orderInfo* @param request* @return*/@PostMapping("auth/submitOrder")public Result submitOrder(@RequestBody OrderInfo orderInfo, HttpServletRequest request) {// 获取到用户IdString userId = AuthContextHolder.getUserId(request);orderInfo.setUserId(Long.parseLong(userId));// 验证通过，保存订单！Long orderId = orderService.saveOrderInfo(orderInfo);return Result.ok(orderId);}

订单表多了一条数据： 


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