/
OrderServiceImpl.java
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/
OrderServiceImpl.java
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package top.tobing.platform.order.service.impl;
import com.baomidou.mybatisplus.core.toolkit.IdWorker;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.script.DefaultRedisScript;
import org.springframework.stereotype.Service;
import java.math.BigDecimal;
import java.util.*;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.stream.Collectors;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import top.tobing.common.api.BziCodeEnum;
import top.tobing.common.api.Result;
import top.tobing.common.constant.LuaScript;
import top.tobing.common.constant.PlatformOrderConstant;
import top.tobing.common.to.MemberRespVo;
import top.tobing.common.to.SkuStockSearchVo;
import top.tobing.common.to.mq.SeckillOrderTo;
import top.tobing.common.utils.PageUtils;
import top.tobing.common.utils.Query;
import top.tobing.common.utils.R;
import top.tobing.platform.order.dao.OrderDao;
import top.tobing.platform.order.entity.OrderEntity;
import top.tobing.platform.order.entity.OrderItemEntity;
import top.tobing.platform.order.entity.PaymentInfoEntity;
import top.tobing.platform.order.enume.OrderStatusEnum;
import top.tobing.platform.order.exception.NoStockException;
import top.tobing.platform.order.feign.CartFeignService;
import top.tobing.platform.order.feign.MemberFeignService;
import top.tobing.platform.order.feign.ProductFeignService;
import top.tobing.platform.order.feign.WareFeignService;
import top.tobing.platform.order.interceptor.LoginUserInterceptor;
import top.tobing.platform.order.service.OrderItemService;
import top.tobing.platform.order.service.OrderService;
import top.tobing.platform.order.service.PaymentInfoService;
import top.tobing.platform.order.to.OrderCreateTo;
import top.tobing.platform.order.vo.*;
@Slf4j
@Service("orderService")
public class OrderServiceImpl extends ServiceImpl<OrderDao, OrderEntity> implements OrderService {
private ThreadLocal<OrderSubmitVo> submitVoThreadLocal = new ThreadLocal<>();
@Autowired
private OrderService orderService;
@Autowired
private OrderItemService orderItemService;
@Autowired
private MemberFeignService memberFeignService;
@Autowired
private CartFeignService cartFeignService;
@Autowired
private WareFeignService wareFeignService;
@Autowired
private ProductFeignService productFeignService;
@Autowired
private ThreadPoolExecutor poolExecutor;
@Autowired
private StringRedisTemplate redisTemplate;
@Autowired
private RabbitTemplate rabbitTemplate;
@Autowired
private PaymentInfoService paymentInfoService;
@Override
public PageUtils queryPage(Map<String, Object> params) {
IPage<OrderEntity> page = this.page(
new Query<OrderEntity>().getPage(params),
new QueryWrapper<OrderEntity>()
);
return new PageUtils(page);
}
@Override
public OrderConfirmVo toTrade() throws ExecutionException, InterruptedException {
OrderConfirmVo confirmVo = new OrderConfirmVo();
MemberRespVo memberRespVo = UserContextHolder.getCurrentUser();
// MemberRespVo memberRespVo = LoginUserInterceptor.threadLocal.get();
// 注意将本次请求的上下文对象,设置给每个异步编排中的线程,因为RequestContextHolder内部通过ThreadLocal来保存数据
// 异步化如果不进行处理那么在Feign的拦截器将拿不到数据
RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
CompletableFuture<Void> getAddress = CompletableFuture.runAsync(() -> {
// 注意异步编排无法使用ThreadLocal中的变量,可以将信息取出来放到
RequestContextHolder.setRequestAttributes(requestAttributes);
// 1、查询所有的收货地址【用户服务】
List<MemberAddressVo> address = memberFeignService.addressList(memberRespVo.getId());
confirmVo.setAddressList(address);
}, poolExecutor);
CompletableFuture<Void> getItems = CompletableFuture.supplyAsync(() -> {
// 注意异步编排无法使用ThreadLocal中的变量,可以将信息取出来放到
RequestContextHolder.setRequestAttributes(requestAttributes);
// 2、查询购物车选中的商品【购物车服务】
Result<List<OrderItemVo>> cartResult = cartFeignService.listOwnCheckItem();
if (BziCodeEnum.SUCCESS.getCode() != cartResult.getCode()) {
throw new RuntimeException("远程查询数据出错!");
}
confirmVo.setItemVoList(cartResult.getData());
return cartResult.getData();
}, poolExecutor).thenAcceptAsync((items) -> {
// 3、查询远程是否存在库存【库存服务】
List<Long> skuIds = items.stream().map(OrderItemVo::getSkuId).collect(Collectors.toList());
List<SkuStockSearchVo> stockStatus = wareFeignService.batchSkuStock(skuIds);
if (stockStatus != null) {
Map<Long, Boolean> map = stockStatus.stream().collect(Collectors.toMap(SkuStockSearchVo::getSkuId, SkuStockSearchVo::getStock));
confirmVo.setHasStockMap(map);
}
}, poolExecutor);
// 4、查询用户优惠信息【用户服务】
Integer integration = memberRespVo.getIntegration();
confirmVo.setIntegration(integration);
// 5、生成防重令牌,分别保存在Redis与返回页面,这样就可以在页面提交的时候直接校验(保证接口幂等性)
String orderToken = UUID.randomUUID().toString().replace("-", "");
confirmVo.setOrderToken(orderToken);
redisTemplate.opsForValue().set(PlatformOrderConstant.USER_ORDER_TOKEN_PREFIX + memberRespVo.getId(), orderToken);
CompletableFuture.allOf(getAddress, getItems).get();
return confirmVo;
}
// @GlobalTransactional
@Transactional
@Override
public OrderSubmitRespVo submitOrder(OrderSubmitVo orderSubmitVo) {
OrderSubmitRespVo respVo = new OrderSubmitRespVo();
submitVoThreadLocal.set(orderSubmitVo);
MemberRespVo memberRespVo = LoginUserInterceptor.threadLocal.get();
respVo.setCode(0);
// 1、验证令牌
/* 反例,非原子性对比
String submitToken = orderSubmitVo.getOrderToken();
String redisToken = redisTemplate.opsForValue().get(OrderConstant.USER_ORDER_TOKEN_PREFIX + memberRespVo.getId());
if (submitToken != null && submitToken.equals(redisToken)) {
} */
// 正例子,使用Lua脚本,原子性对比
String script = LuaScript.REDIS_ATOMIC_COMPARE_AND_DELETE;
String submitToken = orderSubmitVo.getOrderToken();
Long result = redisTemplate.execute(new DefaultRedisScript<Long>(script, Long.class),
Arrays.asList(PlatformOrderConstant.USER_ORDER_TOKEN_PREFIX + memberRespVo.getId()), submitToken);
if (result == null || result.equals(0L)) {
// 令牌验证失败
respVo.setCode(4);
return respVo;
} else {
// 临牌验证成功:创建订单、验价
OrderCreateTo orderCreateTo = createOrder();
BigDecimal payAmount = orderCreateTo.getOrder().getPayAmount();
BigDecimal submitAmount = orderSubmitVo.getPayPrice();
if (payAmount.subtract(submitAmount).doubleValue() < 0.01) {
// 保存订单
saveOrder(orderCreateTo);
// 锁库存:skuId、skuName、skuLocked
List<OrderItemStockLockVo> stockList = orderCreateTo.getOrderItems().stream().map(item -> {
OrderItemStockLockVo lockVo = new OrderItemStockLockVo();
lockVo.setOrderSn(item.getOrderSn());
lockVo.setSkuId(item.getSkuId());
lockVo.setName(item.getSkuName());
lockVo.setNum(item.getSkuQuantity());
return lockVo;
}).collect(Collectors.toList());
// 接口幂等性处理
log.info("即将发送锁库存");
R r = null;
try {
r = wareFeignService.lockSkuStocks(stockList);
} catch (Exception e) {
log.error("远程调用出现异常");
}
if (r != null && !r.get("code").equals(0)) {
// 抛出异常,便于回滚
throw new NoStockException();
}
// 订单超时自动处理:发送消息到延时队列,超时自动删除订单
// String exchange, String routingKey, Message message
respVo.setOrderEntity(orderCreateTo.getOrder());
rabbitTemplate.convertAndSend("order-event-exchange", "order.create.order", orderCreateTo.getOrder().getOrderSn());
// 手动抛出异常,用于测试
// int i = 1 / 0;
} else {
respVo.setCode(2);
return respVo;
}
}
return respVo;
}
@Override
public OrderEntity getStatusByOrderSn(String orderSn) {
return this.getOne(new QueryWrapper<OrderEntity>().eq("order_sn", orderSn));
}
@Override
public Integer updateOrderStatusToOverdue(String orderSn) {
return this.baseMapper.updateOrderStatusToOverdue(orderSn);
}
@Override
public PayVo getOrderPay(String orderSn) {
PayVo payVo = new PayVo();
OrderEntity orderEntity = orderService.getOne(new QueryWrapper<OrderEntity>().eq("order_sn", orderSn));
BigDecimal bigDecimal = orderEntity.getPayAmount().setScale(2, BigDecimal.ROUND_UP);
payVo.setOut_trade_no(orderSn); // 订单编号
payVo.setSubject("订单名称【测试】"); // 订单名称
payVo.setTotal_amount(bigDecimal.toString()); // 订单金额,保留两位小数
payVo.setBody("无描述【测试】");
return payVo;
}
@Override
public List<OrderRespVo> getOrderDetailList() {
MemberRespVo memberRespVo = LoginUserInterceptor.threadLocal.get();
Long id = memberRespVo.getId();
List<OrderEntity> orderEntityList = this.list(new QueryWrapper<OrderEntity>().eq("member_id", id).orderByDesc("id"));
if (orderEntityList != null) {
List<OrderRespVo> respVoList = orderEntityList.stream().map(item -> {
OrderRespVo respVo = new OrderRespVo();
BeanUtils.copyProperties(item, respVo);
// 查询订单项
List<OrderItemEntity> orderItemEntityList = orderItemService.list(new QueryWrapper<OrderItemEntity>().eq("order_sn", item.getOrderSn()));
respVo.setItems(orderItemEntityList);
return respVo;
}).collect(Collectors.toList());
return respVoList;
}
return null;
}
/**
* 保证接口幂等性
* 采用唯一索引的方式限定,orderSn和支付宝流水号
*/
@Override
@Transactional(rollbackFor = Exception.class)
public String updateOrderStatusByAlipay(PayAsyncVo payVo) {
// 保存订单支付信息`oms_payment_info`
PaymentInfoEntity paymentInfoEntity = new PaymentInfoEntity();
paymentInfoEntity.setOrderSn(payVo.getOut_trade_no());
paymentInfoEntity.setAlipayTradeNo(payVo.getTrade_no());
paymentInfoEntity.setTotalAmount(new BigDecimal(payVo.getTotal_amount()));
paymentInfoEntity.setSubject(payVo.getSubject());
paymentInfoEntity.setPaymentStatus(payVo.getTrade_status());
paymentInfoEntity.setCreateTime(payVo.getGmt_create());
paymentInfoEntity.setCallbackTime(new Date());
paymentInfoService.save(paymentInfoEntity);
// 判断订单的支付状态
if ("TRADE_FINISHED".equals(payVo.getTrade_status()) || "TRADE_SUCCESS".equals(payVo.getTrade_status())) {
// 更新订单
this.baseMapper.updateOrderStatusByOrderSn(payVo.getOut_trade_no(), PlatformOrderConstant.OrderStatus.FOR_THE_SEND.getCode());
}
return "success";
}
@Override
public void saveSeckillOrder(SeckillOrderTo seckillOrderTo) {
// 处理订单信息
OrderEntity orderEntity = new OrderEntity();
orderEntity.setMemberId(seckillOrderTo.getMemberId());
orderEntity.setOrderSn(seckillOrderTo.getOrderSn());
orderEntity.setCreateTime(new Date());
// TODO 远程查询运费信息
orderEntity.setPayAmount(seckillOrderTo.getSeckillPrice());
orderEntity.setFreightAmount(new BigDecimal("0.0"));
orderEntity.setPayAmount(orderEntity.getPayAmount().add(orderEntity.getFreightAmount()));
orderEntity.setStatus(PlatformOrderConstant.OrderStatus.FOR_THE_PAYMENT.getCode());
// TODO 后继
// 处理订单项信息
}
// 保存订单内容
private void saveOrder(OrderCreateTo orderCreateTo) {
// 保存订单
OrderEntity order = orderCreateTo.getOrder();
save(order);
// 批量保存订单项
List<OrderItemEntity> orderItems = orderCreateTo.getOrderItems();
orderItemService.saveBatch(orderItems);
}
/**
* 构造订单项
*/
private OrderCreateTo createOrder() {
OrderCreateTo orderCreateTo = new OrderCreateTo();
// 1、生成订单号,Idwork生成
String orderSn = IdWorker.getTimeId();
// 2、创建订单
OrderEntity orderEntity = buildOrder(orderSn);
orderCreateTo.setOrder(orderEntity);
// 3、获取订单项
List<OrderItemEntity> orderItemVoList = buildOrderItems(orderSn);
orderCreateTo.setOrderItems(orderItemVoList);
// 4、计算价格、积分信息
computeTotal(orderEntity, orderItemVoList);
return orderCreateTo;
}
// 计算总价、总积分等信息
private void computeTotal(OrderEntity orderEntity, List<OrderItemEntity> orderItemVoList) {
// 订单总额
BigDecimal total = new BigDecimal("0.0");
// 优惠券抵扣总金额
BigDecimal coupon = new BigDecimal("0.0");
// 积分抵扣总金额
BigDecimal integration = new BigDecimal("0.0");
// 促销优化总金额(促销价、满减、阶梯价)
BigDecimal promotion = new BigDecimal("0.0");
// 总成长积分
BigDecimal gift = new BigDecimal("0.0");
// 总成长值
BigDecimal growth = new BigDecimal("0.0");
// 计算汇总
for (OrderItemEntity orderItemEntity : orderItemVoList) {
total = total.add(orderItemEntity.getRealAmount());
coupon = coupon.add(orderItemEntity.getCouponAmount());
integration = integration.add(orderItemEntity.getIntegrationAmount());
promotion = promotion.add(orderItemEntity.getPromotionAmount());
gift = gift.add(new BigDecimal(orderItemEntity.getGiftGrowth()));
growth = growth.add(new BigDecimal(orderItemEntity.getGiftIntegration()));
}
// 商品总价
orderEntity.setTotalAmount(total);
// 应付价格
orderEntity.setPayAmount(total.add(orderEntity.getFreightAmount()));
orderEntity.setPromotionAmount(promotion);
orderEntity.setIntegrationAmount(integration);
orderEntity.setCouponAmount(coupon);
// 积分信息
orderEntity.setIntegration(integration.intValue());
orderEntity.setGrowth(growth.intValue());
}
// 构造订单项信息
private List<OrderItemEntity> buildOrderItems(String orderSn) {
// 从购物车获取选中的购物项
Result< List<OrderItemVo>> cartResult = cartFeignService.listOwnCheckItem();
List<OrderItemVo> orderItemVoList = cartResult.getData();
if (orderItemVoList != null && !orderItemVoList.isEmpty()) {
List<OrderItemEntity> collect = orderItemVoList.stream().map(item -> {
OrderItemEntity itemEntity = toOrderItem(item);
itemEntity.setOrderSn(orderSn);
return itemEntity;
}).collect(Collectors.toList());
return collect;
}
return null;
}
// 将购物车项(OrderItemVo)封装为 订单项(OrderItemEntity)
private OrderItemEntity toOrderItem(OrderItemVo item) {
OrderItemEntity orderItemEntity = new OrderItemEntity();
// SPU信息 ==> 远程查询
SpuInfoVo spuInfoVo = productFeignService.getBySkuId(item.getSkuId());
orderItemEntity.setSpuId(spuInfoVo.getId());
orderItemEntity.setSpuName(spuInfoVo.getSpuName());
orderItemEntity.setSpuBrand(spuInfoVo.getBrandId().toString());
orderItemEntity.setCategoryId(spuInfoVo.getCatalogId());
// sku信息
orderItemEntity.setSkuId(item.getSkuId());
orderItemEntity.setSkuName(item.getTitle());
orderItemEntity.setSkuPic(item.getImage());
orderItemEntity.setSkuPrice(item.getPrice());
orderItemEntity.setSkuQuantity(item.getCount());
String attrStr = String.join(";", item.getSkuAttr());
orderItemEntity.setSkuAttrsVals(attrStr);
// 积分信息 ==> 简单处理
orderItemEntity.setGiftGrowth(item.getPrice().multiply(new BigDecimal(orderItemEntity.getSkuQuantity())).intValue());
orderItemEntity.setGiftIntegration(item.getPrice().multiply(new BigDecimal(orderItemEntity.getSkuQuantity())).intValue());
// 订单项价格
orderItemEntity.setPromotionAmount(new BigDecimal(0.0)); //
orderItemEntity.setCouponAmount(new BigDecimal(0.0));
orderItemEntity.setIntegrationAmount(new BigDecimal(0.0));
// 计算实际价格
BigDecimal original = orderItemEntity.getSkuPrice().
multiply(new BigDecimal(orderItemEntity.getSkuQuantity()));
BigDecimal realPrice = original.subtract(orderItemEntity.getPromotionAmount())
.subtract(orderItemEntity.getCouponAmount())
.subtract(orderItemEntity.getIntegrationAmount());
orderItemEntity.setRealAmount(realPrice);
return orderItemEntity;
}
// 构造订单部分信息
private OrderEntity buildOrder(String orderSn) {
OrderEntity orderEntity = new OrderEntity();
MemberRespVo memberRespVo = LoginUserInterceptor.threadLocal.get();
OrderSubmitVo orderSubmitVo = submitVoThreadLocal.get();
// 设置通用信息
orderEntity.setOrderSn(orderSn); // 订单号
orderEntity.setCreateTime(new Date()); // 创建时间
orderEntity.setModifyTime(new Date()); // 修改时间
orderEntity.setStatus(OrderStatusEnum.CREATE_NEW.getCode()); // 订单状态
orderEntity.setPayType(1); // 支付方式
orderEntity.setSourceType(1); // 订单来源
orderEntity.setAutoConfirmDay(7); // 自动确认收货时间
orderEntity.setConfirmStatus(0); // 确认状态
orderEntity.setDeleteStatus(0); // 删除状态
// 查询运费
FareVo fareVo = wareFeignService.farejson(orderSubmitVo.getAddrId());
orderEntity.setFreightAmount(fareVo.getFare());
// 设置用户信息
orderEntity.setMemberId(memberRespVo.getId());
orderEntity.setMemberUsername(memberRespVo.getUsername());
// 设置地址信息
MemberAddressVo memberAddressVo = fareVo.getAddress();
orderEntity.setReceiverName(memberAddressVo.getName());
orderEntity.setReceiverPhone(memberAddressVo.getPhone());
orderEntity.setReceiverPostCode(memberAddressVo.getPostCode());
orderEntity.setReceiverProvince(memberAddressVo.getProvince());
orderEntity.setReceiverCity(memberAddressVo.getCity());
orderEntity.setReceiverRegion(memberAddressVo.getRegion());
orderEntity.setReceiverDetailAddress(memberAddressVo.getDetailAddress());
return orderEntity;
}
}