订单支付金额为0时问题解决。

consumer/src/main/java/cn/lili/event/impl/OrderStatusHandlerExecute.java

@@ -0,0 +1,31 @@
+package cn.lili.event.impl;
+
+import cn.lili.event.TradeEvent;
+import cn.lili.modules.order.cart.entity.dto.TradeDTO;
+import cn.lili.modules.order.order.service.TradeService;
+import cn.lili.modules.payment.kit.enums.PaymentMethodEnum;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ * 订单状态处理类
+ *
+ * @author Chopper
+ * @date 2020-07-03 11:20
+ **/
+@Service
+public class OrderStatusHandlerExecute implements TradeEvent {
+
+
+    @Autowired
+    private TradeService tradeService;
+
+    @Override
+    public void orderCreate(TradeDTO tradeDTO) {
+        //如果订单需要支付金额为0，则将订单步入到下一个流程
+        if (tradeDTO.getPriceDetailDTO().getFlowPrice() <= 0) {
+            tradeService.payTrade(tradeDTO.getSn(), PaymentMethodEnum.BANK_TRANSFER.name(), "-1");
+        }
+
+    }
+}

framework/src/main/java/cn/lili/common/enums/ResultCode.java

@@ -141,6 +141,7 @@ public enum ResultCode {
     /**
      * 支付
      */
+    PAY_UN_WANTED(32000, "当前订单不需要付款，返回订单列表等待系统订单出库即可"),
     PAY_SUCCESS(32001, "支付成功"),
     PAY_INCONSISTENT_ERROR(32002, "付款金额和应付金额不一致"),
     PAY_DOUBLE_ERROR(32003, "订单已支付，不能再次进行支付"),

framework/src/main/java/cn/lili/modules/order/order/entity/dos/Order.java

@@ -220,6 +220,8 @@ public class Order extends BaseEntity {
                 }
             }
         }
+
+        //设置默认支付状态
         this.setOrderStatus(OrderStatusEnum.UNPAID.name());
         this.setPayStatus(PayStatusEnum.UNPAID.name());
         this.setDeliverStatus(DeliverStatusEnum.UNDELIVERED.name());

framework/src/main/java/cn/lili/modules/payment/kit/CashierSupport.java

@@ -145,7 +145,10 @@ public class CashierSupport {
     public CashierParam cashierParam(PayParam payParam) {
         for (CashierExecute paramInterface : cashierExecuteList) {
             CashierParam cashierParam = paramInterface.getPaymentParams(payParam);
-            if (cashierParam != null) {
+            //如果订单不需要付款，则抛出异常，直接返回
+            if (cashierParam.getPrice() <= 0) {
+                throw new ServiceException(ResultCode.PAY_UN_WANTED);
+            }
             cashierParam.setSupport(support(payParam.getClientType()));
             cashierParam.setWalletValue(memberWalletService.getMemberWallet(UserContext.getCurrentUser().getId()).getMemberWallet());
             OrderSetting orderSetting = JSONUtil.toBean(settingService.get(SettingEnum.ORDER_SETTING.name()).getSettingValue(), OrderSetting.class);
@@ -153,12 +156,17 @@ public class CashierSupport {
             cashierParam.setAutoCancel(cashierParam.getCreateTime().getTime() + minute * 1000 * 60);
             return cashierParam;
         }
-        }
-
         log.error("错误的支付请求:{}", payParam.toString());
         throw new ServiceException(ResultCode.PAY_CASHIER_ERROR);
     }
 
+
+    /**
+     * 支付结果
+     *
+     * @param payParam
+     * @return
+     */
     public Boolean paymentResult(PayParam payParam) {
         for (CashierExecute cashierExecute : cashierExecuteList) {
             if (cashierExecute.cashierEnum().name().equals(payParam.getOrderType())) {