微信支付时，body必须填

business/partner/purchase/jx/localjx/wxpay.go

@@ -1,6 +1,7 @@
 package localjx
 
 import (
+	"fmt"
 	"time"
 
 	"git.rosy.net.cn/baseapi/platformapi/wxpay"
@@ -18,10 +19,14 @@ func vendorPayType2WxpayType(vendorPayType string) string {
 	return vendorPayType
 }
 
+func getOrderBrief(order *model.GoodsOrder) string {
+	return fmt.Sprintf("%s等共%d件商品", order.Skus[0].SkuName, order.GoodsCount)
+}
+
 func pay4OrderByWX(ctx *jxcontext.Context, order *model.GoodsOrder, vendorPayType string) (orderPay *model.OrderPay, err error) {
 	payCreatedAt := time.Now()
 	param := &wxpay.CreateOrderParam{
-		Body:           "",
+		Body:           getOrderBrief(order),
 		NotifyURL:      globals.WxpayNotifyURL,
 		OutTradeNo:     order.VendorOrderID,
 		SpbillCreateIP: ctx.GetRealRemoteIP(),