fix bug

mallinkCApi/src/main/java/com/iformall/controller/WxOrderController.java

@@ -123,7 +123,22 @@ public class WxOrderController extends BaseController {
         //此处判断是否存在绝对保证库存不超卖的缓存，如果没有，则把当前的库存设置为最大值。如果有，则是后台设置的时候保存的，以那个为准。
         boolean hascache = redisLock.hasCouponStockCache(wxCouponCVo.getCouponId());
         if (!hascache) {
-        	redisLock.setCouponStock(wxCouponCVo.getCouponId(), coupon.getRemainInventory());
+   		 	long time = System.currentTimeMillis() + RedisLock.TIMEOUT;
+   		 	String timeStr = String.valueOf(time);
+   		 	boolean stocksetlock = redisLock.lock("couponLockStockSetByOrder_"+coupon.getId(), timeStr);
+   		 	if (stocksetlock) {
+   		 		try {
+	   		 		if (!redisLock.hasCouponStockCache(wxCouponCVo.getCouponId())) {
+	   		 			redisLock.setCouponStock(wxCouponCVo.getCouponId(), coupon.getRemainInventory());
+	   		 		}
+   		 		}catch(Exception e) {
+   		 			logger.error("save order stock cache error.",e);
+   		 		}finally {
+   		 			redisLock.unlock("couponLockStockSetByOrder_"+coupon.getId(), timeStr);
+   		 		}
+   		 	}else {
+   		 		redisLock.unlock("couponLockStockSetByOrder_"+coupon.getId(), timeStr);
+   		 	}
         }
         
         resultData = couponUserCheck(user, wxCouponCVo);