From 09c8cfbd3b4cf5e376e41ab33d141b18464f9e4b Mon Sep 17 00:00:00 2001
From: Helius <wangdoubleone@gmail.com>
Date: Sun, 28 Aug 2022 19:41:20 +0800
Subject: [PATCH] fix for prod

---
 src/main/java/cc/mrbird/febs/dapp/service/impl/DappWalletServiceImpl.java |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/src/main/java/cc/mrbird/febs/dapp/service/impl/DappWalletServiceImpl.java b/src/main/java/cc/mrbird/febs/dapp/service/impl/DappWalletServiceImpl.java
index 8e56a86..414db76 100644
--- a/src/main/java/cc/mrbird/febs/dapp/service/impl/DappWalletServiceImpl.java
+++ b/src/main/java/cc/mrbird/febs/dapp/service/impl/DappWalletServiceImpl.java
@@ -171,7 +171,11 @@
     public BigDecimal calPrice(PriceDto priceDto) {
         String priceStr = redisUtils.getString(AppContants.REDIS_KEY_TFC_NEW_PRICE);
 
-        return priceDto.getAmount().multiply(new BigDecimal("0.1")).multiply(new BigDecimal(priceStr));
+        BigDecimal amount = priceDto.getAmount();
+        if (priceDto.getAmount() == null) {
+            amount = BigDecimal.ZERO;
+        }
+        return amount.multiply(new BigDecimal("0.1")).divide(new BigDecimal(priceStr), 2, RoundingMode.HALF_UP);
     }
 
     @Override

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