diff --git a/application/api/model/UserWallet.php b/application/api/model/UserWallet.php
index 44f68dd5..815c04dc 100644
--- a/application/api/model/UserWallet.php
+++ b/application/api/model/UserWallet.php
@@ -124,10 +124,11 @@ class UserWallet extends Model
         $exchange_user = Cache::get('exchange_user_' . $uid);
         if($exchange_user){
             //获取缓存的过期剩余 时间
-            $time = Cache::store('redis')->handler()->ttl('exchange_user_' . $uid);
-            return ['code' => 0, 'msg' => '请'.$time.'秒后再次兑换', 'data' => null];
+            $time = ceil((Cache::get('exchange_user_end_time_' . $uid) - time() ) /60);
+            return ['code' => 0, 'msg' => '请'.$time.'分钟后再次兑换', 'data' => null];
         }else{
             Cache::set('exchange_user_' . $uid, 1, 5 * 60);
+            Cache::set('exchange_user_end_time_' . $uid, time() + 5 * 60 , 5 * 60 + 1);
         }
         if(empty($earnings_num)){
             return ['code' => 0, 'msg' => '请输入需要兑换的钻石数量', 'data' => null];
@@ -339,4 +340,5 @@ class UserWallet extends Model
 
         return true;
     }
+
 }
\ No newline at end of file