bugfix

src/main/java/com/caimei365/user/service/impl/RegisterServiceImpl.java

@@ -22,6 +22,7 @@ import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
 
+import java.math.BigDecimal;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.*;
@@ -1109,13 +1110,15 @@ public class RegisterServiceImpl implements RegisterService {
         //1.user表扣豆子
         VipPackage pac = vipMapper.findUserPackage(packageId);
         Integer userBeans = vipMapper.findUserBeans(userId);
-        Long l = Math.multiplyExact(Math.round(pac.getPrice()), pac.getProportion());
-        Long beans = Long.valueOf(userBeans);
-        Long result = Math.subtractExact(beans, l);
-        String s = result.toString();
-        vipMapper.updateUserBeans(userId, Integer.valueOf(s));
+        BigDecimal b1 = new BigDecimal(pac.getPrice());
+        BigDecimal b2 = new BigDecimal(pac.getProportion());
+        BigDecimal b3 = new BigDecimal(userBeans);
+        BigDecimal multiply = b1.multiply(b2);
+        //b3已有豆子-b1价格*b2比例
+        Integer integer = Integer.valueOf(String.valueOf(b3.subtract(multiply)));
+        vipMapper.updateUserBeans(userId, integer);
         //采美豆消费表记录消费
-        vipMapper.addUserBeansHistory(userId, Integer.valueOf((int) (pac.getPrice() * pac.getProportion())));
+        vipMapper.addUserBeansHistory(userId, Integer.valueOf(String.valueOf(multiply)));
         Calendar cal = Calendar.getInstance();
         if (repayFlag == 0) {
             SuperVipPo superVip = new SuperVipPo();
@@ -1210,7 +1213,7 @@ public class RegisterServiceImpl implements RegisterService {
                 }
             }
         }
-        log.info(userId + "消费采美豆" + l + "会员到期时间至" + cal.getTime());
+        log.info(userId + "消费采美豆" + multiply + "会员到期时间至" + cal.getTime());
     }
 
     /**