积分灵兰币控制负数

src/main/java/com/peanut/modules/master/controller/JfTransactionDetailsController.java

@@ -83,12 +83,19 @@ public class JfTransactionDetailsController {
         JfTransactionDetails jf = new JfTransactionDetails();
         MyUserEntity user = userService.getById(params.get("userId").toString());
         BigDecimal changeAmount = new BigDecimal(params.get("changeAmount").toString());
+        if (changeAmount.compareTo(BigDecimal.ZERO)<1){
+            return R.error("变动金额不能为负数");
+        }
         String actType = params.get("actType").toString();
         if (actType.equals("0")) {
             jf.setActType(0);
             user.setJf(user.getJf().add(changeAmount));
             jf.setChangeAmount(changeAmount);
         }else {
+            BigDecimal resAmount = user.getJf().subtract(changeAmount);
+            if (resAmount.compareTo(BigDecimal.ZERO)<0){
+                return R.error("余额不足，扣除失败");
+            }
             jf.setActType(1);
             user.setJf(user.getJf().subtract(changeAmount));
             jf.setChangeAmount(changeAmount.negate());