refactor(utils): 更新异常类导入路径并添加JSON依赖

Administrator

yesterday 75ffb97146a0a15d76ae4603ccf328eb9716d798

 src/main/java/com/xcong/excoin/modules/contract/service/ContractHoldOrderService.java

@@ -47,5 +47,6 @@
    public void calHoldOrderHoldFeeAmount();

    public Result changePositionType();
    public void calHoldFeeAmountForBondAmount();

}