java-遍历list中的map 并删除

Iterator<Map<String,Object>> orderListIter = ordersList.iterator();
while (orderListIter.hasNext()) {
Map<String,Object> order = orderListIter.next();
if (StringUtils.isNotEmpty(order.get("tradeid")) && "1".equals(String.valueOf(order.get("status")))) {
if (RpcService.checkPay(String.valueOf(order.get("tradeid")))) {
order.put("status", 2);
studentOrderMapper.updateOrderPayStatus(order);
orderListIter.remove();
}
}
}