后台判断参数是否是某个类型

来源:互联网 发布:c语言成绩管理系统 编辑:程序博客网 时间:2024/05/16 10:40
try {stock = Integer.parseInt(g_stock);//stock = Integer.valueOf(g_stock);if (stock < 0) {throw new Exception();}} catch (Exception e) {request.setAttribute("error", "商品库存必须是大于0的整数");request.getRequestDispatcher("/edit.jsp").forward(request, response);return;}


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