奇怪问题
String s_father=request.getParameter("fatherid");
String s_sunname=request.getParameter("sunname");//子类名
System.out.println("the from id is:"+request.getParameter("fathername"));
int fatherid=Integer.parseInt(request.getParameter("fatherid")); //父类ID
String sql="INSERT INTO sd_productkind VALUES("+"'"+s_sunname+"'"+","+"'"+fatherid+"'"+")";
从数据库中返回的是0行数据,是否是SQL语句问题??????