大家进来分析一下，这个真牛×

[duzunwu512]

public String insert(HttpServletRequest request,HttpSession session,JspWriter out)throws BaseDBException{
String create_date=request.getParameter("create_date");
String storage_name=StringUtil.nativeGBCode(request.getParameter("storage_name"));
String bill_serial=create_date.substring(0,4)+"-"+request.getParameter("bill_serial");
String line=StringUtil.nativeGBCode(request.getParameter("line"));
String consignment=StringUtil.nativeGBCode(request.getParameter("consignment"));
String consignment_tel=request.getParameter("consignment_tel");
String bargain=request.getParameter("bargain");
if(bargain==null||bargain.equals(""))bargain="00000000";
String gather=StringUtil.nativeGBCode(request.getParameter("gather"));
String gather_tel=request.getParameter("gather_tel");
String gather_address=StringUtil.nativeGBCode(request.getParameter("gather_address"));
String goods_name=StringUtil.nativeGBCode(request.getParameter("goods_name"));
String pack=StringUtil.nativeGBCode(request.getParameter("pack"));
String goods_serial=request.getParameter("goods_serial");
int goods_count=ParamUtils.getIntParameter(request,"goods_count",0);
String freightmoney=request.getParameter("freight_money");
double freight_money=ParamUtils.getDoubleParameter(request,"freight_money",0.00);
double insurance=ParamUtils.getDoubleParameter(request,"insurance",0.00);
double zheng_settlement=ParamUtils.getDoubleParameter(request,"zheng_settlement",0.00);

...｝
得到的参数中，有的可以得到参数，有的得到的对数为null。时而成功，时而出现上面说的错误，有个别的得到的对数为null，事实上不应该为空，我用的jakarta-tomcat-4.1.24.tar.gz作的服务器，同样的代码在其它版本服务器没有什么问题，是不是服务器的问题，如果说是服务器的问题，为什么会时而成功呢，郁闷，请给意见！
附：
public static double getDoubleParameter(HttpServletRequest request,
String name, double defaultNum) {
String temp = request.getParameter(name);
if (temp != null && !temp.equals("")) {
double num = defaultNum;
try {
num = Double.parseDouble(temp);
} catch (Exception ignored) {
}
return num;
} else {
return defaultNum;
}
}