gnl.MethodFailedException: Method "setTxtVipMoney" failed for object book.action.LylAction@1748654 [java.lang.NoSuchMethodException: setTxtVipMoney([Ljava.lang.String;)]，其中txtVipMoney文本框的值隐藏了，无法取到值，但网页上报404错误，后台代码为：if(selVIP==1){
                               book.setVipPrice(txtVipMoney);
                                book.setVipIntegrate(txtVipScore);
                       }else if(selVIP==2){
                              book.setVipPrice(0.0);
                              book.setVipIntegrate(0.0);
                         }其中selVIP是下拉框判断，当selVIP值为1是，就赋值；为2是，就设置其默认值，当文本框的值不填为默认时就会发生异常，求决绝方案？？？？？？