WebRoot/yongdian/yongdianupdate.jsp

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<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%@ page import="com.util.*"%>
<%
request.setCharacterEncoding("gb2312");//字符集
DBO db=new DBO();//数据连接类
String   yd="",dw="",y="",djsj="",ydl="",df="";
String keyid=(String)request.getParameter("keyid");//主键编号
String sql="select * from yongdian where ydid="+keyid;//查询用电信息
ResultSet rs=null;
db.open();
rs=db.query(sql);

/*
用电信息修改页面
*/
if(rs.next()){
 yd=rs.getString("yd");//用电
dw=rs.getString("dw");//单位
y=rs.getString("y");//月
djsj=rs.getString("djsj");//登记时间
ydl=rs.getString("ydl");//用电量
df=rs.getString("df");//电费

}
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<link href="../images/skin.css" rel="stylesheet" type="text/css" />
<LINK href="../images/Admin_Style.css" type=text/css rel=stylesheet>
<LINK href="../images/style.css" type=text/css rel=stylesheet>
<script src="../js/public.js" type="text/javascript"></script>
<script language="javascript" src="../js/selectDate.js"></script>
<script language="javascript">
function checkDo(){
if(form.yd.value==""){
alert("用电不能为空");
return false;
form.yd.focus();
}

if(form.dw.value==""){
alert("单位不能为空");
return false;
form.dw.focus();
}

if(form.y.value==""){
alert("月不能为空");
return false;
form.y.focus();
}

if(form.djsj.value==""){
alert("登记时间不能为空");
return false;
form.djsj.focus();
}