📄 index.jsp
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<%@ page contentType="text/html; charset=GBK" %>
<jsp:useBean id="Xhxx" scope="request" class="dl.Xhxx" />
<%@ page import= "sun.jdbc.rowset.*;" %>
<%@ page import="java.sql.*" %>
<%request.setCharacterEncoding("GBK");
//定义 请求执行的程序执行后的结果 被服务器返回后在页面中的显示方式
%>
<%
String doCreate = request.getParameter("doCreate"); //得到隐藏域的值
String uname = request.getParameter("uname");
String pwd = request.getParameter("pwd");
if (doCreate==null){doCreate="false";}
if (doCreate.equals("true")) //这说明提交过来了数据
{
CachedRowSet resultPage=null;
resultPage=Xhxx.getRowSet("select * from xhxx where uname='"+uname+"'"); //发送请求：执行sql语句
if (resultPage.next()){
resultPage=Xhxx.getRowSet("select * from xhxx where uname='"+uname+"' and pwd='"+pwd+"'"); //发送请求：执行sql语句
//如果执行sql语句得到一条记录将执行下面的判断中的程序
if (resultPage.next()){
//登陆成功处理
String tname=resultPage.getString("tname");
session.setAttribute("tname", tname);//建立会话获取服务器返回过来的字段的值
session.setAttribute("uname", uname);
response.sendRedirect("ok.jsp");//转到登陆成功页面
return;
}
}
//如果执行sql语句后没有一条记录服务器将不会返回执行结果同时将执行下面的js程序
%>
<script language="javascript">
alert("用户名或者密码错误!"); //出错提示
history.back(); //返回本页面
</script>
<%}%>
<html>
<head>
<META http-equiv=Content-Type content="text/html; charset=GBK">
<title>用户登录</title>
<style type="text/css">
<!--
td {
font-size: 12px;
}
-->
</style>
<link href="images/style.css" rel="stylesheet" type="text/css">
<script language = "javascript">
function check()
{
if (document.form1.uname.value==""){
alert("请输入用户名");
document.form1.uname.focus();
return false;}
if(document.form1.pwd.value==""){
alert("请输入你的密码");
document.form1.pwd.focus();
return false;}
return true;
}
</script>
</head>
<body bgcolor="#0041de" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<br>
<br>
<br>
<br>
<table width="688" height="421" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td valign="bottom" background="images/denglu1.gif">
<table width="438" height="211" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td align="center" valign="top">
<form name="form1" method="post" action="" onsubmit="return check();">
<table width="285" height="46" border="0" cellpadding="0" cellspacing="0">
<tr align="center">
<td width="140" height="21"><font color="#006699">用 户</font></td>
<td width="140"><font color="#006699">密 码</font></td>
</tr>
<tr align="center">
<td>
<input name="uname" type="text" class="box" id="u1" size="17"></td>
<td>
<input name="pwd" type="password" class="box" id="p1" size="17"></td>
</tr>
</table>
<table width="248" height="35" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td valign="top">
<input type="image" src="images/button.gif" width="234" height="35" name="submit" value="提交">
<input type="hidden" name="doCreate" value="true"></td>
</tr>
</table>
</form>
<table width="220" height="32" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="50%" valign="bottom"><font color="#FFCC66"><strong>用户注册</strong></font></td>
<td width="50%" align="right" valign="bottom"><font color="#FFCC33"><strong>忘记密码</strong></font></td>
</tr>
<tr>
<td height="21" colspan="2"><font color="#FFCC33">为了您注册信息的安全，请注意</font><font color="#FF6633"><strong>修改密码</strong></font></td>
</tr>
</table>
</td>
</tr>
</table></td>
</tr>
</table>
<br>
<br>
</body>
</html>
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