<!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=utf-8" /> <title>login</title> </head> <body> <form method="post" action="login.asp"> username:<input type="text" name="username" /> password:<input type="password" name="password" /> <input type="submit" value="login" /> </form> </body> </html>
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<!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=utf-8" />
<title>login</title>
</head>
<body>
<%
'向把login.html传过来的两个信息用变量保存起来
username=Request.Form("username")
password=Request.Form("password")
'数据库是上一级目录的Database.mdb
%>
<%
db="../Database.mdb"
'连接数据库指定动作,这段必须独立地占用一个<%%>否则在某些情况下IE8会出错
Set conn = Server.CreateObject("ADODB.Connection")
conn.Open "driver={Microsoft Access Driver (*.mdb)};pwd=admin;dbq=" & Server.MapPath(db)
%>
<%
Set rs = Server.CreateObject( "ADODB.Recordset" )
'看表中是否有此username
sql = "select * from test where username='"+username+"';"
rs.open sql,conn,1,3
'如果什么都查不到,弹窗,弹回login.html
if (rs.bof and rs.eof) then
%>
<script>
alert("查无此人");
window.location.href = "login.html";
</script>
<%
'否则拿查出来的密码,与用户输入的密码作对比,看是否一致
'查出来的密码必须先用一个变量接住,在ASP中不能直接比较
else
dbpwd=rs("password")
'如果不一致,则弹窗,ASP没有!=,表示不等于请用<>
if password<>dbpwd then
%>
<script>
alert("密码错误");
window.location.href = "login.html";
</script>
<%
else
'如果用户名密码都输入正确,则有此用户,timeout是为了防止用户非正常退出的,如果5分钟没有任何操作则判定其已经退出,ok是正常登陆的标志
Session.Timeout=5
Session("username")=username
Session("login")="ok"
%>
<script>
alert("登陆成功");
window.location.href = "success.asp";
</script>
<%
end if
end if
'用完数据库记得关
rs.close
set rs=nothing
conn.close
set conn=nothing
%>
</body>
</html>
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<!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=utf-8" />
<title>欢迎登陆</title>
</head>
<body>
<%
if Session.Contents("login")<>"ok" then
%>
<script>
alert("请正常登陆!");
window.location.href = "login.html";
</script>
<%
else
Response.Write("欢迎登陆,"+Session.Contents("username"))
end if
%>
<a href="exit.asp">正常退出</a>
</body>
</html>
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%> <!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=utf-8" /> <title>正在退出...</title> </head> <body> <% '所有session立即超时,并且移除所有session Session.Abandon Session.Contents.RemoveAll() %> <script> window.location.href = "login.html"; </script> </body> </html>
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