Today I'm bored with leisure. I remember. asp.net authentication. Feel good. Post the following code:
Login.aspx HTML code
1<%@ Page language= "C #" codebehind= "02login.aspx.cs" autoeventwireup= "false" inherits= "authentication. _02login"%>
2<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 transitional//en" >
34 <HEAD>
5 <title>02Login</title>
6 <meta name= "generator" content= "Microsoft Visual Studio. NET 7.1" >
7 <meta name= "Code_language" content= "C #" >
8 <meta name= "vs_defaultClientScript" content= "JavaScript" >
9 <meta name= "vs_targetschema" content= "http://schemas.microsoft.com/intellisense/ie5" >
Ten </HEAD>
One <body ms_positioning= "GridLayout" >
<form id= "Form1" method= "POST" runat= "Server" >
<font face= "Song Body" >
<table id= "Table1" style= "z-index:102; left:152px; width:446px; Position:absolute; top:80px; Height:72px "
cellspacing= "1" cellpadding= "1" width= "446" border= "1" >
<TR>
<TD>
<asp:label id= "Label1" runat= "Server" > User name:</asp:label></td>
<TD>
<asp:textbox id= "Tbname" runat= "Server" width= "183px" ></asp:textbox></TD>
<TD>
<asp:requiredfieldvalidator id= "RequiredFieldValidator1" runat= "server" errormessage= "username Can't be empty! "Controltovalidate=" Tbname "></asp:requiredfieldvalidator></TD>
</TR>
<TR>
<TD>
<asp:label id= "Label2" runat= "server" > Password:</asp:label></td>
<TD>
<asp:textbox id= "Tbpass" runat= "Server" width= "183px" ></asp:textbox></TD>
<TD>
<asp:requiredfieldvalidator id= "RequiredFieldValidator2" runat= "server" errormessage= "Password not Can be empty! "Controltovalidate=" Tbpass "></asp:requiredfieldvalidator></TD>
</TR>
<TR>
<td><font face= "Song body" > Whether to save cookie</font></td>
<TD>
<asp:checkbox id= "Persistcookie" runat= "Server" ></asp:checkbox></TD>
<TD></TD>
Panax Notoginseng </TR>
</TABLE>
<asp:button id= "Btnloginbetter" style= "Z-INDEX:101; left:288px; Position:absolute; top:240px "
runat= "Server" width= "78px" text= "Login" ></asp:button>
<asp:hyperlink id= "HyperLink1" style= "z-index:103; left:456px; Position:absolute; top:240px "
runat= "Server" Navigateurl= "default.aspx" >HyperLink</asp:HyperLink></FONT>
</form>
</body>
45The Login.aspx.cs code is as follows
private void Btnloginbetter_click (object sender, System.EventArgs e)
{
if (This.tbName.Text = "admin" && this.tbPass.Text = = "Admin")
{
FormsAuthenticationTicket ticket = new FormsAuthenticationTicket (1,this.tbname.text,datetime.now, DateTime.Now.AddMinutes (a), this. persistcookie.checked, "User");//Create a validation ticket
String cookiestr = Formsauthentication.encrypt (ticket);
HttpCookie cookie = new HttpCookie (FORMSAUTHENTICATION.FORMSCOOKIENAME,COOKIESTR), create a cookie, The cookie name is the name of the Web.config setting, and the value is the encrypted data cookiestr,
if (this. persistcookie.checked)//Determines whether the user selects Save cookies
Cookie. Expires = ticket. expiration;//Get Cookie Expiration time
Cookie. Path = formsauthentication.formscookiepath;//Set Cookie save path
RESPONSE.COOKIES.ADD (cookie);
String strredirect;
strredirect = request["ReturnUrl"];//fetch return URL
if (strredirect = null)
strredirect = "default.aspx";
Response.Redirect (strredirect,true);
}
Else
{
Response.Write ("<script>alert (' account number or password is wrong! '); self.location.href= ' 02login.aspx ' </script> ');
}
}
Default.aspx HTML code
<body ms_positioning= "GridLayout" >
<form id= "Form1" method= "POST" runat= "Server" >
<font face= "Song Body" >
<asp:label id= "Label1" style= "z-index:106; left:224px; Position:absolute; top:72px "runat=" server > User name:</asp:label>
<asp:label id= "Label2" style= "z-index:102; left:220px; Position:absolute; TOP:136PX "runat=" Server > Identity:</asp:label>
<asp:label id= "Lbuser" style= "z-index:103; left:350px; Position:absolute; TOP:79PX "runat=" Server ></asp:Label>
<asp:label id= "LBSF" style= "z-index:104; left:355px; Position:absolute; TOP:133PX "runat=" Server ></asp:Label>
<asp:button id= "Btnlogout" style= "z-index:105; left:261px; Position:absolute; Top:192px "
runat= "Server" text= "Logoff" width= "101px" ></asp:Button></FONT>
</form>
</body>
Post Code
private void Page_Load (object sender, System.EventArgs e)
{
This.lbUser.Text = User.Identity.Name;
if (User.IsInRole ("Admin"))
This.lbSf.Text = "Admin";
Else
This.lbSf.Text = "User";
}
Web Forms Designer generated Code #region Web Forms Designer generated code
Override protected void OnInit (EventArgs e)
{
//
CodeGen: This call is required for the ASP.net Web forms Designer.
//
InitializeComponent ();
Base. OnInit (e);
}
/**////<summary>
Designer supports required methods-do not use the Code editor to modify
The contents of this method.
</summary>
private void InitializeComponent ()
{
This.btnLogout.Click + = new System.EventHandler (This.btnlogout_click);
This. Load + = new System.EventHandler (this. Page_Load);
}
#endregion
private void Btnlogout_click (object sender, System.EventArgs e)
{
FormsAuthentication.SignOut ()//Cancellation ticket
Response.Redirect ("Login.aspx", true); return login.aspx page
}
The
Webconfig configuration is as follows
<authentication mode= "Forms"
<forms name=. Securitydemo "loginurl=" Login.aspx ">//. Securitydemo is the cookie name,
</forms>
</authentication>
<authorization>
<deny users= "?" />//Deny all anonymous users
<allow roles= "admins"/>//allows administrative level user access
</authorization>
Self-feel ASP write more, generally use session to judge whether the user is legitimate, but in a asp.net project using authentication, basically all the pages have to verify to access, feel a little move strong. However, you can set permissions on the specified page on the Web.config page, setting the code as follows
<location path= "Admin.aspx" >
<system.web>
<authorization>
<deny users= "?"/>
</authorization>
</system.web>
</location>
If you have only a few pages set up as code, it feels acceptable. But the page is too much to make people tired ah.
May be a small project to do more, big items have not been contacted. Please give the expert to the specific use of. Not very grateful.
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