login.aspx HTML代码
login.aspx.cs代码如下
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(30),this.PersistCookie.Checked,"User");//创建一个验证票据
string cookieStr = FormsAuthentication.Encrypt(ticket);进行加密
HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName,cookieStr);创建一个cookie,cookie名为web.config设置的名,值为加密后的数据cookieStr,
if (this.PersistCookie.Checked)//判断用户是否选中保存cookie
cookie.Expires = ticket.Expiration;//获取cookie过期时间
cookie.Path = FormsAuthentication.FormsCookiePath;//设置cookie保存路径
Response.Cookies.Add(cookie);
string strRedirect;
strRedirect = Request["ReturnUrl"];//取出返回url
if (strRedirect == null)
strRedirect = "Default.aspx";
Response.Redirect(strRedirect,true);
}
else
{
Response.Write("<script>alert('帐号或密码错误!');self.location.href='02login.aspx'</script>");
}
}
Default.aspx HTML代码
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<FONT face="宋体">
<asp:Label id="Label1" style="Z-INDEX: 106; LEFT: 224px; POSITION: absolute; TOP: 72px" runat="server">用户名称:</asp:Label>
<asp:Label id="Label2" style="Z-INDEX: 102; LEFT: 220px; POSITION: absolute; TOP: 136px" runat="server">身份:</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="注销" Width="101px"></asp:Button></FONT>
</form>
</body>
后置代码
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 窗体设计器生成的代码
private void btnLogout_Click(object sender, System.EventArgs e)
{
FormsAuthentication.SignOut();//注销票
Response.Redirect("login.aspx",true);返回login.aspx页面
}
webconfig配置如下
<authentication mode="Forms" >
<forms name=".SecurityDemo" loginUrl="login.aspx">//.SecurityDemo为cookie名,
</forms>
</authentication>
<authorization>
<deny users="?"/> //拒绝所有匿名用户
<allow roles="admins"/>//允许管理级别用户访问
</authorization>
自我感觉ASP写多了,一般是用session进行判断用户是否合法,但在一个ASP.NET项目中使用身份验证,基本上所有页面都要验证才能访问,可以在web.config页面对指定的页面设置权限,设置代码如下
<location path="admin">
<system.web>
<authorization>
<deny users="*" />
<allow roles="paley"/>
</authorization>
</system.web>
</location>
已看资料修如上.对admin文件夹设置权限,拒绝所有用户,允许paley访问
转自:http://www.cnblogs.com/paleyyang/archive/2006/10/21/536147.html
本文介绍了一个ASP.NET项目中实现身份验证的过程,包括登录界面的设计、登录逻辑的处理、使用Forms Authentication进行用户验证及权限设置。

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