asp.net身份验证和授权

发布时间：2006-10-23 09:55:00　来源：友佳学院网友评论 0 条

今天闲着无聊．想起来了ASP.NET身份验证．感觉良好．贴出下列代码:
login.aspx HTML代码

1<%@ Page language="c#" Codebehind="02Login.aspx.cs" AutoEventWireup="false" Inherits="身份验证._02Login" %> 2<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > 3<HTML> 4 <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"> 10 </HEAD> 11 <body MS_POSITIONING="GridLayout"> 12 <form id="Form1" method="post" runat="server"> 13 <FONT face="宋体"> 14 <TABLE id="Table1" style="Z-INDEX: 102; LEFT: 152px; WIDTH: 446px; POSITION: absolute; TOP: 80px; HEIGHT: 72px" 15 cellSpacing="1" cellPadding="1" width="446" border="1"> 16 <TR> 17 <TD> 18 <asp:label id="Label1" runat="server">用户名称：</asp:label></TD> 19 <TD> 20 <asp:textbox id="tbName" runat="server" Width="183px"></asp:textbox></TD> 21 <TD> 22 <asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server" ErrorMessage="用户名不能为空！" ControlToValidate="tbName"></asp:requiredfieldvalidator></TD> 23 </TR> 24 <TR> 25 <TD> 26 <asp:label id="Label2" runat="server">密码：</asp:label></TD> 27 <TD> 28 <asp:textbox id="tbPass" runat="server" Width="183px"></asp:textbox></TD> 29 <TD> 30 <asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server" ErrorMessage="密码不能为空！" ControlToValidate="tbPass"></asp:requiredfieldvalidator></TD> 31 </TR> 32 <TR> 33 <TD><FONT face="宋体">是否保存Cookie</FONT></TD> 34 <TD> 35 <asp:checkbox id="PersistCookie" runat="server"></asp:checkbox></TD> 36 <TD></TD> 37 </TR> 38 </TABLE> 39 <asp:button id="btnLoginBetter" style="Z-INDEX: 101; LEFT: 288px; POSITION: absolute; TOP: 240px" 40 runat="server" Width="78px" Text="登录"></asp:button> 41 <asp:HyperLink id="HyperLink1" style="Z-INDEX: 103; LEFT: 456px; POSITION: absolute; TOP: 240px" 42 runat="server" NavigateUrl="Default.aspx">HyperLink</asp:HyperLink></FONT> 43 </form> 44 </body> 45</HTML> 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#region Web 窗体设计器生成的代码 override protected void OnInit(EventArgs e) { // // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。 // InitializeComponent(); base.OnInit(e); } /**//// <summary> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// </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();//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，感觉有点迁强.但可以在web.config页面对指定的页面设置权限,设置代码如下
<location path="admin.aspx">
<system.web>
<authorization>
<deny users="?" />
</authorization>
</system.web>
</location>
如果只有几个页面设置如上代码,感觉还可以接受.但页面多了岂不是要把人累死呀．．
可能是小的项目做多了,大项目没接触过.请高手给指点具体用途呀．不甚感激

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