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一个简单的ASP.NET Forms 身份认证

2004-12-10 01:08 706 查看

当访问默认首页default.aspx时，会自动跳转到login.aspx页面上请求登录，随便输入用户名和密码，点击“登录”按钮，会回到首页，并显示当前登录的用户名。

Web.config

<configuration>

<system.web>

  <compilation debug="true"/>

  <authentication mode="Forms">

   <forms loginUrl="login.aspx" name = ".ASPXFORMSAUTH" />

  </authentication>

  <authorization>

   <deny users="?"/>

  </authorization>

</system.web>

</configuration>

default.aspx

<HTML>

<HEAD>

<TITLE>首页</TITLE>

<script language="VB" runat="server">

Sub Page_Load(Sender As Object, e As EventArgs)

  Message.Text = String.Format("你好，{0}", Context.User.Identity.Name)

End Sub

sub btnSignout_Click(Sender as Object, E as EventArgs)

  FormsAuthentication.SignOut()

  Response.Redirect("login.aspx")

end sub

</script>

</HEAD>

<BODY>

<asp:label id="Message" runat="server"/>

<br>

<form method="post" runat="server">

<asp:button id="btnSignout" Text="退出登录" runat="server" OnClick="btnSignout_Click"/>

</form>

</BODY>

</HTML>

login.aspx

<HEAD>

<TITLE>首页</TITLE>

<script lanugage="c#" runat="server">

private void Page_Load(object sender, EventArgs e)

{

  if (Request.IsAuthenticated)

    Response.Redirect("default.aspx");

}

void btnLogin_Click(Object sender, EventArgs e)

{

  if (txtUsername.Text != null && txtUsername.Text != String.Empty && txtPassword.Text != null && txtPassword.Text != String.Empty)

   FormsAuthentication.RedirectFromLoginPage(txtUsername.Text, true);

  else

   lblError.Text = "错误的用户名/密码";

}

</script>

</HEAD>

<BODY>

<form method="post" runat="server">

<asp:Label id="lblUsername" runat="server" Text="用户名："/>



<asp:Textbox id="txtUsername" runat="server"/>

<br>

<br>

<asp:Label id="lblPassword" runat="server" Text="密　码："/>



<asp:Textbox id="txtPassword" runat="server" TextMode="password"/>

<br>

<asp:button id="btnLogin" runat="server" Text="登录" OnClick="btnLogin_Click" />

</form>

<hr>

<br>

<asp:Label id="lblError" forecolor="red" runat="server"/>

</BODY>

</HTML>

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标签： forms asp.net server asp textbox authorization

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