本文实例讲述了C#实现的WINDOWS登录功能。分享给大家供大家参考，具体如下：
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Runtime.InteropServices;
using System.Security.Principal;
namespace yutest
{
public partial class _Default : System.Web.UI.Page
{
[DllImport( "advapi32.dll" , CharSet = CharSet.Auto)]
public static extern bool LogonUser( string lpszUsername, string lpszDomain, string lpszPassword, int dwLogonType, int dwLogonProvider, out int phToken);
protected void Page_Load( object sender, EventArgs e)
{
string aaa = System.Threading.Thread.CurrentPrincipal.Identity.Name;
//string bbb = System.Threading.Thread.CurrentPrincipal.Identity.n;
//System.Environment.UserDomainName
//System.Environment.UserName
}
protected void Button1_Click( object sender, System.EventArgs e)
{
//验证用户的输入是否为空
if (tDomain.Text.Trim().Length > 0 && tUserName.Text.Trim().Length > 0&& tPassword.Text.Trim().Length > 0)
{ //调用函数Login(string UserName, string Password, string Domain)
//实现Windows登录
if (Login(tUserName.Text.Trim(), tPassword.Text.Trim(),tDomain.Text.Trim()) == true )
{ //显示登录成功信息
LoginMsg.Text = "登录成功！！！" ;
LoginMsg.Visible = true ;
return ;
}
else
{ //显示登录失败信息
LoginMsg.Text = "登录失败，请重新输入用户名称、密码及其系统域名！！！" ;
LoginMsg.Visible = true ;
}
}
}
private bool Login( string UserName, string Password, string Domain)
{ //获取用户名称和系统域名
string text1 = Domain.Trim();
string text2 = UserName.Trim();
text2 = text2.Replace( "/" , @"\" ); //处理符号[/]
int num1 = text2.IndexOf( '\\' ); //获取符号[\]的索引
if (num1 != -1)
{ //格式化用户名称和系统域名
text1 = text2.Substring(0, num1);
text2 = text2.Substring(num1 + 1);
}
else
{ //格式化用户名称和系统域名
num1 = text2.IndexOf( '@' );
if (num1 != -1)
{
text1 = text2.Substring(num1 + 1);
text2 = text2.Substring(0, num1);
}
}
//调用函数AuthenticateUser()实现用户Windows登录
return AuthenticateUser(text2, Password.Trim(), text1);
}
private bool AuthenticateUser( string UserName, string Password, string Domain)
{ //设置用户登录成功的标志
bool flag1 = false ;
try
{
int num1; IntPtr ptr1;
//调用Windows登录的API
if (!LogonUser(UserName, Domain, Password, 2, 0, out num1))
{ //返回登录结果
return flag1;
}
//调用.NET中的Windows登录
ptr1 = new IntPtr(num1);
WindowsIdentity identity1 = new WindowsIdentity(ptr1);
WindowsPrincipal principal1 = new WindowsPrincipal(identity1);
HttpContext.Current.User = principal1;
//设置系统Cookie和重定向页面
FormsAuthentication.SetAuthCookie(principal1.Identity.Name, false );
FormsAuthentication.RedirectFromLoginPage(UserName, false );
flag1 = true ;
}
catch (Exception) { }
return flag1;
}
}
}
希望本文所述对大家C#程序设计有所帮助。
dy("nrwz");
查看更多关于C#实现的WINDOWS登录功能示例的详细内容...