1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Web;
 5using System.Web.Security;
 6using System.Web.UI;
 7using System.Web.UI.WebControls;
 8using System.Web.UI.WebControls.WebParts;
 9using System.Web.UI.HtmlControls;
10
11public partial class _Default : System.Web.UI.Page
12...{
13
14    protected void Page_Load(object sender, EventArgs e)
15    ...{
16        //从cookie中获取身份验证票信息
17        string cookieName = FormsAuthentication.FormsCookieName;
18        HttpCookie authCookie=Context.Request.Cookies[cookieName];
19     
20        
21        if (authCookie != null)
22        ...{
23            div2.Visible = true;  
24            //解密
25           FormsAuthenticationTicket authTicket=FormsAuthentication.Decrypt(authCookie.Value);
26           Link.Text = authTicket.Name.ToString();
27           LinkRole.Text = authTicket.UserData.ToString();
28
29        }
30        else
31        ...{ div2.Visible = false; }
32    }
33
34    protected void login_Click(object sender, ImageClickEventArgs e)
35    ...{
36        if (txtid.Text != "" && txtpwd.Text != "")
37        ...{
38            string UserName =txtid.Text.Trim();
39            string UserPwd = txtpwd.Text.Trim();
40
41            DataVisit mydv = new DataVisit();//创建访问层的类
42            if (mydv.Confirm(UserName, UserPwd))//验证用户是否合法
43            ...{
44                string UserRoles = mydv.GetRoles(UserName);//获取用户角色的字符串
45                //建立身份验证票据对象
46                FormsAuthenticationTicket Ticket = new FormsAuthenticationTicket(1, UserName, DateTime.Now, DateTime.Now.AddHours(1), false, UserRoles, "/");
47                //加密序列化验证票为字符串
48                string HashTicket = FormsAuthentication.Encrypt(Ticket);
49                //创建cookie
50                HttpCookie UserCookie = new HttpCookie(FormsAuthentication.FormsCookieName,HashTicket);
51                //输出cookie
52                Context.Response.Cookies.Add(UserCookie);
53               // div2.Visible = true;
54                Context.Response.Redirect( "Default.aspx");
55                   
56                
57
58
59            }
60            else
61            ...{
62                txtid.Text = "不正确！用户名或密码";
63
64            }
65
66        }
67    }
68
69 protected void Linkout_Click(object sender, EventArgs e)
70    ...{
71        System.Web.Security.FormsAuthentication.SignOut();
72        Response.Redirect("Default.aspx");
73    }
74
75
76
77
78    protected void register_Click(object sender, ImageClickEventArgs e)
79    ...{
80        Response.Redirect("Register.aspx");
81    }
82 
83}