VS 2005 (.Net 2.0) 提供的Login1的使用方法

来源：互联网发布：excel编程入门教程编辑：程序博客网时间：2024/05/19 00:44

前台代码：

<form id="form1" runat="server"> <center> <div><asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="pro.mdb"SelectCommand="SELECT [username], [userpwd], [userrole] FROM [973user]"></asp:AccessDataSource><asp:Login ID="Login1" runat="server" BackColor="#EFF3FB" BorderColor="#B5C7DE" BorderPadding="4"BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana" Font-Size="1em"ForeColor="#333333" Height="150px" PasswordLabelText="密　码:" TitleText="项目管理登录" Width="240px" OnAuthenticate="Login1_Authenticate"><TitleTextStyle BackColor="#507CD1" Font-Bold="True" Font-Size="0.9em" ForeColor="White" /><InstructionTextStyle Font-Italic="True" ForeColor="Black" /><TextBoxStyle Font-Size="1em" /><LoginButtonStyle BackColor="White" BorderColor="#507CD1" BorderStyle="Solid" BorderWidth="1px"Font-Names="Verdana" Font-Size="1em" ForeColor="#284E98" /><LayoutTemplate><table border="0" cellpadding="4" cellspacing="0" style="border-collapse: collapse" mce_style="border-collapse: collapse"><tr><td><table border="0" cellpadding="0" style="width: 240px; height: 150px"><tr><td align="center" colspan="2" style="font-weight: bold; font-size: 0.9em; color: white;background-color: #507cd1" mce_style="font-weight: bold; font-size: 0.9em; color: white;background-color: #507cd1"><h5>项目管理登录</h5></td></tr><tr><td align="center" style="width:50px;"><asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">用户名</asp:Label></td><td align="left"><asp:TextBox ID="UserName" runat="server" Font-Size="1em" CssClass="input"></asp:TextBox><asp:RequiredFieldValidator ID="UserNameRequired" runat="server" ControlToValidate="UserName"ErrorMessage="必须填写“用户名”。" ToolTip="必须填写“用户名”。" ValidationGroup="Login1">*</asp:RequiredFieldValidator></td></tr><tr><td align="center" style="width:50px;"><asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">密　码</asp:Label></td><td align="left"><asp:TextBox ID="Password" runat="server" Font-Size="1em" TextMode="Password" CssClass="input"></asp:TextBox><asp:RequiredFieldValidator ID="PasswordRequired" runat="server" ControlToValidate="Password"ErrorMessage="必须填写“密码”。" ToolTip="必须填写“密码”。" ValidationGroup="Login1">*</asp:RequiredFieldValidator></td></tr><tr> <td align="center" style="width:50px;"> <asp:Label ID="Label1" runat="server" AssociatedControlID="Password">验证码</asp:Label></td> <td align="left"> <asp:TextBox ID="GetCode" runat="server" CssClass="input"></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="Password" ErrorMessage="必须填写“验证码”。" ToolTip="必须填写“验证码”。" ValidationGroup="Login1">*</asp:RequiredFieldValidator><asp:Image ID="Image1" runat="server" ImageUrl="~/include/GetImageCode.aspx" ImageAlign="Top" alt="看不清？点击更换" onclick="this.src=this.src+'?'" /> </td> </tr><tr><td align="center" colspan="2" style="color: red" mce_style="color: red"><asp:Literal ID="FailureText" runat="server" EnableViewState="False"></asp:Literal></td></tr><tr><td align="center" colspan="2"><asp:Button ID="LoginButton" runat="server" BackColor="White" BorderColor="#507CD1"BorderStyle="Solid" BorderWidth="1px" CommandName="Login" Font-Names="Verdana"Font-Size="1em" ForeColor="#284E98" Text="登录" ValidationGroup="Login1" /></td></tr></table></td></tr></table></LayoutTemplate></asp:Login> </div> </center> </form>

后台代码：

protected void Page_Load(object sender, EventArgs e) {Response.Cookies.Add(new HttpCookie("CheckCode", "")); }protected void Login1_Authenticate(object sender, AuthenticateEventArgs e){TextBox GetCode = Login1.FindControl("GetCode") as TextBox;//获取登陆控件中验证码文本框值if (Request.Cookies["CheckCode"].Value == null){Response.Write(@"<mce:script language=JavaScript></mce:script>");return;}else{if (String.Compare(Request.Cookies["CheckCode"].Value, GetCode.Text.ToString().Trim(), true) != 0){Response.Write(@"<mce:script language=JavaScript></mce:script>");return;}string UserLoginID = Login1.UserName.ToString().Trim().Replace("'", "").Replace("=", "");//得到输入的用户名string UserLoginPwd = Login1.Password.ToString().Trim().Replace("'", "").Replace("=", "");//得到输入的密码//得到md5值string md5Pwd = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(UserLoginPwd, "md5").ToLower();StringBuilder sb = new StringBuilder();sb.Append("select username,userpwd,lastlogintime,lastloginip,logintimes from [973user] where [username]=@username and [userpwd]=@userpwd and userrole=2");OleDbParameter[] param = {OleDbHelper.GetParameter("username",OleDbType.Char,UserLoginID),OleDbHelper.GetParameter("userpwd",OleDbType.Char,md5Pwd)};//下面部署自己的逻辑处理，以下仅供参考try{DataTable table = OleDbHelper.ExecuteDt(sb.ToString(), param);if (table.Rows.Count==0){e.Authenticated = false;//登录不通过}else{Session.Timeout = 60;Session["lastlogintime"] = table.Rows[0]["lastlogintime"].ToString();Session["lastloginip"] = table.Rows[0]["lastloginip"].ToString();Session["logintimes"] = table.Rows[0]["logintimes"].ToString();string userData = Session["lastlogintime"] + "#" + Session["lastloginip"] + "#" + Session["logintimes"];FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(1, UserLoginID, DateTime.Now, DateTime.Now.AddMinutes(60), false, userData, FormsAuthentication.FormsCookiePath);string encTicket = FormsAuthentication.Encrypt(ticket);HttpCookie newCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);HttpContext.Current.Response.Cookies.Add(newCookie);string visitIP = Request.ServerVariables["REMOTE_ADDR"].ToString();sb = new StringBuilder();sb.Append("update 973user set lastlogintime='" +DateTime.Now+"',lastloginip=@lastloginip,logintimes=logintimes+1 where username=@username");OleDbParameter[] param1 = {OleDbHelper.GetParameter("lastloginip",OleDbType.Char,15,"lastloginip",visitIP),OleDbHelper.GetParameter("username",OleDbType.Char,20,"username",UserLoginID)};OleDbHelper.ExecuteSql(sb.ToString(), param1);e.Authenticated = true;//登录通过Response.Redirect("admin_index.aspx");}}catch (Exception ex){Login1.FailureText = "数据库错误，错误原因：" + ex.Message;e.Authenticated = false;}}}