asp.net 实现登陆实例

登陆页面的代码

 <form id="form1"  action="login.aspx" method="post">
    <div>
   
        <table style="width:100%;">
            <tr>
                <td class="style3">
                </td>
                <td class="style4">
                    <input id="Text1" name="tstUserName" type="text" /></td>
                <td class="style5">
                </td>
            </tr>
            <tr>
                <td class="style6">
                </td>
                <td class="style7">
                    <input id="Text2" name="txtUserPwd" type="text" /></td>
                <td class="style8">
                </td>
            </tr>
            <tr>
                <td class="style9">
                </td>
                <td class="style10">
                    <input id="btnlogin" type="submit" value="提交" /></td>
                <td class="style11">
                </td>
            </tr>
        </table>

处理页面的代码 :

 string userName = Request.Form["tstUserName"].ToString();
        string userPwd = Request.Form["txtUserPwd"].ToString();
        Response.Write("你的登录名为" + userName);
        SqlConnection con = new SqlConnection("server=.;database=login;uid=sa;pwd=sa;");
        con.Open();
        SqlCommand cmd = new SqlCommand("select  count(*) from login where userName='"+userName+"'and userPwd='"+userPwd+"'",con);
        int count =Convert.ToInt32(cmd.ExecuteScalar());
        if(count>0)
        {
           Response.Write("登陆成功");
        }
        else
        {
           Response.Write("登陆失败");
        }

入门asp.net 代码分析,vagabond

附加 数据脚本文件

create database login

use login

create table login  (
           userName   varchar(20)  not null primary key,
           userPwd    varchar(20)  not null,
           userIdentity varchar(20) not null,
 
)

insert into login values ('tjc','123','管理员')

select * from login