mylogin.ascx.cs

本程序基于 asp.net 2.0 +sql server 2

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 lalablog;
public partial class ascx_mylogin : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
        welcome.Visible = false;
        if (Session["userid"] != null)
        {
            tb_password.Visible = false;
            tb_username.Visible = false;
            Label1.Visible = false;
            Label2.Visible = false;
            btnLogin.Visible = false;
            welcome.Visible = true;
            welcome.Text = "欢迎您!" + Session["username"].ToString();
        }

    }
    protected void btnLogin_Click(object sender, EventArgs e)
    {
        string username = Server.HtmlEncode(tb_username.Text.ToString());
        string password = Server.HtmlEncode(tb_password.Text.ToString());

        if (username.Length > 0 && password.Length > 0)
        {
            password = FormsAuthentication.HashPasswordForStoringInConfigFile(password, "SHA1");
            string loginip = Request.UserHostAddress;
            bloguser user1 = new bloguser(username, password, loginip);

            string x = user1.login();

            /*如果返回信息是success，可以正常登陆*/
            if (x == "success")
            {
                Session["userid"] = user1.getuserid();
                Session["username"] =user1.getusername();
                tb_password.Visible = false;
                tb_username.Visible = false;
                Label2.Visible = false;
                Label1.Visible = false;
                btnLogin.Visible = false;
                welcome.Text = "欢迎您!" + Session["username"].ToString ();
               // Response.Redirect("~/read.aspx?userid=" + Session ["userid"].ToString ());
            }
            else
            {
                myfunc m1 = new myfunc(x);
                Response.Write(m1.JavaMsg());
            }
        }
            /*用户名或者密码的长度小于1*/
        else 
        {
            myfunc m1 = new myfunc("用户名还是密码忘输了吧");
            Response.Write(m1.JavaMsg());
        }
    }

    protected void btnLogout_Click(object sender, EventArgs e)
    {        
        Session["userid"] = null;
        Session["username"] = null;
        tb_password.Visible = true;
        tb_username.Visible = true;
        Label2.Visible = true;
        btnLogin.Visible = true;
        Label1.Visible = true;
        welcome.Text = "";
    }
    protected void btn_add_blog_Click(object sender, EventArgs e)
    {
        if (Session["userid"] != null)
            Response.Redirect("user/user_add_blog.aspx");
        else
        {
            myfunc m1 = new myfunc("您还没有登陆");
            Response.Write(m1.JavaMsg());
        }

    }
    protected void btn_forget_pass_Click(object sender, EventArgs e)
    {
        Response.Redirect("userFindPass.aspx");
    }
    protected void btnReg_Click(object sender, EventArgs e)
    {
        Response.Redirect("user_reg.aspx");
    }
    protected void btnManage_Click(object sender, EventArgs e)
    {
        if (Session["userid"] != null)
            Response.Redirect("user/user_manage_blog.aspx");
        else
        {
            myfunc m1 = new myfunc("您还没有登陆");
            Response.Write(m1.JavaMsg());
        }

    }
}