如何对asp.net中的登录页面进行身份验证

问题描述：

在我的项目中，输入凭据时，我有login.aspx页和welcome.aspx页
并登录，导航到welcome.aspx页面，在welcome.aspx页面中，我有注销按钮，当我单击注销按钮时，它导航到login.aspx.但是在浏览器中，我单击按钮，它正在导航到welcome.aspx页面.所以我想清除cookie或会话，该怎么做
给我发送示例..

Hi,
in my project i have login.aspx page and welcome.aspx page, when enter the credentials
and logged in, navigated to welcome.aspx page and in welcome.aspx page i have logout button, when i clicked on logout button, it navigated to login.aspx.but in browser i clicked button it is navigating to welcome.aspx page. so i want to clear the cookie or session, how to do this
send me the example..

答

请参考以下代码，

成功登录后，添加以下代码以在会话中添加用户数据.

Please refer following code,

After successful login add following code to add user data in session.

HttpContext.Current.Session["UserID"] = data.UserId;
        HttpContext.Current.Session["Email"] = data.Email;

在母版页中添加以下代码.

Add following code in master page.

public bool checkAuthentication
    {
        get;
        set;
    } 

protected void Page_Load(object sender, EventArgs e)
    {        
        if (checkAuthentication)
        {
            if ((Session["UserID"] + "") == "")
            {
                Response.Write("<script type=\"text/javascript\">" +
                        "window.parent.location = '" + ConfigurationManager.AppSettings["SiteUrl"] + "login?loginUrl=' + window.parent.location + '&mode=session';" +
                                "</script>");
                Response.End();
            }
        }
}

在要验证用户会话的每个子页面中添加以下代码.

Add following code in each child page where you want to authenticate user session.

protected void Page_PreInit(object sender, EventArgs e)
    {
        this.Master.checkAuthentication = true;
    }

单击注销按钮时，重定向到注销页面.
在logout.aspx的页面加载中添加以下代码

On click of logout button redirect to logout page.
Add following code on page load of logout.aspx

protected void Page_Load(object sender, EventArgs e)
   {
       Session.Abandon();
       Response.Redirect(ConfigurationManager.AppSettings["SiteUrl"] + "login?mode=logout",true);
   }

希望这会对您有所帮助.

Hope this may help you.

拥有一个web.config可以防止用户登录后进入欢迎页面.

或者在welcome.aspx.cs page_load中检查是否没有用户登录到重定向到登录页面.

Have a web.config to prevent the user to access the welcome page unless he is logged in.

alternatively in welcome.aspx.cs page_load check if no user is logged in redirect to login page.

如何对asp.net中的登录页面进行身份验证

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