散步在海洋中的碼農

1. 建一隻basepage 其他的...aspx繼承這支basepage

2.basepage繼承  System.Web.UI.Page

3. 複寫 basepage onload方法

   public class BasePage : System.Web.UI.Page
    {
  protected override void OnPreLoad(EventArgs e)
        {       
   string msg = "666666!!";
            string gourl = "http://google.com.tw";
            if (HttpContext.Current.User.Identity == null)
            {
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.Write("<script>alert(\"" + msg.Replace("\"", "\\\"") + "\");window.location.href='" + gourl + "'</script>");
                NoExceptionResponseEnd();
            }

            if (User.Identity.IsAuthenticated == false)  //驗證是否有登入過
            {
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.Write("<script>alert(\"" + msg.Replace("\"", "\\\"") + "\");window.location.href='" + gourl + "'</script>");
                NoExceptionResponseEnd();          
            }

          base.OnPreLoad(e);
 }


        /// <summary>
        /// 避免 ThreadAbortException 的Response.End() 替代寫法
        /// </summary>
        public void NoExceptionResponseEnd()
        {
            // https://blog.darkthread.net/blog/response-end-alternative/
            //https://stackoverflow.com/a/22363396/288936
            //將Buffer中的內容送出
            HttpContext.Current.Response.Flush();
            //忽視之後透過Response.Write輸出的內容
            HttpContext.Current.Response.SuppressContent = true;
            //忽略之後ASP.NET Pipeline的處理步驟，直接跳關到EndRequest
            HttpContext.Current.ApplicationInstance.CompleteRequest();
        }
}

資料來源參考如下

ASP.NET页面跳转

https://www.geek-share.com/detail/2482735161.html

黑暗大大說明 response end的替代方式

https://blog.darkthread.net/blog/response-end-alternative/     

 

以上文章僅用紀錄資料使用.....