vb.net - 将值从 ASP 页访问到 ASPX.VB

Question

我有 asp 页面，我从查询字符串中获取值并存储在 session 中。 代码是

username = Trim(Request.querystring("username"))
Session("login")=username
NewUserName=Session("login")

现在我想在 Asp.vb Page code is(.aspx page)中访问这个 NewUserName 值

<script type="text/javascript" language="javascript">

var login = '<%= Session["NewUserName"].ToString(); %>';
Session("login")=Login;
alert(login);

</script>

代码是（.aspx.vb）

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load



Login = Session("login")
    If Session("login") Is Nothing Then
        Response.Redirect("../Default.aspx")
    End If
    Session("qid") = 0
End Sub

但这会产生错误并且无法访问该值。

Answer 1

从 asp.net 页面访问内存中的 Classic ASPSESSION 可以做的最简单的桥接是这样的：

• 在 ASP 端：一个用于输出会话的 asp 页面，称之为 asp2netbridge.asp

  <%
  'Make sure it can be only called from local server '
  if (request.servervariables("LOCAL_ADDR") = request.servervariables("REMOTE_ADDR")) then
      if (Request.QueryString("sessVar") <> "") then
          response.write Session(Request.QueryString("sessVar"))
      end if
  end if
  %>
  

• 在.net 端，远程调用该asp 页面。：

  private static string GetAspSession(string sessionValue)
   {
      HttpWebRequest _myRequest = (HttpWebRequest)WebRequest.Create(new Uri("http://yourdomain.com/asp2netbridge.asp?sessVar=" + sessionValue));
      _myRequest.ContentType = "text/html";
      _myRequest.Credentials = CredentialCache.DefaultCredentials;
      if (_myRequest.CookieContainer == null)
          _myRequest.CookieContainer = new CookieContainer();
      foreach (string cookieKey in HttpContext.Current.Request.Cookies.Keys)
      {
          ' it is absolutely necessary to pass the ASPSESSIONID cookie or you'll start a new session ! '
          if (cookieKey.StartsWith("ASPSESSIONID")) {
              HttpCookie cookie = HttpContext.Current.Request.Cookies[cookieKey.ToString()];
              _myRequest.CookieContainer.Add(new Cookie(cookie.Name, cookie.Value, cookie.Path, string.IsNullOrEmpty(cookie.Domain)
                  ? HttpContext.Current.Request.Url.Host
                  : cookie.Domain));
          }
      }
      try
      {
          HttpWebResponse _myWebResponse = (HttpWebResponse)_myRequest.GetResponse();
  
          StreamReader sr = new StreamReader(_myWebResponse.GetResponseStream());
          return sr.ReadToEnd();
      }
      catch (WebException we)
      {
          return we.Message;
      }
  }