Pass Javascript variable to servlet doGet method

Question

I have a javascript function to retrieve the users workstation like the one here. How can I read the client's machine/computer name from the browser?

My question is, how can I pass the computername (result from the function) to the servlets doGet() method?

Currently my code (snippet) that calls the servlet is as follows:

    <html>
    <head> .... <script> load my javascript file here </script></head>
    <%
      if(session.getAttribute("Login") == null){
         //I want to pass the computer name here
         response.sendRedirect("../LOGME");
      } else {
        //draw page body
      } %>
     </html>

how are you calling servlet? just pass it as query params. `setletPath?computerName=xyz` — Braj, Jul 21 '14 at 18:09
@GoAlves It depends where did you use it. Currently as it has written it's difficult to tell you about it. Please clarify the question with details. — Roman C, Jul 21 '14 at 18:41
Hi! I have edited my question with a code snippet to better illustrate the topic. Thanks! — GoAlves, Jul 22 '14 at 06:50
@Braj I don't have any buttons. The page gets redirected automatically if the Login attribute is null when the user opens the page. — GoAlves, Jul 22 '14 at 06:51

score 0 · Answer 1 · answered Aug 02 '14 at 17:18

Let the client redirect.

<%
  if(session.getAttribute("Login") == null){ %>
     <script>
         location.href = "../LOGME?name=" + yourValue;
     </script>
 <% return; // you should check the return ...
  } else {
    //draw page body
  } %>

Won't work on my machine though. I'm on Linux, so no f... ActiveX.

Pass Javascript variable to servlet doGet method

1 Answers1