Need help with Telnet command in JSP

Question

Here is the code I have been working on but it will not display the buffer to the page..
String [] cmd1 = {"cmd.exe","/c","telnet hqsun1.xx.xxxxx.com"};
          Process n;
          String T = "" ;
          n = Runtime.getRuntime().exec(cmd1);
          BufferedReader in1 =
          new BufferedReader(new InputStreamReader(
          n.getInputStream()));
          while((T=in1.readLine()) != null)
          out.println(T+"");
Maybe someone has done this before? I am trying to acomplish a telnet net session to the screen with some exicuted commands, because this tool is going to be used to help determine system status when the help desk needs to check on something.
Thanks

Answer 1

I don't want to be discouraging, but I'm not quite sure you've thought the problem through. You say that you'd like to create a web page capable of providing various pieces of information to the help desk, and you suggest ping and the output of various canned telnet commands as examples.
What is preventing the help desk from just executing those commands at the command prompt?
I realize that the people working the help desk are (ahem) there for a reason, but it is really much faster for me to just simply type "ping www.mpalfrey.com" at the prompt, then it is for me to fire up the web browser and wait for a response that way. You will likewise find that it is a lot more convenient to perform diagnosis on remote machines directly from the command prompt.
Uh, it's kind of like giving someone a screwdriver, then saying, "oh wait a second" and making them wear an oven mitt in order to use the screwdriver.
But, if you really want to do it this way, the best thing to do is create a wrapper class that directly calls the system command and captures the output to a stringbuffer. Then your JSP page simply has to clone that wrapper via a new() command and trigger it if you go the singleton route. The code would look something like this...
<%@ import page="com.mpalfrey.shellcommands.ping" %>
<%
   myPing foo = new myPing( request.getParameter( "victim" ) );
   foo.trigger();
%>
Ping results:
<%=foo.results()%>JSP can do a lot of wonderful things, but that doesn't mean you have to do it that way. :)