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Please read the FAQ!
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On Mon, 20 September 1999, "Craig R. McClanahan" wrote:
>
> -----------------------------
> Please read the FAQ!
> <http://java.apache.org/faq/>
> -----------------------------
>
> [EMAIL PROTECTED] wrote:
>
> > > >
> > > Apache does it for you ;-) as you can see using a telnet.
> > > It's not JServ's fault ...
> > >
> > > [root@r26m24 logs]# telnet localhost 80
> > > Trying 127.0.0.1...
> > > Connected to localhost.
> > > Escape character is '^]'.
> > > foo
> > > <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
> > > <HTML><HEAD>
> > > <TITLE>501 Method Not Implemented</TITLE>
> > > </HEAD><BODY>
> > > <H1>Method Not Implemented</H1>
> > > foo to /index.html not supported.<P>
> > > Invalid method in request foo<P>
> > > <HR>
> > > <ADDRESS>Apache/1.3.9 Server at r26m24.cybercable.tm.fr Port
> > > 80</ADDRESS>
> > > </BODY></HTML>
> > > Connection closed by foreign host.
> >
> > Thanks for confirming Jean!!
> >
> > Anyone has any ideas on how to configure Apache to not
> > prepend that line ?
> >
> > thanks
> > Ramesh
> >
>
> I'm not sure this test proves anything one way or the other, because this is
> Apache reporting a 501 error that never got as far as the servlet engine.
> The error occurs because "foo" is not a valid HTTP command. Try a command
> like:
>
> GET / HTTP/1.0
>
> or
>
> GET /servlet/snoop HTTP/1.0
>
> where "/servlet/snoop" is the pathname to your servlet, to see what you
> get. On my Apache system, neither of the above documents has a DOCTYPE
> header.
>
> However, if I generate an invalid servlet request, such as
>
> GET /servlet/foo HTTP/1.0
>
> where "foo" is not a know servlet, I get an Apache error back instead of my
> text, and the error starts with DOCTYPE. You need to look at the remainder
> of the text of the message to see if it has your JavaScript text, or an
> error message.
>
> NOTE: When using telnet (at least under Linux), you will need to press
> ENTER and then CTRL+J (linefeed) to cause the request to be processed.
>
> Craig McClanahan
>
>
>
Craig, you are right. Server is returning an error
because there is some intenal error within
JServ/servlet. This happens only with javascript.
No problem with HTML.
I see the following error in JServ mod_jserv.log file :
[21/09/1999 06:28:34:900] (EMERGENCY) ajp11: cannot scan servlet headers
[21/09/1999 06:28:34:900] (ERROR) an error returned handling request via protocol
"ajpv11"
When and why does this error occur ?
This might be too often asked error on this list. But,
I couldn't find relevant info in docs or faqs.
My servlet code is as follows :
import java.io.*;
import java.net.*;
import java.util.*;
import java.lang.reflect.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
public String getServletInfo() {
return "MyServlet 1.0 by Ramesh";
}
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws IOException {
MyServletBackend backend = new MyServletBackend();
backend.doGet(req, res);
}
}
That's all is in the servlet. For simplicity, I put everything else in
MyServletBackend to workaround
concurrency problems though there is a better way
using "sychronized"
If I use MyServletBackend directly, this error doesn't
come, however, I face multi threading issues.
Thanks all for your help. I am heading in the
right direction.
Ramesh
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