On 13/11/2009 13:29, maven apache wrote:
2009/11/13 Pid <p...@pidster.com <mailto:p...@pidster.com>>
On 13/11/2009 13:16, maven apache wrote:
2009/11/13 Pid <p...@pidster.com <mailto:p...@pidster.com>
<mailto:p...@pidster.com <mailto:p...@pidster.com>>>
On 13/11/2009 02:33, maven apache wrote:
2009/11/12 Christopher
Schultz<ch...@christopherschultz.net
<mailto:ch...@christopherschultz.net>
<mailto:ch...@christopherschultz.net
<mailto:ch...@christopherschultz.net>>>
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To whom it may concern,
On 11/11/2009 8:33 PM, maven apache wrote:
Thanks for your attention.
Actually I did not modify the catalina.bat
directly , I
create a new bat
named debug.bat in the same directory, the
content of
the debug.bat is :
-----------------------------------------------------------------------------------------------------------
cd %CATALINE_HOME%/bin
This is not spelled correctly. It should be
CATALINA_HOME, not
CATALINE_HOME.
set JPDA_ADDRESS=1044
set JPDA_TRANSPORT=dt_socket
This is the default JPDA_TRANSPORT when using Tomcat's
startup scripts.
set CATALINA_OPTS=-server -Xdebug -Xnoagent
-Djava.compiler=NONE
-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1044
startup
---------------------------------------------------------------------------------------------------------------
Then I start the tomcat with the debug.bat.
It's tough to tell where the lines end due to word
wrapping,
but it
looks like this script doesn't do anything but set
environment
variables. Is the "startup" word actually on a
separate line
from the
"set CATALINA_OPTS" line? I'll assume so, otherwise nothing
would happen.
Note that you could have put these settings into
bin/setenv.sh and it
would be called before calling catalina.bat.
Finally, Tomcat allows you to specify the JPDA_*
environment
variables
so that you don't then have to re-specify everything in
CATALINA_OPTS.
Try deleting your debug.bat file and instead put
this into your
CATALINA_BASE/bin/setenv.bat file:
set JPDA_ADDRESS=1044
set CATALINA_OPTS=-server -Xnoagent -Djava.compiler=none
Note that catalina.bat will auto-build the following
command-line
arguments when starting up the JVM, given my above
settings:
- -Xdebug
-Xrunjdwp:transport=dt_socket,address=1044,server=y,suspend=n
Now, you have to start Tomcat like this:
%CATALINA_BASE%\bin\catalina.bat jpda start
This should start Tomcat using all the JPDA options.
If you
don't use
"jpda start", then all the JPDA_* environment variables are
useless. I
can see why you ended up specifying everything in
CATALINA_OPTS: because
Tomcat was otherwise ignoring all your settings.
After you get Tomcat started, you'll need to verify
that the
JPDA
options were actually enabled. If they were, you
should have
something
listening on port 1044:
C:\Tomcat> netstat -a -o | find "1044"
If the above command shows something like this:
TCP 127.0.0.1:1044 <http://127.0.0.1:1044>
<http://127.0.0.1:1044> Krang:0
LISTENING 332
Then JPDA has properly started and is listening on that
port. If not,
try running the netstat command without the "| find"
part to
see if
that's failing (I tried adding "-b" argument and I got a
"requires
elevation" error, so the "find" of course didn't
work). If
there's
nothing listening on port 1044, then your JPDA
configuration
is broken
and you should re-post with your current progress.
If it's listening, then you have a problem with your
debugger and/or
firewall issues. Since the subject of this thread is
"remote
debug", I
suspect you are trying to debug over a network. What
is the
relationship
between the server and the client? Are there firewalls
involved? Does
JPDA bind to 127.0.0.1 or to 0.0.0.0 (or some other IP
address)? If it
binds to 127.0.0.1, then you'll need an ssh tunnel or
something to turn
a remote connection into a localhost one.
- -chris
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Thanks for your detailed information.
I check it with my own configuration and found that the
connection is
established ,however I did not know since there is no
message,so
I try to
connect the server side again, so I got the connect failed
error................
And now I can connect it ,since I found each time I after I
connect the
tomcat start window will show a message in the below:
Listening for transport at ...1044.
That to say I think the connect of the debug is
successful, and
I have add
breakpoints in the servlet,so I open a browser and enter:
http://localhost:9000/helloServlet or
If you have a Connector (in server.xml) configured on port
9000 then
examine the catalina.out and the other log files for
information.
I enter " http://localhost:9000"; I can get the tomcat welcome
page,but I
got a 404 error when I entered "http://localhost:9000/MT-web";
And I found under the catalina-home/webapp there is no folder
named MT-web.
Have you actually deployed a webapp called MT-web to Tomcat?
I though the debugger will copy it for me ,but If I copy
it manually ,is the breakpoint useful?
The debugger will not deploy the app, try doing so yourself.
p
p
If the Connector is on a different port use that, e.g. 8080.
http://localhost:8080/helloServlet
http://localhost:1044/helloServlet ,but none of them can open the
page, and the IDE did not turn to the class
where I have add the breakpoints.
Tomcat doesn't serve pages on 1044 - that's purely for the
JVM debugger.
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