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Ankur
Asked: 2009-07-22 08:38:48 +0800 CST

Tomcat won't start - how to check that port 8080 is not in use

  • 772

Tomcat won't start, and it has worked perfectly before. I suspect something else is running on port 8080. I am running Windows Vista. How do I check that nothing else is using port 8080?

I have recently downloaded several versions of Jetty. Could this be the problem? I am not running them concurrently so I can't see how.

windows tomcat startup

7 Answers

  1. Best Answer

    Open up a command prompt and run

    netstat -ano | findstr 8080

    Rightmost column is PID

    In task manager you can add column for PID then find the app that is using the port.

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  2. I think you can run cmd as administrator and use netstat command to see if port 8080 is being used. Use netstat /? for help with netstat command. I do not know any GUI based approach for the same.

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  3. In addition to netstat you can also use Process Hacker or ActivePorts to view open ports in real-time (ok, specific refresh intervals...)

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  4. This can be done easily using the netstat utility.

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  5. use NETSTAT in a command prompt.

    Wikipedia also lists the parameters.

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  6. Try this command:

    netstat -aon | findstr "8080"

    This command will give process ID's. Then go to task manager and stop the process with this process id and then restart tomcat.

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  7. telnet localhost 8080

    If you can connect, then something's listening on the port.

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