Tomcat on port 8080 failed using Spring boot Java

Question

i am beginner of spring boot. when i run the spring boot application i ran into the problem with The Tomcat connector configured to listen on port 8080 failed to start. Spring boot

i don't how to solve the problem. i have install mysql when i ran the mysql it port also 8080. so how to sort out the problm.

***************************
APPLICATION FAILED TO START
***************************

Description:

    The Tomcat connector configured to listen on port 8080 failed to start. The port may already be in use or the connector may be misconfigured.
    
    Action:
    
    Verify the connector's configuration, identify and stop any process that's listening on port 8080, or configure this application to listen on another port.

So you have MySQL running on port 8080? That is your problem than. Stop the MySQL service and you can run Tomcat on 8080. — Fullslack, Sep 17 '20 at 13:40
Does this answer your question? [How to configure port for a Spring Boot application](https://stackoverflow.com/questions/21083170/how-to-configure-port-for-a-spring-boot-application) — Smile, Sep 17 '20 at 13:43
Does this answer your question? [Windows Kill Process By PORT Number](https://stackoverflow.com/questions/55311842/windows-kill-process-by-port-number) — Romil Patel, Sep 17 '20 at 13:46

score 1 · Accepted Answer · answered Sep 17 '20 at 13:40

1

Seems like 8080 port is already used by some other process.

Change the port of spring-boot tomcat port by adding the server.port=8090 in application.properties.

Change 8090 to any port you want to use.

answered Sep 17 '20 at 13:40

Smile

3,832
3
25
39

error gone. but localhost/8090 but This site can’t be reached – tuts fun Sep 17 '20 at 13:43
You mean localhost:8090 with : and not / ? – Smile Sep 17 '20 at 13:44

score 0 · Answer 2 · answered Sep 17 '20 at 14:49

Your 8080 port is already used by some other process.

Change the port of spring-boot server.port=8090 in application.properties.

You can change your application run server port any port number to if that port number would not belong to any other process on your computer.

and another thing if you use IntelliJ idea to develop, accidentally close your IDE without proper way this error may have occurred {personal experience}.

score 0 · Answer 3 · answered Jul 08 '22 at 18:00

It is not necessarily required to change the port, you can just end the process of it to release it in your spring application

Open cmd as administrator and enter the following commands:

netstat -year | findstr 9330

Once you find the process number, type it in the highlight of the following command:

taskkill /F /PID <Process ID>

The result should appear as follows:

SUCCESS: The process with PID < Process Id > has ended.

Tomcat on port 8080 failed using Spring boot Java

3 Answers3