Port 8080 already in use in eclipse

Question

I am trying to run a Spring MVC demo file on Eclipse oxygen when I hit the button run as> run on server it shows the following error after a moment

Port 8080 required by Tomcat v8.5 Server at localhost is already in use. The server may already be running in another process, or a system process may be using the port. To start this server you will need to stop the other process or change the port number(s)

Answer 1

Step 1: (open the CMD command)

  C:\Users\username>netstat -o -n -a | findstr 0.0:8080

  TCP 0.0.0.0:3000 0.0.0.0:0 LISTENING 3116

  Now , we can see that LISTENING port is 3116 for 8080 ,

  We need to kill 3116 now

Step 2:-

 C:\Users\username>taskkill /F /PID 3116

 Step 3: Go to Eclipse and start Server , it will run

OR

 you can change port number in folder  servers>Tomcat>server.xml

Answer 2

A process is already listening on port 8080 and you can't have more than one process listening on the same port.

You have two options :

1. Kill the existing process if it's not usefull netstat -tulpn | grep :8080 netstat -tulpn | grep :8080

2. Change you application port. In your application.properties and file add this line server.port=8081

Answer 3

in your apache conf folder, open the httpd file and look for 8080 port. Change 8080 to any port you like. I believe you will find 8080 on two places

Answer 4

如果windows，请从任务管理器中杀死java进程，否则如果linux系统kill -9 tomcat

Answer 5

如果问题仍然存在，您可以更改 Tomcat 服务器的默认端口。

Answer 6

Always Kill the process before deploying your war file in tomcat

ps -A|grep tomcat It will list all tomcat process. Note Down the PID and run

KILL <PID>

Cross check by ps -A|grep tomcat

Answer 7

I face the same problem and after searching the answer as shown below: 1. open Monitor Tomcat as shown below:

2. Simply press stop as shown in below picture:

Finally it works with me after many trials and suggested solutions.

Best Regards, Kerelos Mikhail

Answer 8

My method is to run tomcat7w.exe to disable it. (Only Stopping it is not enough). And my Kaspersky (Anti virus) generate some new rules for eclipse and java.

Answer 9

Followed below steps and was able to solve the issue:

C:\\Users\\Sri Priya P Kulkarni>netstat -o -n -a | findstr 0.0:8080 TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 13196

C:\\Users\\Sri Priya P Kulkarni>taskkill /F /PID 13196 SUCCESS: The process with PID 13196 has been terminated.

Answer 10

你可以进入服务器 > server.xml .in server.xml 文件你应该改变，步骤 1) 步骤 2) 步骤 3) < Connector port="8010" protocol="AJP/1.3" redirectPort="8443"/>并保存更改。