every port is in use spring boot code example

Example 1: port already in use spring boot

> netstat -ano | findstr *<port used>*

  TCP    0.0.0.0:*<port used>*  0.0.0.0:0              LISTENING       *<pid>*
  TCP    [::]:*<port used>*     [::]:0                 LISTENING       *<pid>*

> taskkill /F /PID *<pid>*
SUCCESS: The process with PID *<pid>* has been terminated.

Example 2: change port in spring boot

server.port=8081

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Java Example

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