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Id already exists in the database Spring boot Mysql

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In this tutorials will teach you how to do the validation in Spring boot.this tutorials continue from the last article if you are not read in the last article please read and come here .

it is checking the employee id is already exists or not. if it is exists display the warning message as
  “Employee ID Already Exists”

Full Code

EmployeeServiceIMPL

i have attached the video link below. which will do this tutorials step by step

 

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