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I have set environment varible through 

System.setProperty("mykey" : "itsvalue");

I am retrieving it as :

System.getProperty("mykey");

I get the mykey retrieved properly, but when I restart my service, mykey also get erased. How to save the mykey so that it remains persistent even after service restart?

I don't want to save it in database or cache.

usr_11
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1 Answers1

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If you just store key value pairs java already has api for this purpose.

You can use preferences API to store key value pairs.

https://www.javaworld.com/article/2071328/the-preferences-api.html

If you have lot of entries better use Database.

Gokul Prabhu
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