Reading json file as string spring boot

Question

ServiceApplicationTest{
  public static final String CONNECTED_CALL="{\"Sid\":\"835494\",\"Info\":\"121345\"}
}

Strings like "CONNECTED_CALL" can be very long, this is not preety but is working fine. My goal is to move all this kind of data to file in resource folder like - connectedCall.json and read it without making any major change.

I dont want to change already written code, I am fine with adding complexity to populate this values.

One way I had is to read these json file as string, calling this function for every value but then they cant be final.

Can i do it using any annotation? like @Value in spring boot. I am using jackson.

Reading json file but they can't be final? What do you mean by that? — Enfield Li
– Enfield Li, Commented Jul 23, 2022 at 8:18
@Enfieldli- final strings have to declared and initialised together. — DEEPAK MALIK
– DEEPAK MALIK, Commented Jul 24, 2022 at 15:16

Ashish Patil · Accepted Answer · 2022-07-23 07:45:34Z

2

I think you can use @PropertySource something like :

@Configuration
@PropertySource("classpath:json.properties")
public class JsonConfig {
       
       @Value("${CONNECTED_CALL}")
       String jsonVal;
}

And your json.properties file will have :

CONNECTED_CALL="{\"Sid\":\"835494\",\"Info\":\"121345\"}

This can be one of the way.

answered Jul 23, 2022 at 7:45

Ashish Patil

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2 Comments

DEEPAK MALIK Over a year ago

This will pollute my properties file. Only properties file related on the basis of deployment are allowed.

Ashish Patil Over a year ago

Then another option which I can think of is to use db or file storage & refer it in your application either via repository interface or via any db drivers.

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