Java Community | Help. Code. Learn.•2y ago

couldnt resolve placeholder from the config

hey guys. i have this config:

    bankAccounts:
      - iban: "LT123"
        cashRegId: 2
      - iban: "LT345"
        cashRegId: 2

    bankAccounts:
      - iban: "LT123"
        cashRegId: 2
      - iban: "LT345"
        cashRegId: 2

and i have this config:

@Component
@Configuration
@Getter
@Setter
public class BankAccountConfig {
    @Value("${bankAccounts}")
    private List<BankAccount> bankAccounts;
}

@Component
@Configuration
@Getter
@Setter
public class BankAccountConfig {
    @Value("${bankAccounts}")
    private List<BankAccount> bankAccounts;
}

and the thing is that idk how to tell

@Value

@Value

that i want to have a list. bc rn i need to specify an element. intellij suggests me this:

    @Value("${bankAccounts[0].iban}")

    @Value("${bankAccounts[0].iban}")

any help? thx

JavaBot

J

JavaBot•6/18/24, 9:02 AM

JavaBot

J

JavaBot•6/18/24, 9:02 AM

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Peter Rader

P

Peter Rader•6/18/24, 10:41 AM

Hint: You dont need to quote IBANS

Peter Rader

P

Peter Rader•6/18/24, 10:59 AM

Try this instead:

Peter Rader

PPeter Rader Try this instead: ``` bankAccounts: - iban: LT123 cas...

bambizas19

B

bambizas19OP•6/18/24, 11:01 AM

wait. do i add tab, or space?

Peter Rader

P

Peter Rader•6/18/24, 11:01 AM

NEVER TAB, spaces only!

Peter Rader

PPeter Rader NEVER TAB, spaces only! 😄

bambizas19

B

bambizas19OP•6/18/24, 11:02 AM

thanks LD

bambizas19

Bbambizas19 thanks LD

JavaBot

J

JavaBot•6/18/24, 11:02 AM

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bambizas19

B

bambizas19OP•6/18/24, 11:02 AM

u mean like that?

Peter Rader

P

Peter Rader•6/18/24, 11:03 AM

I would add another space in 53 and 54.

Peter Rader

PPeter Rader I would add another space in 53 and 54.

bambizas19

B

bambizas19OP•6/18/24, 11:04 AM

but is it even possible to do what i want? i.e. inject a list of objects in my Config class?

bambizas19

B

bambizas19OP•6/18/24, 11:04 AM

crap, still doesnt work

Peter Rader

P

Peter Rader•6/18/24, 11:04 AM

It should, is that the complete Config-class?

bambizas19

B

bambizas19OP•6/18/24, 11:05 AM

Peter Rader

P

Peter Rader•6/18/24, 11:08 AM

Oh, you need getter and setter for the private-field. And you need the on that class.

Peter Rader

PPeter Rader Oh, you need getter and setter for the private-field. And you need the `@Configu...

bambizas19

B

bambizas19OP•6/18/24, 11:10 AM

. on which one? on my BankAccountConfig or BankAccount?

Peter Rader

P

Peter Rader•6/18/24, 11:10 AM

BankAccountConfig

Peter Rader

PPeter Rader BankAccountConfig

bambizas19

B

bambizas19OP•6/18/24, 11:10 AM

but i dont understand what to write between quotes

Peter Rader

P

Peter Rader•6/18/24, 11:12 AM

Could you create another namespace before the config bankAccounts?

Peter Rader

P

Peter Rader•6/18/24, 11:12 AM

Maybe empty is ok.

bambizas19

B

bambizas19OP•6/18/24, 11:17 AM

my application.yaml looks like this. im not sure i understand what u mean

Peter Rader

P

Peter Rader•6/18/24, 11:20 AM

I reproduced your problem and it works for me.

Peter Rader

PPeter Rader I reproduced your problem and it works for me.

bambizas19

B

bambizas19OP•6/18/24, 11:21 AM

so do i need to have annotation?

Peter Rader

P

Peter Rader•6/18/24, 11:21 AM

Yes.

Peter Rader

P

Peter Rader•6/18/24, 11:21 AM

I send you my working-example

Peter Rader

P

Peter Rader•6/18/24, 11:21 AM

1 Moment

Peter Rader

P

Peter Rader•6/18/24, 11:22 AM

My main class:

Peter Rader

P

Peter Rader•6/18/24, 11:22 AM

My BankAccountConfig:

Peter Rader

P

Peter Rader•6/18/24, 11:22 AM

My BankAccount:

Peter Rader

P

Peter Rader•6/18/24, 11:22 AM

My Config:

Peter Rader

P

Peter Rader•6/18/24, 11:23 AM

Output:

Peter Rader

P

Peter Rader•6/18/24, 11:27 AM

You realy need the !

Peter Rader

PPeter Rader You realy need the `@EnableConfigurationProperties(BankAccountConfig.class)`!

bambizas19

B

bambizas19OP•6/18/24, 11:30 AM

idk man. previously i had

and everything was fine. i didnt even need to have

Peter Rader

P

Peter Rader•6/18/24, 11:31 AM

should go to the appconfig. Not the BankAccountConfig

Peter Rader

P

Peter Rader•6/18/24, 11:33 AM

Do you have setter for BankAccounts in BankAccountConfig?

Peter Rader

PPeter Rader `@EnableConfigurationProperties(BankAccountConfig.class)` should go to the appco...

bambizas19

B

bambizas19OP•6/18/24, 11:33 AM

idk its a good idea

Peter Rader

PPeter Rader Do you have setter for BankAccounts in BankAccountConfig?

bambizas19

B

bambizas19OP•6/18/24, 11:33 AM

nope, didnt need it

bambizas19

B

bambizas19OP•6/18/24, 11:34 AM

bc BankAccount is:

bambizas19

Bbambizas19 idk its a good idea

Peter Rader

P

Peter Rader•6/18/24, 11:35 AM

No no no, I did not meant the application.yml, I meant the AppConfigClass!

Peter Rader

P

Peter Rader•6/18/24, 11:35 AM

You need to add to the application-config-java-class!

bambizas19

Bbambizas19 nope, didnt need it

Peter Rader

P

Peter Rader•6/18/24, 11:36 AM

I am pretty sure you need the setter. But I guess the setter is automatically generated by the annotation.

Peter Rader

PPeter Rader I am pretty sure you need the setter. But I guess the setter is automatically ge...

bambizas19

B

bambizas19OP•6/18/24, 11:36 AM

yep

Peter Rader

P

Peter Rader•6/18/24, 11:37 AM

Ok, did you add to the application-config-java-class?

Peter Rader

PPeter Rader You need to add `@EnableConfigurationProperties(BankAccountConfig.class)` *to th...

bambizas19

B

bambizas19OP•6/18/24, 11:37 AM

but i have like 5 config classes. why do i need to add only BankAccountConfig class to my application config java class?

bambizas19

Bbambizas19 but i have like 5 config classes. why do i need to add only BankAccountConfig cl...

Peter Rader

P

Peter Rader•6/18/24, 11:39 AM

Hm, did you already have a in your application-config-java-class?

Peter Rader

PPeter Rader Hm, did you already have a `@EnableConfigurationProperties` in your application-...

bambizas19

B

bambizas19OP•6/18/24, 11:39 AM

nope. dont have it anywehere

Peter Rader

P

Peter Rader•6/18/24, 11:40 AM

Is not a application-config-java-class by-the-way.

Peter Rader

PPeter Rader `BankAccountConfig` Is not a application-config-java-class by-the-way.

bambizas19

B

bambizas19OP•6/18/24, 11:40 AM

i never said it is

bambizas19

Bbambizas19 i never said it is 😦

Peter Rader

P

Peter Rader•6/18/24, 11:40 AM

Ah ok.

bambizas19

B

bambizas19OP•6/18/24, 11:40 AM

np

package test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import jakarta.annotation.PostConstruct;

@SpringBootApplication
@EnableAutoConfiguration
@EnableConfigurationProperties(BankAccountConfig.class)
public class AppConfig {
    public static void main(String... args) {
        SpringApplication.run(AppConfig.class, args);
    }

    @Autowired
    BankAccountConfig test;

    @PostConstruct
    public void post() {
        System.out.println(test.getBankAccounts());
    }
}

package test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import jakarta.annotation.PostConstruct;

@SpringBootApplication
@EnableAutoConfiguration
@EnableConfigurationProperties(BankAccountConfig.class)
public class AppConfig {
    public static void main(String... args) {
        SpringApplication.run(AppConfig.class, args);
    }

    @Autowired
    BankAccountConfig test;

    @PostConstruct
    public void post() {
        System.out.println(test.getBankAccounts());
    }
}

package test;

import java.util.List;

import org.springframework.boot.context.properties.ConfigurationProperties;

@ConfigurationProperties("payment-import.baltic-gateway")
public class BankAccountConfig {

    public List<BankAccount> bankAccounts;

    public List<BankAccount> getBankAccounts() {
        return bankAccounts;
    }

    public void setBankAccounts(List<BankAccount> bankAccounts) {
        this.bankAccounts = bankAccounts;
    }
}

package test;

import java.util.List;

import org.springframework.boot.context.properties.ConfigurationProperties;

@ConfigurationProperties("payment-import.baltic-gateway")
public class BankAccountConfig {

    public List<BankAccount> bankAccounts;

    public List<BankAccount> getBankAccounts() {
        return bankAccounts;
    }

    public void setBankAccounts(List<BankAccount> bankAccounts) {
        this.bankAccounts = bankAccounts;
    }
}

package test;

public class BankAccount {
    private String iban;
    private long cashRegId;

    public void setIban(String iban) {
        this.iban = iban;
    }

    public String getIban() {
        return iban;
    }

    public void setCashRegId(long cashRegId) {
        this.cashRegId = cashRegId;
    }

    public long getCashRegId() {
        return cashRegId;
    }

}

package test;

public class BankAccount {
    private String iban;
    private long cashRegId;

    public void setIban(String iban) {
        this.iban = iban;
    }

    public String getIban() {
        return iban;
    }

    public void setCashRegId(long cashRegId) {
        this.cashRegId = cashRegId;
    }

    public long getCashRegId() {
        return cashRegId;
    }

}

2024-06-18T13:21:08.262+02:00  INFO 4932 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2024-06-18T13:21:08.262+02:00  INFO 4932 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 388 ms
[test.BankAccount@176996c3, test.BankAccount@411c6d44]
2024-06-18T13:21:08.312+02:00  INFO 4932 --- [           main] o.s.b.a.w.s.WelcomePageHandlerMapping    : Adding welcome page: class path resource [META-INF/resources/index.html]
2024-06-18T13:21:08.407+02:00  INFO 4932 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port 8080 (http) with context path '/'

2024-06-18T13:21:08.262+02:00  INFO 4932 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2024-06-18T13:21:08.262+02:00  INFO 4932 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 388 ms
[test.BankAccount@176996c3, test.BankAccount@411c6d44]
2024-06-18T13:21:08.312+02:00  INFO 4932 --- [           main] o.s.b.a.w.s.WelcomePageHandlerMapping    : Adding welcome page: class path resource [META-INF/resources/index.html]
2024-06-18T13:21:08.407+02:00  INFO 4932 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port 8080 (http) with context path '/'