@Value for numeric types in yaml file in Spring Boot

I got a data.yml in resources folder of a following structure:

main:    header:      info: 3600L  

I use Spring Boot version 2.4.2, I want to inject property main.header1.info to a field, I do this the following way:

@Component  @PropertySource("classpath:data.yml")  public class SomeClass {      @Value("`main.header1.info")      private long info;      ...  }  

But a NumberFormatException ocurres:

java.lang.NumberFormatException: For input string: "main.header1.info"      at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) ~[na:na]      at java.base/java.lang.Long.parseLong(Long.java:692) ~[na:na]      ...  

I know that long is not supported in yml, but I think its not the case. I tried other numeric types and corresponding wrapper-classes, like Double. So, how to fix that?

https://stackoverflow.com/questions/66084248/value-for-numeric-types-in-yaml-file-in-spring-boot February 07, 2021 at 11:21AM