How to auto convert string values from properties files to other data types i.e. duration using spring conversion service?

Question

properties file

my.duration=PT10M

configuration class

@Value("{my.duration}")
//It'll give string value by default but I want to convert to duration
private Duration myDuration;

How can I achieve that using spring ConversionService?

Possible duplicate of [Spring Boot bind @Value to Enum case insensitive](https://stackoverflow.com/questions/35565758/spring-boot-bind-value-to-enum-case-insensitive) — Gal Shaboodi, Nov 30 '17 at 06:54

score 0 · Answer 1 · answered Nov 30 '17 at 07:49

Here you can use YAML, if you want to populate a class with the values from resource files.

Duration.yaml

duration:
    val1: "PT"
    val2: "10"
    val3: "M"

Duration.java

@Configuration
@EnableConfigurationProperties
@ConfigurationProperties(prefix = "duration")
public class Duration {
    private String val1;
    private String val2;
    private String val3;

    // setters and getters.
}

You can play around with this approach to get the desired output.

How to auto convert string values from properties files to other data types i.e. duration using spring conversion service?

1 Answers1