Spring support spel in yaml config

@ConfigurationProperties(prefix = "foo")
@Data
public class DemoConfig {
    private long timeout;
    private int count;
    private String other;
}

foo:
  timeout: ${60*1000}
  count: 10
  other: ${'hello '+'world'}

expect timeou = 60000 and other="hello world". but it failed to start up Reason: failed to convert java.lang.String to long (caused by java.lang.NumberFormatException: For input string: "${60*1000}")

Comment From: quaff

${...} is placeholder not SpEL.

Comment From: snicoll

ConfigurationProperties is a Spring Boot concept but I confirm we have no intention of supporting spel there. See https://github.com/spring-projects/spring-boot/issues/1768