Attribute Value must be constant

Question

到底是什么回事??? I have this in my class and I calling them from application.properties Class A @Value("${maxAttempts}") private String maxAttempt; @Value("${delay}") private String delay; @Value("${multiplier}") private String multiplier; @Value("${max-delay}") private String maxDelay; And I use them in this line @Retryable(maxAttempts=maxAttempt, value=RuntimeException.class, backoff = @Backoff(delay =delay,multiplier = multiplier, maxDelay = maxDelay)) application.properties maxAttempt=3 delay=3 max-delay=9 multiplier=2 However I get Attribute Value must be constant

Answer 1

注解里面的参数不能是变量，@Value是运行后才能取到的值。