How to write a java variable value in message of validator

Question

For OTP length I am using 6, which I am taking from a variable

static final int OTP_LENGTH = 6;

@Size(min = OTP_LENGTH, max = OTP_LENGTH, message = "OTP Length should be {OTP_LENGTH} !!")
private String otp;

For which I am getting error mesage, if size is not of OTP_LENGTH.

"fieldErrors": [
    {
      "field": "password",
      "message": "Not a Base64 string !!"
    },
    {
      "field": "otp",
      "message": "OTP Length should be {OTP_LENGTH} !!"
    }
  ]

I also tried

@Size(min = OTP_LENGTH, max = OTP_LENGTH, message = "OTP Length should be ${OTP_LENGTH} !!")
private String otp;

But, OTP_LENGTH 6 is not setting.

Expectation :- "OTP Length should be 6 !!"

And, is there any other validator which takes only 1 length.

@Size, @Length can take max, @Size(max = OTP_LENGTH), but again min will be 0. If I will not override message, it will show length should be between 0 & 6.

"message": "OTP Length should be {OTP_LENGTH} !!". It's not replacing with 6 — Satish Patro
– Satish Patro, Commented Nov 2, 2019 at 8:31
I was following this one stackoverflow.com/questions/31020035/… — Satish Patro
– Satish Patro, Commented Nov 2, 2019 at 8:32

Andriy Budzinskyy · Accepted Answer · 2019-11-02 08:37:40Z

2

You have to use min and max fields from @Size annotation, e.g.:

@Size(min = OTP_LENGTH, max = OTP_LENGTH, message = "OTP Length must be between {min} and {max}")
private String otp;

For value, you can validatedValue property.

edited Nov 2, 2019 at 8:37

answered Nov 2, 2019 at 8:35

Andriy Budzinskyy

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2 Comments

Satish Patro Over a year ago

can't we use OTP_LENGTH? And is there any alterative to take only one length. Size, Length takes min, max

Satish Patro Over a year ago

stackoverflow.com/questions/31020035/…, it's working for them

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