如何用休眠验证数字字符串为数字? [英] How to validate number string as digit with hibernate?

问题描述

我必须在Hibernate Validation中使用哪些注释来验证字符串以应用于以下内容:

Which annotations would I have to use for Hibernate Validation to validate a String to apply to the following:

//should always have trimmed length = 6, only digits, only positive number
@NotEmpty
@Size(min = 6, max = 6)
public String getNumber { 
   return number.trim();
}

我如何应用数字验证?我要在这里使用@Digits(fraction = 0, integer = 6)吗?

How can I apply digit validation? Would I just use @Digits(fraction = 0, integer = 6) here?

推荐答案

您可以将所有约束替换为一个@Pattern(regexp="[\\d]{6}").这意味着一个长度为六的字符串，其中每个字符都是一个数字.

You could replace all your constraints with a single @Pattern(regexp="[\\d]{6}"). This would imply a string of length six where each character is a digit.

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