Spring + Thymeleaf自定义验证显示

Spring + Thymeleaf自定义验证显示

这可能是因为您的@PasswordsEqualConstraint被分配给整个bean（类型）而不是字段“
/confirm/iPassword”。要将可能违反约束的条件添加到具体字段，您可以像以下示例一样进行 *** 作。

如果两个字段不相等，则FieldMatch比较两个字段，然后将验证错误分配给第二个字段。

顺便说一句。这是您正在做的事情的更通用的解决方案。密码示例，您可以像这样使用它

@FieldMatch(first = "password", second = "/confirm/iPassword", message = "Passowords are not equal.")

验证器：

public class FieldMatchValidator implements ConstraintValidator<FieldMatch, Object> {  private String firstFieldName;  private String secondFieldName;  @Override  public void initialize(final FieldMatch constraintAnnotation) {    firstFieldName = constraintAnnotation.first();    secondFieldName = constraintAnnotation.second();  }  @Override  public boolean isValid(final Object value, final ConstraintValidatorContext context) {    try {      final Object firstObj = BeanUtils.getProperty(value, firstFieldName);      final Object secondObj = BeanUtils.getProperty(value, secondFieldName);      boolean isValid = firstObj == null && secondObj == null || firstObj != null && firstObj.equals(secondObj);      if (!isValid) {        context.disableDefaultConstraintViolation();        context.buildConstraintViolationWithTemplate(context.getDefaultConstraintMessageTemplate()).addNode(secondFieldName).addConstraintViolation();      }      return isValid;    }    catch (final Exception ignore) {      // ignore    }    return true;  }}