如何使用Hibernate Validator动态解析消息参数？

IMO，简单的解决方案是创建的自定义实现

javax.validation.MessageInterpolator

ResourceBundleMessageInterpolator

CustomMessageInterpolator

public class CustomMessageInterpolator extends org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator {    private static final Pattern MESSAGE_PARAMETER_PATTERN = Pattern.compile( "(\{[^\}]+?\})" );    @Override    public String interpolate(String message, Context context) {        String resolvedMessage = super.interpolate(message, context);        resolvedMessage = replacePropertyNameWithPropertyValues(resolvedMessage, context.getValidatedValue());        return resolvedMessage;    }    private String replacePropertyNameWithPropertyValues(String resolvedMessage, Object validatedValue) {        Matcher matcher = MESSAGE_PARAMETER_PATTERN.matcher( resolvedMessage );        StringBuffer sb = new StringBuffer();        while ( matcher.find() ) { String parameter = matcher.group( 1 ); String propertyName = parameter.replace("{", ""); propertyName = propertyName.replace("}", ""); PropertyDescriptor desc = null; try {     desc = new PropertyDescriptor(propertyName, validatedValue.getClass()); } catch (IntrospectionException ignore) {     matcher.appendReplacement( sb, parameter );     continue; } try {     Object propertyValue = desc.getReadMethod().invoke(validatedValue);     matcher.appendReplacement( sb, propertyValue.toString() ); } catch (Exception ignore) {     matcher.appendReplacement( sb, parameter ); }        }        matcher.appendTail( sb );        return sb.toString();    }}

@测试

public void validate() {        Configuration<?> configuration = Validation.byDefaultProvider().configure();        ValidatorFactory validatorFactory = configuration.messageInterpolator(new CustomMessageInterpolator()).buildValidatorFactory();        Validator validator = validatorFactory.getValidator();        Product p = new Product();        Category cat = new Category();        cat.setName("s"); //assume specified name is invalid        p.setCategory(cat);        Set<ConstraintViolation<Product>> violations = validator.validate(p);        for(ConstraintViolation<Product> violation : violations) { System.out.println(violation.getMessage());        }    }

输出量

s is a product in the hazardous category list.