第一步：定义ValidationResult类

public class ValidationResult {// 校验结果是否有错private boolean hasErrors = false;// 存放错误信息的Mapprivate Map<String, String> errorMsgMap = new HashMap<>();public boolean isHasErrors() {return hasErrors;}public void setHasErrors(boolean hasErrors) {this.hasErrors = hasErrors;}public Map<String, String> getErrorMsgMap() {return errorMsgMap;}public void setErrorMsgMap(Map<String, String> errorMsgMap) {this.errorMsgMap = errorMsgMap;}// 实现通用的 通过格式化字符串信息获取 所有错误结果的Message方法public String getErrorMsg(){return StringUtils.join(errorMsgMap.values().toArray(), ",");}
}

第二步：定义ValidatorImpl实现类

/*** InitializingBean接口为bean提供了初始化方法的方式，它只包括afterPropertiesSet方法，凡是继承该接口的类，在初始化bean的时候都会执行该方法。* Spring初始化完成后，会回调ValidatorImpl的afterPropertiesSet()方法*/
@Component
public class ValidatorImpl implements InitializingBean {private Validator validator;// 实现校验方法并返回校验结果public ValidationResult validate(Object bean){ValidationResult validationResult = new ValidationResult();Set<ConstraintViolation<Object>> constraintViolationSet = validator.validate(bean);if(constraintViolationSet.size() > 0){// 大于0 表示有错误validationResult.setHasErrors(true);for (ConstraintViolation<Object> constraintViolation : constraintViolationSet) {String errorMsg = constraintViolation.getMessage();String propertyName = constraintViolation.getPropertyPath().toString();validationResult.getErrorMsgMap().put(propertyName, errorMsg);}}return validationResult;}@Overridepublic void afterPropertiesSet() throws Exception {// 将hibernate validator通过工厂的初始化方式使其实例化validator = Validation.buildDefaultValidatorFactory().getValidator();}
}

第三步，在业务逻辑中调用

public class UserModel {private Integer id;@NotBlank(message = "name不能为空")private String name;@NotNull(message = "性别不能为空")private Byte gender;@NotNull(message = "年龄不能为空")@Min(value = 0, message = "年龄必须小于0")@Max(value = 150, message = "年龄不能大于150")private Integer age;@NotNull(message = "手机号码不能为空")@Size(min = 11, max = 11, message = "手机号码必须为11位")private String telphone;@NotNull(message = "注册方式不能为空")private String registerMode;private String thirdPartyId;@NotNull(message = "密码不能为空")private String encrptPassword;

    @Autowiredprivate ValidatorImpl validator;@Transactionalpublic void register(UserModel userModel) throws BusinessException {if(userModel == null){throw new BusinessException(EnumBusinessError.PARAMETER_VALIDATION_ERROR);}// ValidationResult validationResult = validator.validate(userModel);if(validationResult.isHasErrors()){throw new BusinessException(EnumBusinessError.PARAMETER_VALIDATION_ERROR, validationResult.getErrorMsg());}