Hibernate Validator简单校验工具类

ApplicationException 异常为自定义异常。

package com.haircut.mumu.util;

import com.haircut.mumu.common.exception.ApplicationException;
import com.haircut.mumu.entity.BaseEntity;
import org.springframework.util.CollectionUtils;

import javax.validation.ConstraintViolation;
import javax.validation.Valid;
import javax.validation.Validation;
import java.util.Set;

/**
 * @program: ValiUtil
 * @description: 校验工具类
 * @author: xiatl
 * @create: 2020-08-08 20:02
 **/
public class ValiUtil {

    /**
     * 校验对象
     * 返回一个错误
     *
     * @param t   对象
     * @param <T> t
     */
    public static <T> void validateBySingleError(@Valid T t, Class<?> clazz) {
        Set<ConstraintViolation<@Valid T>> validateSet = Validation.buildDefaultValidatorFactory()
                .getValidator()
                .validate(t, clazz);
        if (!CollectionUtils.isEmpty(validateSet)) {
            for (ConstraintViolation<@Valid T> vali : validateSet) {
                throw new ApplicationException(vali.getMessage());
            }

        }
    }

    /**
     * 校验对象
     * 返回全部
     *
     * @param t   对象
     * @param <T> t
     */
    public static <T> void validateByAllError(@Valid T t, Class<?> clazz) {
        Set<ConstraintViolation<@Valid T>> validateSet = Validation.buildDefaultValidatorFactory()
                .getValidator()
                .validate(t, clazz);
        if (!CollectionUtils.isEmpty(validateSet)) {
            String messages = validateSet.stream()
                    .map(ConstraintViolation::getMessage)
                    .reduce((m1, m2) -> m1 + "\n" + m2)
                    .orElse("参数输入有误！");
            throw new ApplicationException(messages);
        }
    }

}

使用方法简单Demo: