快速失败、非bean入参校验

• 快速失败

public class ValidationUtil {
    // 线程安全
    private static Validator failFastValidator;

    static {
        validator = Validation.buildDefaultValidatorFactory().getValidator();
        // 快速失败的
        failFastValidator = Validation.byProvider(HibernateValidator.class)
                .configure().failFast(true) // 配置快速失败
                .buildValidatorFactory().getValidator();
    }

    public static List<String> validFailFast(UserInfo userInfo, Class<?>... groups){
        // 如果被校验对象userInfo没有校验通过，则set里面就有校验信息
        Set<ConstraintViolation<UserInfo>> set = failFastValidator.validate(userInfo,groups);
        List<String> list = set.stream().map(v -> "属性:" + v.getPropertyPath() +
                ",属性的值:"
                + v.getInvalidValue() + ",校验不通过的提示信息:" + v.getMessage()
                +",消息模板:"+v.getMessageTemplate()) // el表达式还没被解析成值的时候
                .collect(Collectors.toList());
        return list;
    }
}

# 测试
public class ValidationTest {
    public static void main(String[] args) {
        UserInfo userInfo = new UserInfo();
        userInfo.setName("zhaodaowen");
        userInfo.setAge(18);
        userInfo.setEmail("[email protected]");
        userInfo.setPhone("13312345678");
        userInfo.setBirthDay(LocalDateTime.now().minusDays(1));
        userInfo.setPersonalPage("http://www.roadjava.com");
        List<String> list = ValidationUtil.validFailFast(userInfo,UserInfo.Add.class,Default.class);
        System.out.print(list);
    }
}

• 非bean入参校验

public class ValidationUtil {
    // 线程安全
    private static ExecutableValidator executableValidator;

    static {
        validator = Validation.buildDefaultValidatorFactory().getValidator();
        // 快速失败的
        failFastValidator = Validation.byProvider(HibernateValidator.class)
                .configure().failFast(true) // 配置快速失败
                .buildValidatorFactory().getValidator();
        // 校验入参或返回值的
        executableValidator = validator.forExecutables();
    }

    public static <T> List<String> validNotBean(T object,
                                            Method method,
                                            Object[] parameterValues,
                                            Class<?>... groups) {
        Set<ConstraintViolation<T>> set = executableValidator.validateParameters(object, method, parameterValues, groups);
        List<String> list = set.stream().map(v -> "属性:" + v.getPropertyPath() +
                ",属性的值:"
                + v.getInvalidValue() + ",校验不通过的提示信息:" + v.getMessage()
                +",消息模板:"+v.getMessageTemplate()) // el表达式还没被解析成值的时候
                .collect(Collectors.toList());
        return list;
    }
}

public class UserInfoService {
    /*
    方法非bean类型的入参校验
    1.方法参数前加注解
    2.执行入参校验,真正要用的话可以使用aop编程的思想来使用
     */
    public String getByName(@NotNull String name) {
        // 执行入参校验  aop
        StackTraceElement st = Thread.currentThread().getStackTrace()[1];
        String methodName = st.getMethodName(); // getByName
        Method method = null;
        try {
           method = this.getClass().getDeclaredMethod(methodName, String.class);
        }catch (Exception e) {
            e.printStackTrace();
        }
        List<String> list = ValidationUtil.validNotBean(this, method, new Object[]{name});
        // 打印校验结果
        System.out.println(list);
        return "ok";
    }
}

# 测试
public class App {
    public static void main(String[] args) {
        UserInfoService userInfoService = new UserInfoService();
        userInfoService.getByName(null);
    }
}