Hibernate-validator（HV）异常

一直在犹豫要不要写一些经常会遇到的一些异常情况，直到最近引用同事jar包老是报错，才下定决心对异常做一下总结。

先拿一段错误的代码看看：

@Min(value = 0, message = "DD_VALIDATION_1009")
private Float cargo_price;

通过Hibernate-validator校验参数是一种十分常见的检验方式，这里就不多做介绍，直入主题，对异常进行分析。

om.alibaba.dubbo.rpc.RpcException: Failed to invoke the method postOrder in the service com.xkeshi.delivery.apis.DaDaOrderDubboService. Tried 1 times of the providers [192.168.184.15:20887] (1/1) from the registry 192.168.184.10:2181 on the consumer 192.168.184.15 using the dubbo version 2.5.4. Last error is: HV000030: No validator could be found for type: java.lang.Float.

关键字：HV000030: No validator could be found for type: java.lang.Float.

由于是调用的dubbo接口，因此给出的是RpcException，但是重点在于 HV这个关键字。HV是Hibernate-validator的异常，在注解有异常的时候会抛出。

下面是主要的验证注解及说明：

注解	适用的数据类型	说明
@AssertFalse	Boolean, boolean	验证注解的元素值是false
@AssertTrue	Boolean, boolean	验证注解的元素值是true
@DecimalMax（value=x）	BigDecimal, BigInteger, String, byte,short, int, long and the respective wrappers of the primitive types. Additionally supported by HV: any sub-type of Number andCharSequence.	验证注解的元素值小于等于@ DecimalMax指定的value值
@DecimalMin（value=x）	BigDecimal, BigInteger, String, byte,short, int, long and the respective wrappers of the primitive types. Additionally supported by HV: any sub-type of Number andCharSequence.	验证注解的元素值小于等于@ DecimalMin指定的value值
@Digits(integer=整数位数, fraction=小数位数)	BigDecimal, BigInteger, String, byte,short, int, long and the respective wrappers of the primitive types. Additionally supported by HV: any sub-type of Number andCharSequence.	验证注解的元素值的整数位数和小数位数上限
@Future	java.util.Date, java.util.Calendar; Additionally supported by HV, if theJoda Time date/time API is on the class path: any implementations ofReadablePartial andReadableInstant.	验证注解的元素值（日期类型）比当前时间晚
@Max（value=x）	BigDecimal, BigInteger, byte, short,int, long and the respective wrappers of the primitive types. Additionally supported by HV: any sub-type ofCharSequence (the numeric value represented by the character sequence is evaluated), any sub-type of Number.	验证注解的元素值小于等于@Max指定的value值
@Min（value=x）	BigDecimal, BigInteger, byte, short,int, long and the respective wrappers of the primitive types. Additionally supported by HV: any sub-type of CharSequence (the numeric value represented by the char sequence is evaluated), any sub-type of Number.	验证注解的元素值大于等于@Min指定的value值
@NotNull	Any type	验证注解的元素值不是null
@Null	Any type	验证注解的元素值是null
@Past	java.util.Date, java.util.Calendar; Additionally supported by HV, if theJoda Time date/time API is on the class path: any implementations ofReadablePartial andReadableInstant.	验证注解的元素值（日期类型）比当前时间早
@Pattern(regex=正则表达式, flag=)	String. Additionally supported by HV: any sub-type of CharSequence.	验证注解的元素值与指定的正则表达式匹配
@Size(min=最小值, max=最大值)	String, Collection, Map and arrays. Additionally supported by HV: any sub-type of CharSequence.	验证注解的元素值的在min和max（包含）指定区间之内，如字符长度、集合大小
@Valid	Any non-primitive type（引用类型）	验证关联的对象，如账户对象里有一个订单对象，指定验证订单对象
@NotEmpty	CharSequence,Collection, Map and Arrays	验证注解的元素值不为null且不为空（字符串长度不为0、集合大小不为0）
@Range(min=最小值, max=最大值)	CharSequence, Collection, Map and Arrays,BigDecimal, BigInteger, CharSequence, byte, short, int, long and the respective wrappers of the primitive types	验证注解的元素值在最小值和最大值之间
@NotBlank	CharSequence	验证注解的元素值不为空（不为null、去除首位空格后长度为0），不同于@NotEmpty，@NotBlank只应用于字符串且在比较时会去除字符串的空格
@Length(min=下限, max=上限)	CharSequence	验证注解的元素值长度在min和max区间内
@Email	CharSequence	验证注解的元素值是Email，也可以通过正则表达式和flag指定自定义的email格式