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 |
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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) |
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验证注解的元素值在最小值和最大值之间 |
@NotBlank |
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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) |
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验证注解的元素值长度在min和max区间内 |
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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 |