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