Spring常用表單驗證注解

下面是主要的驗證注解及說明：

注解	適用的數據類型	說明
@AssertFalse	Boolean, boolean	驗證注解的元素值是false
@AssertTrue	Boolean, boolean	驗證注解的元素值是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.	驗證注解的元素值小於等於@ 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.	驗證注解的元素值小於等於@ DecimalMin指定的value值
@Digits(integer=整數位數, fraction=小數位數)	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.	驗證注解的元素值的整數位數和小數位數上限
@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.	驗證注解的元素值（日期類型）比當前時間晚
@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.	驗證注解的元素值小於等於@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.	驗證注解的元素值大於等於@Min指定的value值
@NotNull	Any type	驗證注解的元素值不是null
@Null	Any type	驗證注解的元素值是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.	驗證注解的元素值（日期類型）比當前時間早
@Pattern(regex=正則表達式, flag=)	String. Additionally supported by HV: any sub-type of CharSequence.	驗證注解的元素值與指定的正則表達式匹配
@Size(min=最小值, max=最大值)	String, Collection, Map and arrays. Additionally supported by HV: any sub-type of CharSequence.	驗證注解的元素值的在min和max（包含）指定區間之內，如字符長度、集合大小
@Valid	Any non-primitive type（引用類型）	驗證關聯的對象，如賬戶對象里有一個訂單對象，指定驗證訂單對象
@NotEmpty	CharSequence,Collection, Map and Arrays	驗證注解的元素值不為null且不為空（字符串長度不為0、集合大小不為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	驗證注解的元素值在最小值和最大值之間
@NotBlank	CharSequence	驗證注解的元素值不為空（不為null、去除首位空格后長度為0），不同於@NotEmpty，@NotBlank只應用於字符串且在比較時會去除字符串的空格
@Length(min=下限, max=上限)	CharSequence	驗證注解的元素值長度在min和max區間內
@Email	CharSequence	驗證注解的元素值是Email，也可以通過正則表達式和flag指定自定義的email格式