https://docs.jboss.org/hibernate/validator/4.0.1/reference/en/html_single/
另参见
http://docs.oracle.com/javaee/7/api/javax/validation/constraints/package-summary.html
| Annotation | Part of Bean Validation Specification | Apply on | Use | Hibernate Metadata impact |
|---|---|---|---|---|
| @AssertFalse | yes | field/property | check that the annotated element is false. | none |
| @AssertTrue | yes | field/property | check that the annotated element is true. | none |
| @DecimalMax | yes | field/property. Supported types are BigDecimal,BigInteger, String,byte, short, int, longand the respective wrappers of the primitive types. | The annotated element must be a number whose value must be lower or equal to the specified maximum. The parameter value is the string representation of the max value according to theBigDecimal string representation. | none |
| @DecimalMin | yes | field/property. Supported types are BigDecimal,BigInteger, String,byte, short, int, longand the respective wrappers of the primitive types. | The annotated element must be a number whose value must be higher or equal to the specified minimum. The parameter value is the string representation of the min value according to theBigDecimal string representation. | none |
| @Digits(integer=, fraction=) | yes | field/property. Supported types are BigDecimal,BigInteger, String,byte, short, int, longand the respective wrappers of the primitive types. | Check whether the property is a number having up to integerdigits and fraction fractional digits. | Define column precision and scale. |
| no | field/property. Needs to be a string. | Check whether the specified string is a valid email address. | none | |
| @Future | yes | field/property. Supported types are java.util.Dateandjava.util.Calendar. | Checks whether the annotated date is in the future. | none |
| @Length(min=, max=) | no | field/property. Needs to be a string. | Validate that the annotated string is between min and maxincluded. | none |
| @Max | yes | field/property. Supported types are BigDecimal,BigInteger, String,byte, short, int, longand the respective wrappers of the primitive types. | Checks whether the annotated value is less than or equal to the specified maximum. | Add a check constraint on the column. |
| @Min | yes | field/property. Supported types are BigDecimal,BigInteger, String,byte, short, int, longand the respective wrappers of the primitive types. | Check whether the annotated value is higher than or equal to the specified minimum. | Add a check constraint on the column. |
| @NotNull | yes | field/property | Check that the annotated value is not null. | Column(s) are not null. |
| @NotEmpty | no | field/property. Needs to be a string. | Check if the string is not null nor empty. | none |
| @Null | yes | field/property | Check that the annotated value is null. | none |
| @Past | yes | field/property. Supported types are java.util.Dateandjava.util.Calendar. | Checks whether the annotated date is in the past. | none |
| @Pattern(regex=, flag=) | yes | field/property. Needs to be a string. | Check if the annotated string match the regular expressionregex. | none |
| @Range(min=, max=) | no | field/property. Supported types are BigDecimal,BigInteger, String,byte, short, int, longand the respective wrappers of the primitive types. | Check whether the annotated value lies between (inclusive) the specified minimum and maximum. | none |
| @Size(min=, max=) | yes | field/property. Supported types are String, Collection,Map and arrays. | Check if the annotated element size is between min and max (inclusive). | Column length will be set to max. |
| @Valid | yes | field/property | Perform validation recursively on the associated object. | none |
本文深入探讨了Java Bean验证注解的使用方法,包括@AssertFalse、@AssertTrue、@DecimalMax、@DecimalMin、@Digits、@Email、@Future、@Length、@Max、@Min、@NotNull、@NotEmpty、@Null、@Past、@Pattern、@Range、@Size、@Valid等常用注解的详细解释与实例应用。
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