StartWithValidation.class
@Documented
@Constraint(validatedBy = StartWithValidator.class )
@Target({METHOD, FIELD})
@Retention(RUNTIME)
public @interface StartWithValidation {
String message() default "不是正确的性别取值范围";
String start() default "_";
Class[] groups() default {};
Class[] payload() default {};
@Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER})
@Retention(RUNTIME)
@Documented
@interface List {
StartWithValidation[] value();
}
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StartWithValidator.class
public class StartWithValidator implements ConstraintValidator {
private String start;
@Override
public void initialize(StartWithValidation constraintAnnotation) {
start = constraintAnnotation.start();
}
@Override
public boolean isValid(String value, ConstraintValidatorContext context) {
if (!StringUtils.isEmpty(value)) {
return value.startsWith(start);
}
return true;
}
}
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运用
@StartWithValidation(message = "Param 'address' must be start with 'Beijing'.", start = "Beijing")
public String address;
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