javax.validation自定义验证注解

package cc.zeelan.framework.utils.valid.custom;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.validation.Constraint;
import javax.validation.Payload;

/**
 * 自定义ID验证规则
 * @author witts
 * @project core-utils
 * @package cc.zeelan.framework.valid.custom
 * @version 1.0
 * @message  林花谢了春红，太匆匆。无奈朝来寒雨，晚来风
 */
@Documented
@Constraint(validatedBy = {_IDCustomValid.class })
@Target({ElementType.METHOD, ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
public @interface IDCustomValid {
    
    String message() default "ID为32位有效ID";
    
    Class<?>[] groups() default {};
     
    Class<? extends Payload>[] payload() default {};
}

package cc.zeelan.framework.utils.valid.custom;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

/**
 * ID注解规则设置
 * @author witts
 * @project seller-core-utils
 * @package cc.zeelan.framework.utils.valid.custom
 * @version 1.0
 * @message  林花谢了春红，太匆匆。无奈朝来寒雨，晚来风
 */
public class _IDCustomValid implements ConstraintValidator<IDCustomValid,String>{ 
	@Override
	public void initialize(IDCustomValid constraintAnnotation) {}

	@Override
	public boolean isValid(String value, ConstraintValidatorContext context) {
		if(null == value) {
			return false;
		}
		if(value.trim().length()>=32) {
			return true;
		}
		return false;
	}

}