spring數據驗證----驗證類

import com.mycompany.guodandanexception.EntityValidateFailedException;
import java.util.Set;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;

public class JsrValidator<T> {

    private static Validator validator;

    public static Validator getValidator() {

        ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
        validator = factory.getValidator();
        return validator;
    }

    public Boolean isValidatePassed(T domain) throws EntityValidateFailedException {
        JsrValidator.getValidator();
        Set<ConstraintViolation<T>> constraintViolations = validator.validate(domain);
        StringBuffer sb = new StringBuffer();
        if (constraintViolations.size() > 0) {
            for (java.util.Iterator<ConstraintViolation<T>> iterator = constraintViolations
                    .iterator(); iterator.hasNext();) {
                ConstraintViolation<T> cnstraintViolation = (ConstraintViolation<T>) iterator.next();
                sb.append(cnstraintViolation.getMessage() + "\n");
                System.out.println(cnstraintViolation.getMessage());
            }
            throw new EntityValidateFailedException(domain.getClass().getName() + " : " + domain.toString() + "的實體驗證未通過！\n 原因爲：\n" + sb.toString());
        }
        return true;

    }
}

public class EntityException extends RuntimeException {

    private static final long serialVersionUID = 1L;

    public EntityException() {
        super("實體異常！");
    }

    public EntityException(String message) {
        super(message);
    }

    public EntityException(String message, Throwable cause) {
        super(message, cause);
    }

    public EntityException(Throwable cause) {
        super(cause);
    }
}

public class EntityValidateFailedException extends EntityException {

    private static final long serialVersionUID = 1L;

    public EntityValidateFailedException() {
        super("實體驗證未通過！");
    }

    public EntityValidateFailedException(String message) {
        super(message + ",實體驗證未通過！");
    }

    public EntityValidateFailedException(String message, Throwable cause) {
        super(message, cause);
    }

    public EntityValidateFailedException(Throwable cause) {
        super(cause);
    }
}