u03studentformvalid.java

持久层hibernate技术使用的一个例子

package cn.hope.front.form.validation;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.validator.Field;
import org.apache.commons.validator.GenericValidator;
import org.apache.commons.validator.ValidatorAction;
import org.apache.commons.validator.util.ValidatorUtils;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.validator.Resources;

import cn.hope.front.bo.U03StudentBO;
import cn.hope.front.pojo.Student;

public class U03StudentFormValid {
	
	public static boolean studentExist(Object bean, ValidatorAction va, Field field,
			ActionMessages errors, HttpServletRequest request) {
		String strUserName = ValidatorUtils.getValueAsString(bean, field
				.getProperty());

		try {
			if (!GenericValidator.isBlankOrNull(strUserName)) {
				U03StudentBO u03StudentBO = new U03StudentBO();
				Student student = u03StudentBO.searchByKey(strUserName);
				if (student != null) {
					errors.add(field.getKey(), Resources.getActionMessage(
							request, va, field));
					return false;
				}
			}
		} catch (Exception e) {
			errors.add(field.getKey(), Resources.getActionMessage(request, va,
					field));
			return false;
		}
		return true;
	}
	public static boolean stuSPassportrt(Object bean, ValidatorAction va, Field field,
			ActionMessages errors, HttpServletRequest request) {

		try {
			String strSPassportrt = ValidatorUtils.getValueAsString(bean, field
					.getProperty());

			if(strSPassportrt.length()!=18 && strSPassportrt.length()!=15){
				errors.add(field.getKey(), Resources.getActionMessage(request, va,
						field));
				return false;
			}
		} catch (Exception e) {
			e.printStackTrace();
			return false;
		}
		return true;
	}
}