categorybusinessimpl.java

本系统是网上购物的详细代码

package cn.com.tarena.ecport.biz.impl;

import org.hibernate.HibernateException;

import cn.com.tarena.ecport.biz.ICategoryBusiness;
import cn.com.tarena.ecport.common.util.HibernateUtil;
import cn.com.tarena.ecport.dao.ICategoryDAO;
import cn.com.tarena.ecport.dao.factory.DAOFactory;
import cn.com.tarena.ecport.exception.ECPortException;
import cn.com.tarena.ecport.pojo.Category;

public class CategoryBusinessImpl implements ICategoryBusiness {

	public Category getCategoryById(Long categoryid) throws ECPortException {
		
		try {
			ICategoryDAO icd = (ICategoryDAO) DAOFactory.getDAO(ICategoryDAO.class.getName());
			HibernateUtil.getSessionFactory().getCurrentSession().beginTransaction();
			Category category = icd.findById(categoryid);
			HibernateUtil.getSessionFactory().getCurrentSession().beginTransaction().commit();
			return category;
		} catch (HibernateException e) {
			e.printStackTrace();
			HibernateUtil.getSessionFactory().getCurrentSession().beginTransaction().rollback();
		}
		return null;
	}
}