userdao.java

Italk吧简易论坛 基于struts+extjs+hibernate+spring+mysql开发。 /catch目录为系统截图 安装步骤： 1：安装MYSQL

package com.italk.dao.hibernate;
import java.util.List;

import com.italk.dao.IUserDAO;
import com.italk.vo.BaseEntity;
import com.italk.vo.User;

public class UserDAO extends BaseHibernateDAO implements IUserDAO {

	public BaseEntity getById(Long id) {
		// TODO Auto-generated method stub
		log.debug("start get user by id:"+id);
		User u=(User) this.getHibernateTemplate().get(User.class, id);
		log.debug("end get user by id:"+id);
		return u;
	}
	public User getByUserName(String userName) {
		log.debug("start get user by userName:"+userName);
		String query = "from User u where u.baseInfo.userName=" + "'"+userName+"'";
		List list=(List)this.getHibernateTemplate().find(query);
		User u=null;
		if(list.size() != 0) {
			u=(User)list.iterator().next();
		}
		log.debug("end get user by userName:"+userName);
		return u;
	}
	public boolean isExist(String userName) {
		// TODO Auto-generated method stub
		User u=getByUserName(userName);
		if(u == null) {
			return false;
		} else {
			return true;
		}
	}
}