userdao.java

自己做的关于spring框架的使用

package myspring.v3.hibernate;

import java.util.List;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class UserDAO extends HibernateDaoSupport implements IUserDAO{
	
	public void save(User transientInstance){
		getHibernateTemplate().saveOrUpdate(transientInstance);
		//getHibernateTemplate()
	}
	
	public void delete(User persistentInstance) {
		
		getHibernateTemplate().delete(persistentInstance);
		
		//getHibernateTemplate().getSessionFactory().openSession()
		
	}
	
	public User findById(java.lang.Integer id) {
		User instance = (User) getHibernateTemplate().get(User.class, id);
		return instance;
	}
	
	public List queryUsers(String name, String password){
		String[] paramNames = new String[]{"name", "password"};
		Object[] paramValues = new Object[]{name, password};
		//getHibernateTemplate().findByNamedQuery("queryUser");
		//getHibernateTemplate().findByNamedQueryAndNamedParam(queryName, paramName, value)
		return getHibernateTemplate().findByNamedQueryAndNamedParam("queryUser", paramNames, paramValues);
	}
}