泛型持久层实现（深度减轻代码量）

import java.math.BigDecimal;
import java.util.List;

import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

@Repository
public class BaseDao {
	@Autowired
	private SessionFactory sessionFactory;

	public SessionFactory getSessionFactory() {
		return sessionFactory;
	}

	public void setSessionFactory(SessionFactory sessionFactory) {
		this.sessionFactory = sessionFactory;
	}

	@SuppressWarnings("unchecked")
	public 
  
    List
   
     queryBaseObject(String sql, Class
    
      entity) { return this.getSessionFactory().getCurrentSession().createSQLQuery(sql) .addEntity(entity).list(); } public 
     
       void addBaseObject(T entity) { this.getSessionFactory().getCurrentSession().save(entity); } public 
      
        void updateBaseObject(T entity) { this.getSessionFactory().getCurrentSession().saveOrUpdate(entity); } public 
       
         void deleteBaseObject(T entity) { this.getSessionFactory().getCurrentSession().delete(entity); } public void insertOrUpdateObject(String sql) { this.getSessionFactory().getCurrentSession().createSQLQuery(sql) .executeUpdate(); } @SuppressWarnings("unchecked") public 
        






          T querySingleObject(int id, Class
         
           entity) { return (T) this.getSessionFactory().getCurrentSession() .load(entity, id); } @SuppressWarnings("unchecked") public 
          
            T querySingleobject(String sql, Class
           
             entity) { return (T) this.getSessionFactory().getCurrentSession() .createSQLQuery(sql).addEntity(entity).uniqueResult(); } @SuppressWarnings("rawtypes") public int queryListCount(String sql) { List gg = this.sessionFactory.getCurrentSession().createSQLQuery(sql) .list(); int result = ((BigDecimal) gg.get(0)).intValue(); return result; } public void deleteBaseObject(String sql) { this.getSessionFactory().getCurrentSession().createSQLQuery(sql) .executeUpdate(); } }