Hibernate編寫通用數據庫操作代碼演示

基于SQL的通用select方法
public ArrayList select(String sql) throws Exception{
    Session session = HibernateSessionFactory.currentSession();
    Connection con = session.connection();
    PreparedStatement pstmt = con.preparedStatement(sql);
    ResultSet rs = pstmt.executeQuery();
    ResultSetMetaData rsmd = rs.getMetaData();
    Hashtable ht = null;
    ArrayList array = new ArrayList();
    while(rs.next()){
        ht = new Hashtable();
        for(int i=0;i             ht.put(rsmd.getColumnName(i+1),rs.getObject(i+1));
        }
        array.add(ht);
    }
    HibernateSessionFactory.clossSession();
    return array;
}

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