C#实现远程连接ORACLE数据库的方法

/// <summary>
/// 测试数据库连通
/// </summary>
public static bool db_connection_test(string str_uid, string str_pwd, string str_serveraddr, string str_port,string str_dbname, ref string strErr)
{
        string str_conn = string.Format("user id={0};password={1};data source=(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST={2})(PORT={3}))(CONNECT_DATA=(SERVICE_NAME={4})))",str_uid, str_pwd, str_serveraddr, str_port, str_dbname);//连接字符串格式化
         OracleConnection Conn = new OracleConnection(str_conn);//定义连接实例
        try
        {
            Conn.Open();//通过自带的方式打开连接，测试连接实例
            Conn.Close();
            return true;
        }
        catch (Exception ex)
        {
            strErr = ex.Message;
            return false;
        }
}