The management of database connection is a difficult point in the development of RES(Remote Education System) based on JDBC in that it is one of the main factors which can resolve the features of RES.

• 在基于JDBC的远程教育系统的应用开发中,数据库连接的管理是一个难点,因为它是决定该系统应用性能的一个重要因素。