编写一关于Microsoft Access数据库连接池及其管理的相关类，要求能从XML配置文件中读取该数据库驱动程序，数据库名，连接池最大连接数，最多等待用户数，查询数据库超时时间及用户最长等待时间等信息；并编写一测试程序，用于模拟多客户对于数据库的访问。-The preparation of about one Microsoft Access database connection pool and its management related request from the XML co

数据库连接池的相关代码，采用XML构建，应用到数据库的相关知识，上课时学到的-Database connection pool related code, the use of XML to build, the application of relevant knowledge to the database, the class learned

自己写的一个工具类,里面包含了连接池,字符串处理,properties文件赢取,xml文件解析,正则式工具类等.-Write a utility class, which includes the connection pool, string processing, properties file to win, xml file parsing, regular expression tools and so on.