带有自我调整功能Connection Pool（JDBC，使用mysql做为实例子）-With self-adjusting function Connection Pool (JDBC, use mysql as examples a)

一个实用的数据库连接池源码，目标数据库sqlserver 2000，并且附带了测试代码，你还可以自行修改。-A practical source of the database connection pool, database goal sqlserver 2000, and attached to the test code, you can also make its own decisions.

MYSQL数据库连接池，包含自动释放，自动增加连接功能，-MYSQL database connection pool, including the automatic release, automatic increase in connectivity,