DriverManger.registerDriver(new com.mysql.jdbc.Driver()) 的作用：
When the method getConnection is called, the DriverManager will attempt to locate a suitable driver from amongst those loaded at initialization and those loaded explicitly using the same classloader as the current applet or application.
然后就可以通过函数调用获取实现了Connection接口的对象...
JDBC笔记
标签：etc led driver 不同 apple mon ble ... cti