JDBC时序图 http://blog.csdn.net/luanlouis/article/details/30060755
DriverManager或者Driver创建Connection、Connection创建Statement、Statement又获得ResultSet
JDBC时序图 http://blog.csdn.net/luanlouis/article/details/30060755
DriverManager或者Driver创建Connection、Connection创建Statement、Statement又获得ResultSet