JDK处理规范：
JDK1.4
Note: A ResultSet object is automatically closed by theStatement object that generated it when that Statement object is closed,re-executed, or is used to retrieve the next result from a sequence of multipleresults. A ResultSet object is also automatically closed when it is garbagecollected.
Note: A Statement object is automatically closed when it isgarbage collected. When a Statement object is closed, its current ResultSetobject, if one exists, is also closed.
Note: A Connection object is automatically closed when it is garbagecollected. Certain fatal errors also close a Connection object.
JDK1.5
Releases this ResultSet object's database and JDBC resources immediatelyinstead of waiting for this to happen when it is automatically closed.
Note: A ResultSetobject is automatically closed by the Statement object that generated it whenthat Statement object is closed, re-executed, or is used to retrieve the nextresult from a sequence of multiple results. A ResultSet object is alsoautomatically closed when it is garbage collected.
规范说明：
1.垃圾回收机制可以自动关闭它们；
2.Statement关闭会导致ResultSet关闭；
3.Connection关闭不一定会导致Statement关闭。 |
