当把java的法典从单册中删除,或者更好地利用个人联系,这是否有意义? 每当要求打字稿后,是否把 j子/factor子/帽子重新贴出;
例如,我有一个外部程序,要求打上手稿,然后用手法打上支架,执行1个或1个以上行(频率、插入、更新和删除)的支架。 这是一种单独的批量过程,不使用像目录这样的托盘集装箱。 我的外部进程已经呼吁这一手稿。
我的环境是一种双管齐下的文件,使用 spring干(主要)法,用于 d处理和集合。
提前感谢!
当把java的法典从单册中删除,或者更好地利用个人联系,这是否有意义? 每当要求打字稿后,是否把 j子/factor子/帽子重新贴出;
例如,我有一个外部程序,要求打上手稿,然后用手法打上支架,执行1个或1个以上行(频率、插入、更新和删除)的支架。 这是一种单独的批量过程,不使用像目录这样的托盘集装箱。 我的外部进程已经呼吁这一手稿。
我的环境是一种双管齐下的文件,使用 spring干(主要)法,用于 d处理和集合。
提前感谢!
In your case, a connection pool probably only has a limited benefit, since you rightly said that whenever the JVM is shut down and started again, you would have to create the connection pool again. You could still use the pool if you want to benefit from using the DataSource
interface instead of creating the connection directly. If your processing is done in a single thread, make sure that the size of the connection pool is only 1.
如果你在同一过程中重新使用多个线索,连接库可能更有意义,而且你可以受益于其特征。
如果你向数据库发出如此多的电话,那么你就应考虑使用连接库,使连接的初始化成本很高。
否则,如果(或如果)你能够把管理任务序列化的批量过程,一个连接就足够了。 Spring-JDBC还提供单一连接的“集合”工厂标的检测,该标物也应为你工作(因此,你不必处理锅炉ating)。
在资源和业绩方面(反应时间),开放数据库连接非常昂贵。
当you t use connectionoku时,您获得联系、使用并随后关闭。 每次需要非行互动时都会重复。
连接通过建立可再利用的联通库,节省了每次建立联系的时间和资源。
您是否使用服务器集装箱或独立应用无关紧要。 这取决于您的申请(网站/独立)与数据库互动的方式。
如果你的申请有许多平行操作,同时使用数据库,将非常有用。
因此,接通库的工作和关联性取决于申请与非行互动的方式,而不管其网络应用还是独立。
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