这是处理数据库异常的一种更好的方法。

It's a much better approach to doing database exceptions.

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数据库异常关闭后，重起时，恢复关闭时的任何作业。

Upon database startup after an abnormal database shutdown, recovers any jobs that were running.

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这是因为一些数据库被配置为会杀掉长时间空闲的连接，网络或数据库相关的异常也可能会杀死连接。

This is because some databases are configured to kill long idle connections and a network or database related exception may also kill a connection.

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