您不需要写任何代码来控制事务行为。

You do not need to write any code to control the transaction behavior.

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事务界定代码从DAO中分离出来。

Transaction demarcation code is separated from the DAO.

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与清单1中的示例不同，由于有宣告式事务划分，这段组件代码中没有事务管理代码。

Unlike the example in Listing 1, with declarative transaction demarcation there is no transaction management code in the component methods.

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