This data will be saved to the ValueStack during processing of requests.

这些数据会在处理请求过程中保存到ValueStack中。

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ValueStack, one of the powerful features of Struts 2, holds all the data during processing of a request.

ValueStack是Struts 2的强大功能之一，用于保存处理请求过程中的所有数据。

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ValueStack stores a stack of objects, and this data will be exposed to the other parts of the framework.

ValueStack保存一个对象栈，这些数据将会公开给框架其他部分。

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