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Apache Struts 2 Documentation
Action Mapper & Action Mapping
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The ActionMapper fetches the ActionMapping object corresponding to a given request. Essentially, the ActionMapping is a data transfer object that collects together details such as the Action class and method to execute. The mapping is utilized by the Dispatcher and various user interface components. It is customizable through `struts.mapper.class` entry in `struts.properties`.

## Customize

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Custom ActionMapper must implement ActionMapper interface and have a default constructor.

## Next: Action Proxy & ActionProxy Factory