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The init method is called the after interceptor is instantiated and before calling intercept. This is the place to allocate any resources used by the interceptor.

The intercept method is where the interceptor code is written. Just like an action method, intercept returns a result used by Struts to forward the request to another web resource. Calling invoke on the parameter of type ActionInvocation will execute the action (if this is the last interceptor on the stack) or another interceptor.

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