Lifecycle of an ActionForm

博客介绍了浏览器请求的处理流程,包括请求被控制器接收,创建或回收ActionForm,调用reset(),将ActionForm存储在指定范围,从请求中填充ActionForm,对ActionForm调用validate(),若为真则调用execute(),最后转发到“success”,若失败则转发到input。

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Browser -> Request received by controller -> Create or recycle ActionForm
                                                  ->
                                             Call reset()
                                                  ->
                                             Store ActionForm in desired scope
                                                  ->
                                             Populate ActionForm from request
                                   Faled          ->
Browser   <-     Forward to input <------    Call validate() on ActionForm, if “true“
                                                  ->
                                             Call execute() on Action
                                                  ->
                                             Forward to “success“
                                                  |
Browser    <---------------------------------------

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