Will a new ActionContext and ValueStack be created

2019-08-15 04:00发布

My questions are:

1) In Struts2, does every action object have its own corresponding ActionContext and ValueStack?

In other words, for every new request a new action object is created. Does this mean every time a new action object is created, a new ActionContext and ValueStack also get created?

2) Consider this scenario:

Action1------1st req------->view.jsp------2nd req--------->action2

So when a request comes for action1 a new object of action1 and corresponding ActionContext and ValueStack will get created.

From view.jsp (upon clicking hyperlink) a new request goes for action2.

Does this mean that previous ActionContext and ValueStack (related to action1) gets destroyed and a new ActionContext and ValueStack (for action2) gets created?

3) Suppose I store something in ActionContext (of action1) in view.jsp and then click on hyperlink for action2 (from view.jsp), will that data along with the ActionContext (of action1) get lost?

Thanks.

1条回答
We Are One
2楼-- · 2019-08-15 04:36

A new ActionContext and ValueStack are created for each request. This usually means for each action, but not always (in the case of action chaining). These per-request objects fall out of scope at the end of the request. Anything you store in them is then gone at that point.

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