Question

I need to stay on the same page after Item update, but I need the item id to know where to go on success. I tried a few examples:

First one:

    <action
        name="add-item"
        method="addItem"
        class="com.deveto.struts.actions.ItemsAction" >
        <interceptor-ref name="defaultStack"/>
        <result name="success" type="redirectAction">
            <param name="actionName">show-update-item</param>
            <param name="itemId">${itemId}</param>
        </result>
    </action>

Second one:

    With an Action variable and setter & getter methods.

and

    <action
        name="add-item"
        method="addItem"
        class="com.deveto.struts.actions.ItemsAction" >
        <interceptor-ref name="defaultStack"/>
        <result name="success" type="redirectAction">show-update-item</result>
    </action>

Third one:

    With request.setAttribute("itemId", itemId); and request.getAttribute("itemId");

and

    <action
        name="add-item"
        method="addItem"
        class="com.deveto.struts.actions.ItemsAction" >
        <interceptor-ref name="defaultStack"/>
        <result name="success" type="redirectAction">show-update-item</result>
    </action>

Fourth one:

    With an Action variable and setter & getter methods.

and the type=”chain”

    <action
        name="add-item"
        method="addItem"
        class="com.deveto.struts.actions.ItemsAction" >
        <interceptor-ref name="defaultStack"/>
        <result name="success" type="chain">show-update-item</result>
    </action>

Eventually the Action is one, show-update-item.action.

But all of this is giving me the same null result.

Any advices?

Ex: show-update-item.action?itemId=33 (getParameter of itemId) -> editing some textfields -> submit (with itemId=33 in request) -> on succes redirectAction -> show-update-item.action (here when I try to getAttribute it is null)

Answer 1

If I understand correctly you’re staying on the same page with a different action after an item is selected on the first action. If this is the case, your first action definition should work:

<action
    name="add-item"
    method="addItem"
    class="com.deveto.struts.actions.ItemsAction" >
    <interceptor-ref name="defaultStack"/>
    <result name="success" type="redirectAction">
        <param name="actionName">show-update-item</param>
        <param name="itemId">${itemId}</param>
    </result>
</action>

Now that being said, you need to make sure you have accessor methods in both actions (we’ll call them action 1 and action 2) for itemId.

In action 1 ${itemId} is being retreived through the getter and in action 2 ${itemId} should be set through the setter method.

Another option would be to consider using sessionaware. Simply set a session variable in action 1 and in action 2 retrieve the session variable and remove it from session if you’re concerned about overhead. I tend to use session more often than not.