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Jakarta Struts Cookbook
book

Jakarta Struts Cookbook

by Bill Siggelkow
February 2005
Intermediate to advanced content levelIntermediate to advanced
528 pages
12h 53m
English
O'Reilly Media, Inc.
Content preview from Jakarta Struts Cookbook

7.5. Forwarding Users to a Module

Problem

You want to forward control from one module to a page in another module.

Solution

If the link is for a JSP page and not an action, create an action of type ForwardAction for that page in the target module's struts-config.xml file. Specify the path to the JSP page as the value of the parameter attribute:

<action   path="/module1Menu"
          type="org.apache.struts.actions.ForwardAction"
     parameter="/mod1/module1Menu.jsp"/>

Then define a global forward, in the struts-config.xml file of the source module, with the module attribute set to the target module prefix and the path attribute set to the name of the action you just created:

<forward name="goToModule1" module="/mod1" path="/module1.do"/>

If the link is for an action in the other module, then specify the path to the action, making sure to include the Struts ActionServlet prefix or suffix (for example, .do):

<html:link forward="goToModule1">Go To Module 1</html:link>

Discussion

You would think that you could create a link to a page in another module by specifying the module attribute on the global forward:

<forward name="goToModule1" module="/mod1" path="/module1.jsp"/>

Unfortunately, this will not work. The URL to the page is correctly generated as http://localhost/jsc-ch07/mod1/module1.jsp; however, internally Struts still thinks that you are in the source module. Module-specific Struts entities such as global forwards and message resources will not be available on the target page because Struts has not switched ...

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Publisher Resources

ISBN: 059600771XSupplemental ContentErrata Page