15.2. Message flow

As an exercise, follow the message flow of this scenario which is explained here step by step. The operation flow is as follows (see Figure 15-1 on page 466).

1.
At initialization time, Portal invokes the initial View mode page configured in the portlet descriptor (portlet.xml): 
   <portlet-preferences>
             <preference>
                <name>com.ibm.struts.portal.page.view.html</name>
                <value>index.jsp</value>
             </preference>
             ..................
   </portlet-preferences>
2.
The index.jsp page sends a forward with the name welcome: 
   <logic:forward name="welcome"/>
3.
The configuration file (struts-config.xml) has a global forward indicating that the action welcome should be invoked: 
   <global-forwards>
         <forward name="welcome" path="/welcome.do"> </forward> ...

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