Getting Data from Struts ActionForm to a JSP

[Brian Egger]

I have a JSP that calls an ActionForm with a Collection, which gets it's data from a UseCase. But when I do a <logic resent for the ActionForm it does not proceed with the <logic:iterate of the Collection. I looked at the UseCase and the data is there. But I am guess that don't have it config'ed correctly. So some outside opinions would help. Thanks

code

 //this is the call in the JSP
 
<logic :-P	 resent name="ProjectsForm" property="projectsList" scope="session">
<bean :mrgreen: efine id="projects" name="ProjectsForm" property="projectsList" type="java.util.Collection" scope="session" toScope="session"/>
 <form action="displayProject.do" method="POST">
  <table width="743" cellpadding="2" cellspacing="2" >
     <tr>
  <td> 
       <logic:iterate id="list"  name="ProjectList">
  <input type="radio" value="<bean:write name="list" property="projectID" />" name="projectSelection"><bean:write name="list" property="projectName" />
       </logic:iterate>
  </td>
 </tr>
</table>
 </form>
 

 

 
//this is the ActionForm 
 
public class ProjectsForm extends ActionForm{
 

   private Collection list ;
 

 
    public Collection getProjectsList() {
  
        return list ;
    }
 
 
    public void setProjectsList(Collection list) {
  
        this.list = list ;
    }
    
    public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
      return null;
      
    }
 

}
 

 
//this is the struts-config
 
<?xml version="1.0" encoding="ISO-8859-1" ?>
 
<!DOCTYPE struts-config PUBLIC
  "-//Apache Software Foundation//DTD Struts Configuration 1.0//EN"
  "http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd">
 
<struts-config>
 <form-beans>
  <form-bean name="ProjectsForm" type="com.alliance.data.form.ProjectsForm" />
 
 </form-beans>
 
  <action-mappings>
    <action path="/login" type="com.alliance.action.LoginAction"/>
    <action path="/ProjectsList" type="com.alliance.action.ProjectsListAction" name="ProjectsForm" scope="request">
      <forward name="Projects" path="/ProjectsList.jsp" />
    </action>
  </action-mappings>
</struts-config>
 

 

any help would be great. Thanks in advance!

[Dirk Schreckmann]

Welcome to JavaRanch, Brian!

I'm moving this to the Web Application Frameworks forum...

[Roel De Nijs]

brian,

if you add following line under the tag </logic:present>

  
<logic:notPresent name="ProjectsForm" property="projectsList" scope="session">
<h6>NOT PRESENT</h6>
</logic:notPresent>

is then the text "NOT PRESENT" shown in your jsp-file ? If so, try changing

 <action path="/ProjectsList" type="com.alliance.action.ProjectsListAction" name="ProjectsForm" scope="[B]request[/B]"> 

into

 <action path="/ProjectsList" type="com.alliance.action.ProjectsListAction" name="ProjectsForm" scope="[B]session[/B]"> 

or change

 <logic:present name="ProjectsForm" property="projectsList" scope="[B]session[/B]"> 

into

 <logic:present name="ProjectsForm" property="projectsList" scope="[B]request[/B]"> 

[Brian Egger]

I tried it, but unfortunately it did not work. I know the class in notPresent now. So I am guessing that my ActionClass might be to blame.

 public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
  throws Exception {
      
      HttpSession session = request.getSession() ;
      String username = session.getAttribute("username").toString() ;
      
      Collection projectsList = new ArrayList() ;
      ProjectsForm pf = (ProjectsForm) form ;
      ProjectsUC puc = new ProjectsUC() ;
      
       try {
         projectsList = puc.getProjectsByUser(username) ;
         
       }
       catch(DataAccessException e) { 
          
          throw new DataAccessException("This is from the ProjectsListAction: " + e.getMessage()) ;
             
       }