problem after Downloads of file components no work page no update

[simone santos]

Hello
Good afternon
Please I tried different ways no got success
I use Icefaces, liferay (portlets) I used servlet for make downloads of file, The download ok, but after the components no work, only If I tightens F5

I use this for send idData to servlet

String url = baseURL + "/FileServlet?" + cods;

        try {

            String encodeURL = context.getExternalContext().encodeResourceURL(url);
            context.getExternalContext().redirect(encodeURL);
            
        } catch (Exception e) {
        }

 <ice:panelGrid>
                        <ice:commandButton value="Download Selected"  action="#{selectt.download}"   />
                    </ice:panelGrid>

I tried response.setHeader("Refresh", "4"); in my servlet , work only in Firefox, but if I tightens to cancel Download no work the page stop and IE, Chrome, Safari no work

I tried use this target="_blank" , <ice:outputLink too no work

I no know more what search I no know if is because liferay

please can someone help me please

thank you

[Tim Holloway]

Normally I do downloads by coding an "h:outputLink" tag on the JSF page that the user requests the download from. I can make this link look just like a button if I use CSS to alter its appearance.

The outputLink tag automatically attaches the session ID and URL context path, so no backing bean coding is required.

[simone santos]

Hello
thank you by replay

I tried with <h:outputLink not worked
I will explain
I tried

 public String download() {
       String cods = "";
        List<Integer> way = new ArrayList<Integer>();

     for (Dados dad : x) {
            if (dad.isMarcador()) {

                Integer cc = new Integer(dad.getIdDados());
                if (cc != null) {
                    way.add(cc);
                    dad.setMarcador(false);
                }

            }
       }
        Iterator ite = way.iterator();
        cods = "";
        while (ite.hasNext()) {
            cods += "fileId=";
            cods += (Integer) ite.next();
            if (ite.hasNext()) {
                cods += "&";
            }

        }

return cods;
       
    }  

I have a datatable which will have a list of data, this variable x represents the data list
I have also selectBooleanCheckbox
this is take what has been selected, the file that the User selected to download
and keep this array of Integer way
this my Iterator is the way I found to move to servlet
fileId = 333
and is stored in the variable cods

I did so

 <h:outputLink  value="FileServlet?#{selectt.download}"  target="_blank"  >
                       <h:outputText value="Download Selected"/> 
                    </h:outputLink>

the error in the property download
Do you know any other way I can do this
Why did so

public void download() {
        FacesContext context = FacesContext.getCurrentInstance();

       String baseURL = context.getExternalContext().getRequestContextPath();
        String cods ; 
        List<Integer> way = new ArrayList<Integer>();


        for (Dados dad : x) {
            if (dad.isMarcador()) {

                Integer cc = new Integer(dad.getIdDados());
                if (cc != null) {
                    way.add(cc);
                    dad.setMarcador(false);
                }

            }


        }
        Iterator ite = way.iterator();
        cods = "";
        while (ite.hasNext()) {
            cods += "fileId=";
            cods += (Integer) ite.next();
            if (ite.hasNext()) {
                cods += "&";
            }

        }
       
        String url = baseURL + "/FileServlet?" + cods;

        try {

           String encodeURL = context.getExternalContext().encodeResourceURL(url);
            context.getExternalContext().redirect(encodeURL);

        } catch (Exception e) {
        }

  }   

<h:commandButton value="Download Selected" action="#{selectt.download}"  />

The problem this like that after the file download
components does not work
works only if I press F5

thank you