Is it possible to upload a file using <a4j:commandButton>

[madhusudan]

Hello Friends,
I m very new to seam ,I want to know is it possible to upload a file using a4j:commandButton or you can using AJAX.
If it is possible can u plz explain it to me.

Thanks

[danielc.roth]

I think you should look atb the rich:fileUpload component. Seam certainly can't ajax-upload a file, without putting quite some effort into it.

[madhusudan]

Thanks for your reply Roth,

I have checked the example of rich:fileUpload at:

http://livedemo.exadel.com/richfaces-demo/richfaces/fileUpload.jsf

I didn't find any way there to upload file without refreshing the page . Can you plz  tell what type of other things i have to do for
uploading a file.

As currently i m using s:fileupload with a:commandButton. And i m not able to upload file.

Thanks

[amitev]

For the record, it's not allowed to upload files using AJAX due to security reasons.

[madhusudan]

I don't know weather it is possible in seam or not, but i m very sure that it is possible in some of other scripting languages.

Thanks for your response

[infinity2heaven]

If I understood your question right, you want the file to be uploaded and an ajax event be fired for processing it and based on the outcome, a redirection should happen (without refreshing the page) when the upload is done.

Here is the code for that:-

<a4j:commandButton id="next" action="#{fileUpload.navigate}"    

  value="Proceed" id="next" styleClass="buttonRight"/>


<rich:fileUpload fileUploadListener="#{fileUploadBean.uploadListener}"  

   uploadData="#{fileUploadBean.processUploadData}">

<a4j:support event="onuploadcomplete" reRender="next" />

your fileUploadBean SFSB can have,

public void uploadListener(UploadEvent event) throws IOException {


   // process your file here

}


public String processUploadData(){

   /* if contains errors

     return "view id that contains errors";

   }else{

     return "success view id"; 

   }} */     

[madhusudan]

Thanks a lot for your response Priya.

I will check out this code.

[50341]

That is <s:fileUpload> not rich