Load file via table in Struts 2

I need to upload multiple files at once. I added these files to the table. I want to send these files added to the table to my action class. but i can't do it ??

my jquery is like

    $(document).ready(function(){
        $("#table").hide();
        $("#table1").hide();                        
        $('#fileButton').on("click",function(e) {
            e.preventDefault();
        });
    });

      

        
        
        
      

    

these files are added to the table

function addFile() {
    var fileName = $("#myFile").val();

    if(fileName.lastIndexOf('/')!=-1) {
        fileName = fileName.substring(fileName.lastIndexOf('/')+1);
    } else if(fileName.lastIndexOf('\\')!=-1){
        fileName = fileName.substring(fileName.lastIndexOf('\\')+1);
    }

    if(!isFilePresent(fileName)){
        $("#table").show();
        $("#table1").show();
        var row = '<tr><td class="filename">'+fileName+'</td></tr>';
        $("#myTable tbody").append(row);
    }   
    $("#myFile").val("");
} 

      

        
        
        
      

    

This is my form

<form action="documentUpload" method="POST"  enctype="multipart/form-data">
    <s:file label="File (1)" id="myFile" name="upload" /> 

    <input type="button" value="ADD" class="Button" 
             id="fileButton" onclick="addFile();"/>

    <table id="myTable">
        <thead>
            <tr>
            <div>File Type</div>
            </tr>
        </thead>
        <tbody>
        </tbody>
    </table>

    <s:submit  value="Upload" id="table1"/>
</form>

      

        
        
        
      

    

This is my struts.xml entry

<action name="documentUpload" class="objDocumentUpload" method="upload">
    <result name="success">/jsp/documentUpload2.jsp</result>
    <result name="input">/jsp/dashboard.jsp</result>
</action>

      

        
        
        
      

    

This is my action class.

public class FileUploadAction {
    private List<File> uploads = new ArrayList<File>();

    public String upload() throws Exception {    
        int upload12=uploads.size();
        System.out.println(upload12);
        return SUCCESS;
    }

      

        
        
        
      

    

I can successfully add files to the table. when I click the Load button, the control is passed to my action class. But in the upload method I get the size upload12

as zero.

Please provide me with some useful solution so that I can upload the file via a table