USE DHTMLVAULT IN JSF1.2 CAN NOT UPLOAD SUCCESSFULLY

Vault
#1

I use dhtmlxvault in my JSF1.2 project,which can not upload successfully,now I will describe my code next,please help me ,to solve it.my project use Facelet+JSF1.2+seam+jpa;
so please see my testDhtmlxVault.xhtml:

未定义标题 
<script language="JavaScript" type="text/javascript">
    var vault = null;
    function doOnLoad(){
        vault = new dhtmlXVaultObject();
        vault.setImagePath("/Eppmcp/resources/dhtmlx/dhtmlxvault/imgs/");
        vault.setServerHandlers("/Eppmcp/pages/common/dictionary/UploadHandler.faces", "/Eppmcp/pages/common/dictionary/GetInfoHandler.faces", "/Eppmcp/pages/common/dictionary/GetIdHandler.faces");
        vault.onFileUploaded = function(file) {
            alert("id:" + file.id + ",name:" + file.name + ",uploaded:" + file.uploaded + ",error:" + file.error);
        };
        vault.create("vault1");
        vault.setFormField("customerId", "PS104");
        vault.setFormField("country", "UK");
}
</script>

<style>
body{font-family:arial;font-size:12px}
h1 {cursor:pointer;font-size:16px;margin-left:10px;line-height:10px}
xmp {color:green;font-size:12px;margin:0px;font-family:courier;background-color:#e6e6fa;padding:2px}
.hdr{
	background-color:lightgrey;
	margin-bottom:10px;
	padding-left:10px;
}
</style>
DHTMLX Vault sample

Add More Form Fields

pages.xml file is:

<?xml version="1.0" encoding="UTF-8"?> 




 <page view-id="/pages/common/dictionary/GetInfoHandler.xhtml" action="#{eppmcp.model.demo.test2.GetInfoHandler}">
 </page>

 <page view-id="/pages/common/dictionary/GetIdHandler.xhtml" action="#{eppmcp.model.demo.testbean.GetIdHandler}">
 </page>
and the action code is: @Name("eppmcp.model.demo.testbean") public class TestBean { 
public void GetIdHandler(){
	 System.out.print("in the method of GetIdHandler()!!!!");
	 HttpServletRequest request = FacesContextUtil.getRequest();
	 HttpServletResponse response = FacesContextUtil.getResponse();
	 String id =  request.getSession().getId().toString();
	 PrintWriter out;
	try {
		out = response.getWriter();
		out.println(id);
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace(); 
	}
	 HttpSession session = FacesContextUtil.getSession();
	 session.removeAttribute("FileUpload.Progress."+id);
	 session.setAttribute("FileUpload.Progress."+id,"0");
	 FacesContextUtil.getFacesContext().responseComplete();
}

and the eppmcp.model.demo.testbean.Test2 .java code is:
@Name(“eppmcp.model.demo.test2”)
public class Test2 {

public void GetInfoHandler(){
	System.out.print("in the method of GetInfoHandler()!!!!");
	HttpServletResponse response = FacesContextUtil.getResponse();
	HttpServletRequest request = FacesContextUtil.getRequest();
	HttpSession session = FacesContextUtil.getSession();
	PrintWriter out;
	try {
		out = response.getWriter();
		System.out.println(session.getAttribute("FileUpload.Progress."+request.getParameter("sessionId").toString().trim()));
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	FacesContextUtil.getFacesContext().responseComplete();
}

}
and the eppmcp.model.demo.testbean.Test1 .java code is:
@Name(“eppmcp.model.demo.test1”)
public class Test1 {

public void UploadHandler(){
	System.out.print("in the method of UploadHandler()!!!!");
	String uploadFolder = "c:\\upload\\";
	HttpServletResponse response = FacesContextUtil.getResponse();
	HttpServletRequest request = FacesContextUtil.getRequest();
	HttpSession session = FacesContextUtil.getSession();
	// Check that we have a file upload request
	boolean isMultipart = FileUpload.isMultipartContent(request);
	if (!isMultipart) {
		PrintWriter out;
		try {
			out = response.getWriter();
			out.println ("Use multipart form to upload a file!");
		}catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	} else {

	String fileId = request.getParameter("sessionId").toString().trim();
	        
	// Create a new file upload handler
	FileItemFactory factory = new ProgressMonitorFileItemFactory(request, fileId);
	ServletFileUpload upload = new ServletFileUpload(factory);

	// Parse the request
	List items;
	try {
		items = upload.parseRequest(request);
		// Process the uploaded items
		Iterator iter = items.iterator();
		while (iter.hasNext()) {
		    FileItem item = (FileItem) iter.next();
		    if (item.isFormField()) {
		        //processFormField
		    }else{
		        //processUploadedFile
				String fieldName = item.getFieldName();
				String fileName = item.getName();
				int i2 = fileName.lastIndexOf("\\");
				if(i2>-1) fileName = fileName.substring(i2+1);
				File dirs = new File(uploadFolder);
				dirs.mkdirs();

				File uploadedFile = new File(dirs,fileName);
				item.write(uploadedFile);
				session.removeAttribute("FileUpload.Progress."+fileId);
				session.setAttribute("FileUpload.Progress."+fileId,"-1");
		    }
		 }
	}catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	   }
	}  
    FacesContextUtil.getFacesContext().responseComplete();

}
so the problem is when the program entered the method of UploadHandler,the size of List item is 0 and the while (iter.hasNext()) is false,so i do not know how to solve it,please help me,thanks!!