Upload Struts

public class UploadCreditoForm extends ActionForm {  
	/**
	 * Objeto form do Struts
	 */
	private FormFile arquivo;

.....
}

<html:form action="/livreiro/UploadCredito.do" method="post" enctype="multipart/form-data">

<td><html:file property="arquivo" size="50"></html:file> </td>

OutputStream is = new FileOutputStream(f);
is.write(propriedadeDaForm.getFileData());
is.flush();
is.close();

boolean isMultipart = FileUpload.isMultipartContent(request);   
        boolean uploadDone = false;   

  	     if (isMultipart) {   
  	         //local onde 
  	    	 String strFilePath = getServlet().getServletContext().getRealPath("/") + "\\docs";   
  	         System.out.println("PATH " + strFilePath);
 	            
  	         // Pegando o formulário   
  	         AudITCForm uploadForm = (AudITCForm)form;   
  	            
  	         //Pegando o File do formulário   
  	         FormFile formFile = uploadForm.getCaminho();   

  	  
  	         //Pegando o nome do arquivo   
  	         String strFileName = formFile.getFileName();            

  	         byte dataFile[] = formFile.getFileData();   
  	            
  	         File file = new File(strFilePath + "\\" + strFileName); 
  	         
	  	       OutputStream out = new FileOutputStream(file);  
	           out.write(dataFile);  
	           out.close();  
	             
	           uploadDone = true;  
}