test

http://rsjblogs.blogspot.in/p/liferay-portlet-development.html


JAVA
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package com.liferay.dlupload;

import java.io.File;
import java.io.IOException;
import java.util.Calendar;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.upload.FileItem;
import com.liferay.portal.util.PortalUtil;
import com.liferay.util.bridges.mvc.MVCPortlet;


public class Document extends MVCPortlet {

public void uploadURL(ActionRequest req, ActionResponse resp)
             throws PortalException,IOException
             {System.out.println("inside upload action");
             FileItemFactory factory = new DiskFileItemFactory();
            
             ServletFileUpload upload = new ServletFileUpload(factory);
            
             Properties properties = PortalUtil.getPortalProperties();
            
             /*Creating parent directory where all file will be uploaded*/
            
             File directory = NewFile(properties.getProperty("liferay.home") + "/home/Uploaded_File");
             if(!directory.exists()){
                 directory.mkdirs();
                 System.out.println("type******************************dir existed");
             }
             /*Parsing action request to generate http servletRequest*/
             HttpServletRequest httpRequest = PortalUtil.getHttpServletRequest(req);
             try
             {
                 List fields =upload.parseRequest(httpRequest);
                 Iterator<FileItem> it = fields.iterator();
                 While (it.hasNext());
                 {
                     FileItem fileItem = it.next();
                   
                     if (!fileItem.isFormField())
                     {
                         String fileName = fileItem.getFileName();
                         File file = new File(directory, fileName);
                         String newFileName=generateFilename(file.getName().split("\\.")[0]);
                         File tempFile = File(directory, newFileName+"."+file.getName().split("\\.")[1]);
                       
                       
                         /*check the condition where same file exsist in the parent folder*/
                       
                         boolean bool = file.renameTo(tempFile);
                         try
                         {
                           
                             /*save the file to server*/
                             if(!file.exists()){
                                 fileItem.write(file); //saving into folder
                             }else{
                                 System.out.println("#######################    file" +file.getName() +" exists   ");

                             }
                                     
                           
                         }
                         catch (Exception e)
                         {
                             System.err.println("File  " + file.getName() + "could not be Saved");
                         }
                     }
                 }
             }
             private void While(boolean hasNext) {
    // TODO Auto-generated method stub
   
}
            private java.io.File NewFile(String string) {
    // TODO Auto-generated method stub
    return null;
}
            private File File(File directory, String string) {
    // TODO Auto-generated method stub
    return null;
}
            public String generateFilename(String name)
             {
                 Calendar cal = Calendar.getInstance();
                 return(name+"_"+cal.get(Calendar.DAY_OF_MONTH)+(cal.get(Calendar.MONTH)+1)+cal.get(Calendar.YEAR)+cal.get(Calendar.HOUR_OF_DAY)+cal.get(Calendar.MINUTE)+cal.get(Calendar.SECOND));
             }
             }
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<%@ include file="/view.jsp"%>
<portlet:actionURL name="uploadURL" var="uploadURL" />

<aui:form action=<%="uploadURL.toString()" %> "enctype="multipart/form-data">
<aui:input name="normal" type="text"/>
<label>upload</label>
<input type="file" name"fileupload[]" multiple>
<aui:button name="upload" tupe="submit">upload</aui:button>
</aui:form>

test

http://stackoverflow.com/questions/23452484/create-folder-and-upload-file-using-servlet
vivekliferayblogspote.blogspot.in/2013/12/liferay-61-multiple-image-upload.html
package com.upload.doc;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.ProcessAction;

import com.liferay.portal.kernel.upload.UploadPortletRequest;
import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.util.PortalUtil;
import com.liferay.util.bridges.mvc.MVCPortlet;



  public class DocUpload extends MVCPortlet {
      @ProcessAction(name = "addProduct")
      public void addProduct(ActionRequest request, ActionResponse response) {
              String name = ParamUtil.getString(request,"name");
                  String anotherTryForName = request.getParameter("name");
              System.out.println(name);
                  System.out.println(anotherTryForName);
              System.out.println(uploadImg(request));
      }
      private String uploadImg(ActionRequest request) {

              String realPath = getPortletContext().getRealPath("/");
             
              byte[] bytes = null;
              try {
                  UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(request);
                  String sourceFileName =uploadRequest.getFileName("imgFile");
                /***********************************************
                File newFile=null;
              
                if ((bytes != null) && (bytes.length > 0)) {
               File file = new File("/home/neosoft/test",file);
                try {
                newFile = new File(realPath+"html/portlet/"+sourceFileName);
                FileInputStream fileInputStream = new FileInputStream(file);
                FileOutputStream fileOutputStream = new FileOutputStream(newFile);           
                fileInputStream.read(bytes);              
                fileOutputStream.write(bytes, 0, bytes.length);                  
                fileOutputStream.close();
                fileInputStream.close();
         }
                ************************************************/
                
                  File file = uploadRequest.getFile("imgFile");
                  try {
                      bytes = FileUtil.getBytes(file);
                  } catch (IOException e2) {
                      e2.printStackTrace();
                  }
                  File newFile = null;

                  if ((bytes != null) && (bytes.length > 0)) {

                      try {
                          newFile = new File(realPath + "demo/productimg/"+ sourceFileName);
                          FileInputStream fileInputStream = new FileInputStream(file);
                          FileOutputStream fileOutputStream = new FileOutputStream(newFile);
                          fileInputStream.read(bytes);
                          fileOutputStream.write(bytes, 0, bytes.length);
                          fileOutputStream.close();
                          fileInputStream.close();
                      } catch (FileNotFoundException e) {
                          System.out.println("File Not Found.");
                          e.printStackTrace();
                      } catch (IOException e1) {
                          System.out.println("Error Reading The File.");
                          e1.printStackTrace();
                      }
                  }
                  return sourceFileName;
              } catch (Exception e) {
                  System.out.println("Exception::::" + e.getMessage());
                  return "";
              }
      }    
     
     
}



****************************

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet"%>

 <portlet:actionURL var='create' name="addProduct">
</portlet:actionURL>   
<form id="addform" action="<%=create%>" method="post" enctype="multipart/form-data">

    <dl class="dl-horizontal">
        <dt>Product Name</dt>
        <dd>
            <input type="text"  name="name"  />
        </dd>
        <dt>Image File</dt>
        <dd>
            <input type="file" name="imgFile" >
        </dd>
    </dl>
        <button type="submit">Save</button>
</form>

JSP