Liferay File Upload

Liferay file upload tutorial provides sample code to upload files and how to handle it in MVC Portlet.

Let’s jump into creation of Portlet  to upload a file.

• view.jsp: view.jsp file contains form that will have file input

  1. <%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>
     <%@ taglib uri="http://liferay.com/tld/aui" prefix="aui" %>
     <%@ taglib uri="http://liferay.com/tld/theme" prefix="liferay-theme" %>
     <%@ taglib uri="http://liferay.com/tld/ui" prefix="liferay-ui" %>
     <%@ taglib uri="http://liferay.com/tld/util" prefix="liferay-util" %>
     <%@ taglib uri="http://liferay.com/tld/portlet" prefix="liferay-portlet" %>
     <liferay-theme:defineObjects/>
     <portlet:defineObjects/>
     
     This is the <b>Fileupload</b> portlet.
     
     <portlet:actionURL var="uploadFile" name="uploadFileAction">
     
     </portlet:actionURL>
     <aui:form action="<%=uploadFile %>" method="post" enctype="multipart/form-data">
      <aui:input type="file" name="sampleFile" />
      <button type="submit" class="defaultButton" style="margin-left: 10px;">Upload</button>
     </aui:form>

• Action Controller:   In the action method,  use the below line of code to get UploadPortletRequest from actionRequest and use uploadPortletRequest.getFile(“{form-input-name}”) to get the File contents Directly

  •      UploadPortletRequest uploadPortletRequest = PortalUtil.getUploadPortletRequest(actionRequest); 

• UploadPortlet.java file

  1. public class UploadPortlet extends MVCPortlet {
      
      
      public void uploadFileAction(ActionRequest actionRequest,ActionResponse actionResponse){
      
            UploadPortletRequest uploadPortletRequest = PortalUtil.getUploadPortletRequest(actionRequest); 
            ByteArrayFileInputStream inputStream = null;
             try {
                  File file = uploadPortletRequest.getFile("sampleFile");
                  if (!file.exists()) {
                    System.out.println("Empty File");
                 }
                if ((file != null) && file.exists()) {
                       inputStream = new ByteArrayFileInputStream(file, 1024);
                        byte[] data;
                        try {
                               data = FileUtil.getBytes(inputStream);
                          } catch (IOException e) {
                                  e.printStackTrace();
                           }
                }
      }
      finally {
      StreamUtil.cleanUp(inputStream);
      }
      }
     
     }

Deploy the portlet and access the portlet on page.

Hope this helps!!

Download Liferay File Upload Java  Code Here