Upload a file and store in server

[13年前 に Rad One によって更新されました。]

Hello

I want to upload and store a file in local tomcat server file server (something like CKEditor).

So I've created a portlet.
These are my important files:

MyUploadFilePortlet.java:

package com.mine.portlets;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.upload.UploadPortletRequest;
import com.liferay.portal.util.PortalUtil;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.GenericPortlet;
import javax.portlet.PortletException;
import javax.portlet.PortletPreferences;
import javax.portlet.PortletRequestDispatcher;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

import java.io.File;
import java.io.IOException;

/**
 * Portlet implementation class MyUploadFilePortlet
 */
public class MyUploadFilePortlet extends GenericPortlet {
 
	protected String editJSP;
	protected String viewJSP;

	private static Log _log = LogFactoryUtil.getLog(MyUploadFilePortlet.class);

	public void init() {
		editJSP = getInitParameter("edit-jsp");
		viewJSP = getInitParameter("view-jsp");
    }

	public void processAction(
    	ActionRequest actionRequest, ActionResponse actionResponse)
		throws IOException, PortletException {

		String description = actionRequest.getParameter("description");

		UploadPortletRequest lUploadPortletRequest = PortalUtil.getUploadPortletRequest(actionRequest);

		if (lUploadPortletRequest.getFileName("file") != null && !"".equals(lUploadPortletRequest.getFileName("file"))) {
			File file = lUploadPortletRequest.getFile("file");
			String fileName = lUploadPortletRequest.getFileName("file");
			file.setLastModified(System.currentTimeMillis());
			String fileAbsPath = file.getAbsolutePath();

			PortletPreferences prefs = actionRequest.getPreferences();

			prefs.setValue("VIDEODESCRIPTION", description);
			prefs.setValue("VIDEOURL", fileAbsPath);
			prefs.store();

			System.out.println("VIDEODESCRIPTION=" + description + " path=" + fileAbsPath + " file name=" + fileName);
		}
	}
        
	public void doEdit(
		RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {

		include(editJSP, renderRequest, renderResponse);
	}
        
	public void doView(
		RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {

		PortletPreferences prefs = renderRequest.getPreferences();

		String defaultValue = "";

		String description = (String) prefs.getValue("VIDEODESCRIPTION", defaultValue);
		String fileAbsPath = (String) prefs.getValue("VIDEOURL", defaultValue);

		renderRequest.setAttribute("ATTRIBUTE_VIDEODESCRIPTION", description);
		renderRequest.setAttribute("ATTRIBUTE_VIDEOURL", fileAbsPath);

		include(viewJSP, renderRequest, renderResponse);
	}

    protected void include(
    	String path, RenderRequest renderRequest,
    	RenderResponse renderResponse)
		throws IOException, PortletException {

        PortletRequestDispatcher portletRequestDispatcher = getPortletContext().getRequestDispatcher(path);

        if (portletRequestDispatcher == null) {
            _log.error(path + " is not a valid include");
        }
        else {
            portletRequestDispatcher.include(renderRequest, renderResponse);
        }
    }
}

view.jsp

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

<portlet:defineobjects />

&lt;%
String description = (String)request.getAttribute("ATTRIBUTE_VIDEODESCRIPTION");
String fileAbsPath = (String)request.getAttribute("ATTRIBUTE_VIDEOURL");
%&gt;

<h3>View mode</h3>
<p>video description: &lt;%= description %&gt;</p>
<p>video path: &lt;%= fileAbsPath %&gt;</p>

edit.jsp

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

<portlet:defineobjects />

<h3>Edit mode</h3>
<form action="<portlet:actionURL />" method="POST" name="<portlet:namespace />fm" enctype="multipart/form-data">
	<input type="text" name="<portlet:namespace />description"><br>
	<input type="file" name="<portlet:namespace />file"><br>
	<input type="submit">
</form>

So what I want to do exactly is play a video file in view mode.

But my first step is to store uploaded file in local server file system. The form for doing that is en edit mode. So far, in view mode I can get absolute path of the file, file name etc...

How to store an uploaded file ?

I've search through the forum but answers found did not work for me. I've tried DiskFileItemFactory class but I'm missing a lot of things.

Please help.

[12年前 に Suraj Bihari によって更新されました。]

Hi Rad,

To upload a file and store it on the server see the following snippet:

UploadPortlet.java

public class UploadPortlet extends GenericPortlet{

	protected String viewJSP;
	protected String process;
	protected Vector<!--?--> v=null;
	protected String realPath=null;

	public void init() throws PortletException {

		viewJSP = getInitParameter("view-jsp");
	}

	public void processAction(ActionRequest request, ActionResponse response) throws PortletException, IOException
	{  

		realPath = getPortletContext().getRealPath("/");
		System.out.println(realPath);

		byte[] bytes = null;
		PortletContext portletContext = request.getPortletSession().getPortletContext();
		try{ 

			UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(request);
			String sourceFileName =uploadRequest.getFileName("fileName");
			File file = uploadRequest.getFile("fileName");
			try {
				bytes = FileUtil.getBytes(file);
			} catch (IOException e2) {			
				e2.printStackTrace();
			}
			File newFile=null;

			if ((bytes != null) &amp;&amp; (bytes.length &gt; 0)) {

				try {

					System.out.println(sourceFileName);

					newFile = new File(realPath+"html/uploads/"+sourceFileName);
					FileInputStream fileInputStream = new FileInputStream(file);
					FileOutputStream fileOutputStream = new FileOutputStream(newFile);			
					fileInputStream.read(bytes);		
					
					String value = new String(bytes);
					System.out.println(value);
					
					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();
				}
			}

		} catch (Exception e) {
			System.out.println("Exception::::"+e.getMessage());
		}
	}
	public void render(RenderRequest request, RenderResponse response) throws PortletException, IOException
	{

		doView(request,response);
	}

	public void doView(RenderRequest request, RenderResponse response)throws IOException 
	{
		String path=viewJSP;
		PortletRequestDispatcher portletRequestDispatcher = getPortletContext().getRequestDispatcher(path);
		if (portletRequestDispatcher == null) {
			_log.error(viewJSP + " is not a valid include");
		}
		else{

			try{
				portletRequestDispatcher.include(request, response);
			}
			catch(Exception e){				
				_log.error("Error Occured:"+e);
			}
		}
	}
	private static Log _log = LogFactoryUtil.getLog(UploadPortlet2.class);

}

This will save in the upload directory (html/uploads) make sure to create this directory in your portlet.
BTW. If you're creative with ../../.. you can store it outside of the portlet, or dynamically create folders ;-)

View.jsp

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>
<%@ page language="java" contentType="text/html; charset=Windows-1256" pageEncoding="Windows-1256"%>
<portlet:defineobjects />
	<script type="text/javascript">
		function send()
		{
			document.UploadForm.submit();
        }
	</script>
		<h3>Upload portlet:</h3>
		
		<form name="UploadForm" action="<portlet:actionURL/>" enctype="multipart/form-data" method="POST">
		  <input type="file" name="fileName" size="50"><br>
		  <input type="Submit" value="Upload File" onClick="send()">
		</form>

Good luck!

[12年前 に Nhat Le によって更新されました。]

Suraj Bihari:

Hi Rad,

To upload a file and store it on the server see the following snippet:

UploadPortlet.java

public class UploadPortlet extends GenericPortlet{

	protected String viewJSP;
	protected String process;
	protected Vector<!--?--> v=null;
	protected String realPath=null;

	public void init() throws PortletException {

		viewJSP = getInitParameter("view-jsp");
	}

	public void processAction(ActionRequest request, ActionResponse response) throws PortletException, IOException
	{  

		realPath = getPortletContext().getRealPath("/");
		System.out.println(realPath);

		byte[] bytes = null;
		PortletContext portletContext = request.getPortletSession().getPortletContext();
		try{ 

			UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(request);
			String sourceFileName =uploadRequest.getFileName("fileName");
			File file = uploadRequest.getFile("fileName");
			try {
				bytes = FileUtil.getBytes(file);
			} catch (IOException e2) {			
				e2.printStackTrace();
			}
			File newFile=null;

			if ((bytes != null) &amp;&amp; (bytes.length &gt; 0)) {

				try {

					System.out.println(sourceFileName);

					newFile = new File(realPath+"html/uploads/"+sourceFileName);
					FileInputStream fileInputStream = new FileInputStream(file);
					FileOutputStream fileOutputStream = new FileOutputStream(newFile);			
					fileInputStream.read(bytes);		
					
					String value = new String(bytes);
					System.out.println(value);
					
					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();
				}
			}

		} catch (Exception e) {
			System.out.println("Exception::::"+e.getMessage());
		}
	}
	public void render(RenderRequest request, RenderResponse response) throws PortletException, IOException
	{

		doView(request,response);
	}

	public void doView(RenderRequest request, RenderResponse response)throws IOException 
	{
		String path=viewJSP;
		PortletRequestDispatcher portletRequestDispatcher = getPortletContext().getRequestDispatcher(path);
		if (portletRequestDispatcher == null) {
			_log.error(viewJSP + " is not a valid include");
		}
		else{

			try{
				portletRequestDispatcher.include(request, response);
			}
			catch(Exception e){				
				_log.error("Error Occured:"+e);
			}
		}
	}
	private static Log _log = LogFactoryUtil.getLog(UploadPortlet2.class);

}

This will save in the upload directory (html/uploads) make sure to create this directory in your portlet.
BTW. If you're creative with ../../.. you can store it outside of the portlet, or dynamically create folders ;-)

View.jsp

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>
<%@ page language="java" contentType="text/html; charset=Windows-1256" pageEncoding="Windows-1256"%>
<portlet:defineobjects />
	<script type="text/javascript">
		function send()
		{
			document.UploadForm.submit();
        }
	</script>
		<h3>Upload portlet:</h3>
		
		<form name="UploadForm" action="<portlet:actionURL/>" enctype="multipart/form-data" method="POST">
		  <input type="file" name="fileName" size="50"><br>
		  <input type="Submit" value="Upload File" onClick="send()">
		</form>

Good luck!

Hey

Thanks for this, but I was wondering if there is anyway you can send me the full source code of the portlet, as I am trying to use this, but i don't know how to make the view.jsp access the .java file automatically.

[11年前 に Nguyen Le によって更新されました。]

I have 2 components in view.jsp. It's file input tag(html file chooser) and textfield input tag. I want send data in 2 components to JAVA file, save file on web server and insert data received from textfileld into database. I any do 1 in 2 jobs above. Please help to do both.

[11年前 に Manish Kumar Jaiswal によって更新されました。]

Nguyen ,

I know its too late for your answer but for the ppl facing this type of problem just let me give the concept to deal with the problem . if you have normal HTML element + File Upload element in the form so when you submit the form it goes to Action and you get ActionRequest now to get the Normal HTML element you can use
actionRequest .getparameter("officephone") or ParamUtil.getString(uploadPortRequst, "officephone") and after getting all the request parameters just convert ActionRequest to UploadPortletRequest like this

UploadPortletRequest uploadPortletRequest = PortalUtil .getUploadPortletRequest(actionRequest);

and now you can get your uploaded file like this

inputStream = uploadPortletRequest.getFileAsStream("fileName");


Regards
Manish

[11年前 に Chandra Rastogi によって更新されました。]

your code is working fine but i have 2 issues
1- My uploaded files are not coming in realPath+"html/uploads/ folder.
2- Where can i view the file that i am uploading? In tomcat/data/dl there are many files with numeric name. how to find out my uploaded file?

Thanks

[8年前 に Akash Jaisawal によって更新されました。]

Any one have answer for this, why my uploaded files are coming into the /temp/myportlet folder, how can i upload it in my given path.

[12年前 に Juan Gonzalez P によって更新されました。]

Rad One:

Hello

I want to upload and store a file in local tomcat server file server (something like CKEditor).

So I've created a portlet.
These are my important files:

MyUploadFilePortlet.java:

package com.mine.portlets;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.upload.UploadPortletRequest;
import com.liferay.portal.util.PortalUtil;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.GenericPortlet;
import javax.portlet.PortletException;
import javax.portlet.PortletPreferences;
import javax.portlet.PortletRequestDispatcher;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

import java.io.File;
import java.io.IOException;

/**
 * Portlet implementation class MyUploadFilePortlet
 */
public class MyUploadFilePortlet extends GenericPortlet {
 
	protected String editJSP;
	protected String viewJSP;

	private static Log _log = LogFactoryUtil.getLog(MyUploadFilePortlet.class);

	public void init() {
		editJSP = getInitParameter("edit-jsp");
		viewJSP = getInitParameter("view-jsp");
    }

	public void processAction(
    	ActionRequest actionRequest, ActionResponse actionResponse)
		throws IOException, PortletException {

		String description = actionRequest.getParameter("description");

		UploadPortletRequest lUploadPortletRequest = PortalUtil.getUploadPortletRequest(actionRequest);

		if (lUploadPortletRequest.getFileName("file") != null && !"".equals(lUploadPortletRequest.getFileName("file"))) {
			File file = lUploadPortletRequest.getFile("file");
			String fileName = lUploadPortletRequest.getFileName("file");
			file.setLastModified(System.currentTimeMillis());
			String fileAbsPath = file.getAbsolutePath();

			PortletPreferences prefs = actionRequest.getPreferences();

			prefs.setValue("VIDEODESCRIPTION", description);
			prefs.setValue("VIDEOURL", fileAbsPath);
			prefs.store();

			System.out.println("VIDEODESCRIPTION=" + description + " path=" + fileAbsPath + " file name=" + fileName);
		}
	}
        
	public void doEdit(
		RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {

		include(editJSP, renderRequest, renderResponse);
	}
        
	public void doView(
		RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {

		PortletPreferences prefs = renderRequest.getPreferences();

		String defaultValue = "";

		String description = (String) prefs.getValue("VIDEODESCRIPTION", defaultValue);
		String fileAbsPath = (String) prefs.getValue("VIDEOURL", defaultValue);

		renderRequest.setAttribute("ATTRIBUTE_VIDEODESCRIPTION", description);
		renderRequest.setAttribute("ATTRIBUTE_VIDEOURL", fileAbsPath);

		include(viewJSP, renderRequest, renderResponse);
	}

    protected void include(
    	String path, RenderRequest renderRequest,
    	RenderResponse renderResponse)
		throws IOException, PortletException {

        PortletRequestDispatcher portletRequestDispatcher = getPortletContext().getRequestDispatcher(path);

        if (portletRequestDispatcher == null) {
            _log.error(path + " is not a valid include");
        }
        else {
            portletRequestDispatcher.include(renderRequest, renderResponse);
        }
    }
}

view.jsp

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

<portlet:defineobjects />

&lt;%
String description = (String)request.getAttribute("ATTRIBUTE_VIDEODESCRIPTION");
String fileAbsPath = (String)request.getAttribute("ATTRIBUTE_VIDEOURL");
%&gt;

<h3>View mode</h3>
<p>video description: &lt;%= description %&gt;</p>
<p>video path: &lt;%= fileAbsPath %&gt;</p>

edit.jsp

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

<portlet:defineobjects />

<h3>Edit mode</h3>
<form action="<portlet:actionURL />" method="POST" name="<portlet:namespace />fm" enctype="multipart/form-data">
	<input type="text" name="<portlet:namespace />description"><br>
	<input type="file" name="<portlet:namespace />file"><br>
	<input type="submit">
</form>

So what I want to do exactly is play a video file in view mode.

But my first step is to store uploaded file in local server file system. The form for doing that is en edit mode. So far, in view mode I can get absolute path of the file, file name etc...

How to store an uploaded file ?

I've search through the forum but answers found did not work for me. I've tried DiskFileItemFactory class but I'm missing a lot of things.

Please help.

Liferay 6.1 provides video playiing. You can use Documents & Media portlet to store your file and then use built-in player.