Electro 1G: Upload a file Using JSP

This demonstration will guide you, how to upload a file into folder (you can define the path) using JSP.

Pre-Request

Application server - I am using Wso2 Application Server. Since it is very user friendly to configure and mange my application using cool user interfaces.

Further Readings,
[1]http://wso2.org/library/articles/2012/10/getting-full-features-apache-tomcat-supported-wso2-application-server
[2] http://docs.wso2.org/wiki/display/AS510/Installation+Guide

Maven - As build tool i am using.

Further Readings,
[1] http://vanjikumaran.blogspot.com/2013/04/installing-maven-and-ant-in-ubuntu.html

let see the codes

	<%--
	Created by IntelliJ IDEA.
	User: vanji
	Date: 6/22/13
	Time: 2:18 PM
	To change this template use File \| Settings \| File Templates.
	--%>
	<%@ page contentType="text/html;charset=UTF-8" language="java" %>
	<%@ page import="java.io.,java.util." %>
	<%@ page import="org.apache.commons.fileupload.*" %>
	<%@ page import="org.apache.commons.fileupload.disk.*" %>
	<%@ page import="org.apache.commons.fileupload.servlet.*" %>
	<%
	int MAX_MEMORY_SIZE = 1024 * 1024 * 2;
	final int MAX_REQUEST_SIZE = 1024 * 1024;

	DiskFileItemFactory factory = new DiskFileItemFactory();

	// Sets the size threshold beyond which files are written directly to disk.
	factory.setSizeThreshold(MAX_MEMORY_SIZE);

	// Sets the directory used to temporarily store files that are larger
	// than the configured size threshold. We use temporary directory for java
	factory.setRepository(new File(System.getProperty("java.io.tmpdir")));

	// constructs the folder where uploaded file will be stored
	String uploadFolder = "/home/vanjikumaran/Area51/IN";
	// Create a new file upload handler
	ServletFileUpload upload = new ServletFileUpload(factory);

	// Set overall request size constraint
	upload.setSizeMax(MAX_REQUEST_SIZE);

	try {
	// Parse the request
	List items = upload.parseRequest(request);
	for (Object item1 : items) {
	FileItem item = (FileItem) item1;

	if (!item.isFormField()) {
	String fileName = new File(item.getName()).getName();
	String filePath = uploadFolder + File.separator + fileName;
	File uploadedFile = new File(filePath);

	// saves the file to upload directory
	item.write(uploadedFile);
	}
	}
	response.sendRedirect("success.jsp");
	} catch (Exception e) {
	response.sendRedirect("errorPage.jsp");
	}
	%>
	<html>
	<head>
	<title>File Processor</title>
	</head>
	<body>
	system currently processing the file
	</body>
	</html>

view raw batch_Order_Process.jsp hosted with ❤ by GitHub

	<%--
	Created by IntelliJ IDEA.
	User: vanji
	Date: 6/22/13
	Time: 2:07 PM
	This example is demonstrate how to upload a file into given location of the server
	--%>
	<html lang="en">
	<head>
	<title>File Uploading Form</title>
	</head>

	<body>
	<div>
	<h1>Batch Order Upload</h1>
	<form action="batch_Order_Process.jsp" method="post" enctype="multipart/form-data">
	<ul>
	<h3>File Upload:</h3>
	Select a file to upload: <br />
	<input type="file" name="file" size="50" />
	<br />
	<input type="submit" value="Upload File" />
	</ul>
	</form>
	</div>
	</body>
	</html>

view raw index.jsp hosted with ❤ by GitHub

Electro 1G

Saturday, November 2, 2013

Upload a file Using JSP

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