JAVA EE: Servlets : Upload File

Saturday 7 June 2014

Servlets : Upload File

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Servlets : Upload File

FileuploadDemo Project Dir Structure

Servlets : Upload File

UploadServlet.java

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.oreilly.servlet.MultipartRequest;

public class UploadServlet extends HttpServlet
{
    private static final long serialVersionUID = 1L;

    public void init() throws ServletException
    {
        System.out.println("-----------------------------------------");
        System.out.println(" Init method is called in "
                + this.getClass().getName());
        System.out.println("--------------------------------------");
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();

        MultipartRequest multipartRequest = new MultipartRequest(request,
                "D:\\Tomcat");

        out.print("successfully uploaded");

    }

    public void destroy()
    {
        System.out.println("-----------------------------------------");
        System.out.println(" destroy method is called in "
                + this.getClass().getName());
        System.out.println("-----------------------------------------");
    }

}

web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                      http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    version="3.0" metadata-complete="true">

    <display-name>FileuploadDemo</display-name>
    <description>
        This is a simple web application with a source code organization
        based on the recommendations of the Application Developer's Guide.
    </description>

    <servlet>
        <servlet-name>UploadServlet</servlet-name>
        <servlet-class>UploadServlet</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>UploadServlet</servlet-name>
        <url-pattern>/uploadfile</url-pattern>
    </servlet-mapping>

</web-app>

index.html

<html>
<body>
    <form action="uploadfile" method="post" enctype="multipart/form-data">
        
        Select File 1:<input type="file" name="fname1" /><br /> 
        Select File 2:<input type="file" name="fname2" /><br /> 
        
        <input type="submit" value="upload" />
    </form>
</body>
</html>

Environment Used

JDK version :1.7.0_51
Tomcat version : 7.0.50

To Download FileuploadDemoApp Project Click the below link

https://sites.google.com/site/javaee4321/servlets/FileuploadDemoApp.zip?attredirects=0&d=1

See also:

Servlets Tutorial

All Design Patterns Links

Saturday 7 June 2014

Servlets : Upload File

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