Tuesday 2 August 2016

UPLOAD VIDEO USING SERVLET&JSP

Step 1: To create database and table

Step 2: Create home page

home.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Video Upload to Database Demo</title>
</head>
<body>
    <center>
        <h1>Video Upload to Database Demo</h1>
        <form method="post" action="uploadServlet" enctype="multipart/form-data">
            <table border="0">
             
                <tr>
                    <td>Upload Video: </td>
                    <td><input type="file" name="video" size="50"/></td>
                </tr>
                <tr>
                    <td colspan="2">
                        <input type="submit" value="Save">
                    </td>
                </tr>
            </table>
        </form>
    </center>
</body>
</html>


uploadServlet.java


import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Part;

@WebServlet("/uploadServlet")
@MultipartConfig(maxFileSize = 1024*1024*14)    // upload file's size up to 16MB
public class uploadServlet extends HttpServlet {
   
    // database connection settings
    private String dbURL = "jdbc:mysql://localhost:3306/db name";
    private String dbUser = "username";
    private String dbPass = "password";
   
    protected void doPost(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
     
        InputStream inputStream = null; // input stream of the upload file
       
        // obtains the upload file part in this multipart request
        Part filePart = request.getPart("video");
        if (filePart != null) {
            // prints out some information for debugging
            System.out.println(filePart.getName());
            System.out.println(filePart.getSize());
            System.out.println(filePart.getContentType());
           
            // obtains input stream of the upload file
            inputStream = filePart.getInputStream();
        }
       
        Connection conn = null; // connection to the database
        String message = null;  // message will be sent back to client
       
        try {
            // connects to the database
            DriverManager.registerDriver(new com.mysql.jdbc.Driver());
            conn = DriverManager.getConnection(dbURL, dbUser, dbPass);

            // constructs SQL statement
            String sql = "INSERT INTO upload_image values (?)";
            PreparedStatement statement = conn.prepareStatement(sql);
         
           
            if (inputStream != null) {
                // fetches input stream of the upload file for the blob column
                statement.setBlob(1, inputStream);
            }

            // sends the statement to the database server
            int row = statement.executeUpdate();
            if (row > 0) {
                message = "File uploaded and saved into database";
            }
        } catch (SQLException ex) {
            message = "ERROR: " + ex.getMessage();
            ex.printStackTrace();
        } finally {
            if (conn != null) {
                // closes the database connection
                try {
                    conn.close();
                } catch (SQLException ex) {
                    ex.printStackTrace();
                }
            }
         
        }
    }
}


Step 3: Set maximum Allowed packet in mydql server.

            To Execute below query

       SET GLOBAL max_allowed_packet = 1024 * 1024 * 14



         

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