Use this stuff inside your jsp page for store file inside database, for follwing same concept for retrive data

<%@page import="java.sql.Connection"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.io.File"%>
<%@page import="java.io.FileInputStream"%>
<%@page import="java.sql.PreparedStatement"%>
<%try{
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/quoting";, "root", "");
File file = new File("C://skill.txt";);
FileInputStream fin = new FileInputStream(file);
PreparedStatement pre = conn.prepareStatement("insert into MyTable values(?)");
pre.setBinaryStream(1,fin,(int)file.length());
pre.executeUpdate();
System.out.println("Inserting Successfully!");
pre.close();
conn.close();
}
catch (Exception e){
System.out.println(e.getMessage());
}
%>

Thanks
Rajanikant