updateimage.jsp:

<%@page import="java.sql.*,java.io.*"%>
<%
try{
   Class.forName("com.mysql.jdbc.Driver");
   Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
    File imgfile = new File("C:/pic.jpg");
      FileInputStream fin = new FileInputStream(imgfile);
      PreparedStatement pre = con.prepareStatement("update image set images=? where id=?");
      pre.setBinaryStream(1,fin,(int)imgfile.length());
      pre.setInt(2,1);
      pre.executeUpdate();
      out.println("updated Successfully!");
      pre.close();
     }     
catch(Exception ex){
out.println("error :"+ex);
}
%>