Servlets Java

package com.ack.web.servlet;
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;
public class ServerInformation extends HttpServlet {
public void doGet( HttpServletRequest req, HttpServletResponse res )
throws ServletException, IOException {
res.setContentType( "text/html" );
PrintWriter pw = res.getWriter();
pw.println( "

Server Information

" );
pw.println( "


" );
pw.println( "
Server Information: " + getServletContext().getServerInfo() );
pw.println( "
Servlet API Version: " +
getServletContext().getMajorVersion() + "." +
getServletContext().getMinorVersion() );
pw.println( "
Server Name: " + req.getServerName() );
pw.println( "
Server Port: " + req.getServerPort() );
}
}