/*
* ser_reqs.java
*
* Created on March 18, 2009, 9:47 AM
*/
package com;
import java.io.*;
import java.net.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
/**
*
* @author Administrator
* @version
*/
public class ser_reqs extends HttpServlet {
/** Initializes the servlet.
*/
String userid;
String password;
Connection dbconnection;
ResultSet resultset;
public void init() throws ServletException {
ServletConfig config = getServletConfig();
String driverClassName = config.getInitParameter("driverclassname");
String dbURL = config.getInitParameter("dburl");
String username = config.getInitParameter("username");
String dbpassword = config.getInitParameter("dbpassword");
try
{
Class.forName(driverClassName);
}
catch(ClassNotFoundException cnfe)
{
System.err.println("Error loading driver: " + cnfe);
}
try
{
dbconnection = DriverManager.getConnection(dbURL, username, dbpassword);
}
catch(SQLException sqle)
{
System.err.println("Connection error: " + sqle);
}
}
/** Destroys the servlet.
*/
public void destroy() {
}
/** Processes requests for both HTTP GET and POST methods.
* @param request servlet request
* @param response servlet response
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
// String s1=request.getParameter("t1");
// String ps=request.getParameter("p1");
try
{
Statement statement = dbconnection.createStatement();
String sqlString = "SELECT * FROM st_record WHERE name='"+request.getParameter("t1")+"'AND password='"+request.getParameter("p1")+"'";
resultset=statement.executeQuery(sqlString);
while(resultset.next())
{
userid = resultset.getString("name");
password = resultset.getString("password");
}
}
catch(SQLException sqle)
{
System.err.println("Connection error: " + sqle);
}
if(password.equals(request.getParameter("p1")) && userid.equals(request.getParameter("t1")))
{
response.sendRedirect("/ser_req/corret.html");
}
else
{
response.sendRedirect("/ser_req/incorret.html");
}
//TODO output your page here
out.println("");
out.println("");
out.println("
out.println("");
out.println("");
// out.println(s1);
// out.println(ps);
out.println("");
out.println("");
out.close();
}
/** Handles the HTTP GET method.
* @param request servlet request
* @param response servlet response
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/** Handles the HTTP POST method.
* @param request servlet request
* @param response servlet response
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/** Returns a short description of the servlet.
*/
public String getServletInfo() {
return "Short description";
}
Rest of program do urself....
GET and POST methods.POST method.Product.java
import java.rmi.*;
public interface product extends Remote{
public String getname() throws RemoteException;
}
Productimpl.java
import java.rmi.*;
import java.rmi.server.*;
public class productimpl extends UnicastRemoteObject implements product
{
public String name1;
productimpl(String name) throws RemoteException
{
name1=name;
}
public String getname()
{
return name1;
}
}
Productclient.java
import java.rmi.*;
import java.rmi.registry.*;
public class productclient
{
public static void main(String s[])
{
try
{
product p=(product)Naming.lookup("rmi://127.0.0.1:1099/java");
System.out.println("productname="+p.getname());
}
catch(Exception e)
{
System.out.println(e);
}
}
}
Productserver.java
import java.rmi.*;
import java.rmi.registry.*;
public class productserver
{
public static void main(String s[])
{
try{
LocateRegistry.getRegistry(1099);
productimpl p1 =new productimpl("java");
Naming.bind("java",p1);
}
catch(java.lang.Exception e)
{System.out.println(e);
}
}
}
class ab
{
public static void main(String args[]) throws UnknownHostException
{
InetAddress ad = InetAddress.getLocalHost();
System.out.println(ad);
}
}
import java.io.*;
class charprint
{
public static void main(String args[])
{
char ch,ch1='y';
BufferedReader br;
try
{
do
{
System.out.println("Enter a character... ");
br=new BufferedReader(new InputStreamReader(System.in));
ch=(char)br.read();
System.out.println("Character entered... "+ch);
System.out.println("Continue?... (y/n)... ");
br=new BufferedReader(new InputStreamReader(System.in));
ch1=(char)br.read();
}while(ch1=='y' || ch1=='Y');
}
catch(IOException e)
{}
}
}
