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Aayshi Mehrotra
import javax.servlet.http.*;
import javax.servlet.*;
import java.io.*;
import java.sql.*;
public class Login extends HttpServlet
{
public void doPost(HttpServletRequest req,HttpServletResponse res) throws ServletException , IOException
{
res.setContentType("text/html");
PrintWriter out=res.getWriter();
String name=req.getParameter("username:");
String pass=req.getParameter("password");
//boolean t=req.getValue("checkbox");
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection c =DriverManager.getConnection("Jdbc:Odbc:mydsn");
Statement s =c.createStatement();
ResultSet rs=s.executeQuery("select * from emp ");
if(rs.next())
{
if(name!=rs.getString(1)||pass!=rs.getString(2))
{
out.println("<html><body>");
int x =s.executeUpdate("insert in to emp values("+name+"),("+pass+") ");
out.println("u hv registered");
out.println("<a href=welcome.htm>next</a>");
out.println("</body></html>");
}
if(name==rs.getString(1)&&pass==rs.getString(2))
{out.println("<html><body>");
out.println("<a href=wecome.htm>login</a>");
out.println("</body></html>");}
/*if(t==true)
{
Cookie c1 =new Cookie("name","ducat");
Cookie c2 =new Cookie("add","noida");
res.addCookie(c1);
res.addCookie(c2);
c1.setMaxAge(30*60);
c2.setMaxAge(30*60);
}
*/
}
}
catch(Exception e){}
}}
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