Testing Cookies

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posted 13 years ago

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Hi
I am trying to run a simple program to test cookies .
I have a form.html in which takes user input ( via CookieTest.java) and passes it on to a jsp (cookieresult.jsp ) which inturn passes on to another servlet (CheckCookie.java) .

The problem is it's not giving me the value of the parameters which were inserted in the form .html , even though it works fine till the jsp. I just get null values in the last servlet.

I am not very clear with concept to know if I am doing it right , or how it should be done to get the output.

Here's the code.

Form.html

CookieTest.java

cookieresult.jsp

And finally CheckCookie.java

import javax.servlet.*;
import javax.servlet.http.*;

import java.io.*;

public class CheckCookie extends HttpServlet
{

public void doGet(HttpServletRequest request, HttpServletResponse

response ) throws IOException , ServletException

{

response.setContentType("text/html");

PrintWriter out= response.getWriter();

Cookie[] cookies= request.getCookies();

if(cookies !=null)
	{
		for(int i=0;i<cookies.length;i++)
		{
			Cookie cookie=cookies[i];
			out.println(cookie.getName());
 out.println(cookie.getValue());
			out.println("> ");

if(cookie.getName().equals("username"))

{
			String username=cookie.getValue();
			out.println("Username" + username +" ");
			
			out.println("Hello " + username + " ,Howdy do

?");
			out.println("Maximum age in Seconds is " +

cookie.getMaxAge()+ " ");
	
			out.println("Path is " + cookie.getPath() +

" ");

out.println("Domain is " + cookie.getDomain()

+ " ");

out.println("Version is " + cookie.getVersion

() + " ");

}
			else
			{
		 	out.println("No cookie with that name");
			}
		}

}

}
}

Thankyou.

The future belongs to those who believe in the beauty of their dreams.Dream BIG!

Ram Narayan.M

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Posts: 247

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posted 13 years ago

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Ensure if CheckCookie and CookieTest are under same domain... Suppose if you are trying locally and using "localhost", both servlet URL should be under domain "localhost" since Cookie is based on
domain.

SCJP 6 [SCJP - Old is Gold]