How could i send multiple http requests from my java program using sockets. actually i have tried as:

import java.net.*;
import java.io.*;
class htmlPageFetch{
    public static void main(String[] args){
        try{
            Socket s = new Socket("127.0.0.1", 80);
            DataInputStream dIn = new DataInputStream(s.getInputStream());
            PrintWriter dOut = new PrintWriter(s.getOutputStream(), true);
            dOut.println("GET /mytesting/justCheck.html HTTP/1.1\r\nHost:localhost\r\n\r\n");
            boolean more_data = true;
            String str;
            int i = 0;
            while(more_data){
                str = dIn.readLine();
                if(str==null){
                    //Now server has stopped sending data               //So now write again the inputs
                    dOut.println("GET /mytesting/justCheck1.html HTTP/1.1\r\nHost:localhost\r\n\r\n");                          


                    continue;
                }
                System.out.println(str);
            }   
        }catch(IOException e){

        }
    }
}

But when I send the request again it was not processed? Thank in advance.