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  newbie Server question  (Read 474 times)
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Offline ken1992

Junior Newbie





« Posted 2012-11-12 10:47:28 »

Hi,

This post might not belong in this forum, but I posted it because responses in this forum are very quick. Sad
I am so desperate and I need to fix it ASAP.

Thanks in advance Smiley

I am currently writing a server which will respond to three methods GET, HEAD, POST methods.
what I am trying to do is to read all the request headers generated from a httpClient request
(i,e. POST /HTTP1.0, Content-length:111, Host: localhost:4444, and so on)
and put all of them together into a string named as request and then pass the request string to another method to process the request.

My problem is stated below.
when I print out request is always null...
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   is = incoming.getInputStream();
         os = incoming.getOutputStream();
         in = new Scanner(is);
         out = new DataOutputStream(os);


         String request = "";
         while (in.hasNextLine()){
         String input = in.nextLine();
         request = request + input;
         }
         System.out.println(request);



The following is my full code...

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 import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;

public class HttpServer {
   static int PORT = 4444;

   @SuppressWarnings("resource")
   public static void main(String[] args) {
      try {
         ServerSocket s = new ServerSocket(PORT);
         System.out.println("Server is running!!");
         System.out.println(InetAddress.getLocalHost());
         while (true) {
            Socket incoming = s.accept();
            System.out
                  .println(incoming.getRemoteSocketAddress().toString());
            Threads t = new Threads(incoming);
            t.start();
         }
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

class Threads extends Thread {
   private Socket incoming;
   private InputStream is = null;
   private OutputStream os = null;
   private Scanner in = null;
   private DataOutputStream out = null;

   public Threads(Socket i) {
      incoming = i;
   }

   public void run() {
      try {
         is = incoming.getInputStream();
         os = incoming.getOutputStream();
         in = new Scanner(is);
         out = new DataOutputStream(os);


         String request = "";
         while (in.hasNextLine()){
         String input = in.nextLine();
         request = request + input;
         }
         System.out.println(request);

   
         byte[] requestB = request.getBytes();

         RequestHandler rh = new RequestHandler();
         out.write(rh.processRequest(requestB)) ;

         is.close();
         os.close();
         in.close();
         out.close();

      } catch (Exception e) {
         e.printStackTrace();
      }

   }
}
Offline ken1992

Junior Newbie





« Reply #1 - Posted 2012-11-12 11:54:10 »

Hi,

This post might not belong in this forum, but I posted it because responses in this forum are very quick. Sad
I am so desperate and I need to fix it ASAP.

Thanks in advance Smiley

I am currently writing a server which will respond to three methods GET, HEAD, POST methods.
what I am trying to do is to read all the request headers generated from a httpClient request
(i,e. POST /HTTP1.0, Content-length:111, Host: localhost:4444, and so on)
and put all of them together into a string named as request and then pass the request string to another method to process the request.

My problem is stated below.
when I print out request is always null...
1  
2  
3  
4  
5  
6  
7  
8  
9  
10  
11  
12  
   is = incoming.getInputStream();
         os = incoming.getOutputStream();
         in = new Scanner(is);
         out = new DataOutputStream(os);


         String request = "";
         while (in.hasNextLine()){
         String input = in.nextLine();
         request = request + input;
         }
         System.out.println(request);



The following is my full code...

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 import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;

public class HttpServer {
   static int PORT = 4444;

   @SuppressWarnings("resource")
   public static void main(String[] args) {
      try {
         ServerSocket s = new ServerSocket(PORT);
         System.out.println("Server is running!!");
         System.out.println(InetAddress.getLocalHost());
         while (true) {
            Socket incoming = s.accept();
            System.out
                  .println(incoming.getRemoteSocketAddress().toString());
            Threads t = new Threads(incoming);
            t.start();
         }
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

class Threads extends Thread {
   private Socket incoming;
   private InputStream is = null;
   private OutputStream os = null;
   private Scanner in = null;
   private DataOutputStream out = null;

   public Threads(Socket i) {
      incoming = i;
   }

   public void run() {
      try {
         is = incoming.getInputStream();
         os = incoming.getOutputStream();
         in = new Scanner(is);
         out = new DataOutputStream(os);


         String request = "";
         while (in.hasNextLine()){
         String input = in.nextLine();
         request = request + input;
         }
         System.out.println(request);

   
         byte[] requestB = request.getBytes();

         RequestHandler rh = new RequestHandler();
         out.write(rh.processRequest(requestB)) ;

         is.close();
         os.close();
         in.close();
         out.close();

      } catch (Exception e) {
         e.printStackTrace();
      }

   }
}


SOLVED IT Smiley
Offline masteryoom

JGO Coder


Medals: 5
Projects: 2


If you look closely, you might see it turning...


« Reply #2 - Posted 2012-11-13 05:47:16 »

Next time put your code in pastebinCheesy

Smiley
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