TCP data Transfer (V): Upload a text file and give feedback

TCP data Transfer (V): Upload a text file and give feedback

import Java.io.BufferedReader;

import Java.io.BufferedWriter;

import Java.io.FileWriter;

import java.io.IOException;

import Java.io.InputStreamReader;

import Java.io.OutputStreamWriter;

import Java.net.ServerSocket;

import Java.net.Socket;

Public class Uploadserver {

Public static void main (string[] args)throws IOException {

// Create a server-side Socket Object

ServerSocketss = Newserversocket (11111);

// Listening for client connections

Sockets = Ss.accept (); // Blocking

// flow within the encapsulated channel

BUFFEREDREADERBR = newbufferedreader (newInputStreamReader (

S.getinputstream ()));

// Encapsulating text Files

BUFFEREDWRITERBW = newbufferedwriter (newFileWriter ("Copy.java"));

Stringline = null;

while (line = Br.readline ()) =null) { // block

//if ("over". Equals (line)) {

//break;

// }

Bw.write (line);

Bw.newline ();

Bw.flush ();

}

// Give the feedback

Bufferedwriterbwserver = newbufferedwriter (newOutputStreamWriter (

S.getoutputstream ()));

Bwserver.write (" file Upload succeeded ");

Bwserver.newline ();

Bwserver.flush ();

// Freeing Resources

Bw.close ();

S.close ();

}

}

import Java.io.BufferedReader;

import Java.io.BufferedWriter;

import Java.io.FileReader;

import java.io.IOException;

import Java.io.InputStreamReader;

import Java.io.OutputStreamWriter;

import Java.net.Socket;

/*

 * The feedback was added according to our normal thinking, but the results didn't respond. Why is it ?

 * reading a text file is possible to NULL as an end message, however, there is no way to end the message in the channel.

 * so the server doesn't even know you're done. And you want the server to give you feedback. So, we waited for each other.

*

 * How to fix it? ?

* A: write one more piece of data, tell the server, read this data and I'm done, and you're done.

 *    This will solve the problem, but it's not good.

* B:socket object provides a solution

* Publicvoid Shutdownoutput ()

*/

Public class uploadclient {

Public static void main (string[] args)throws IOException {

// Create client Socket Object

Sockets = newSocket ("192.168.12.92", 11111);

// Encapsulating text Files

BUFFEREDREADERBR = newbufferedreader (newFileReader (

"Inetaddressdemo.java"));

// Package Channel Internal flow

BUFFEREDWRITERBW = newbufferedwriter (newOutputStreamWriter (

S.getoutputstream ()));

Stringline = null;

while (line = Br.readline ()) =null) { // block

Bw.write (line);

Bw.newline ();

Bw.flush ();

}

// customizing an end tag

Bw.write ("over");

Bw.newline ();

Bw.flush ();

//socket provides a termination, it notifies the server you don't have to wait, I don't have the data .

S.shutdownoutput ();

// Receive Feedback

Bufferedreaderbrclient = newbufferedreader (newInputStreamReader (

S.getinputstream ()));

Stringclient = Brclient.readline (); // Blocking

System. out. println (client);

// Freeing Resources

Br.close ();

S.close ();

}

}

TCP data Transfer (V): Upload a text file and give feedback