Transferring a file from one machine to another

You can easily do this:

Run the serverSocket in the machine in which the file resides

Run the client-Socket in the machine in which you want to download the file -you got it?!!!

Do you want an example program?I have!!!

See the socket tutorial:

http://java.sun.com/docs/books/tutorial/networking/sockets/index.html

pravintha at 2007-7-13 22:25:17 >

Now i am busyexam.....

so i just post one example program which i haveplz go through it

It works perfectly-it may display ...... on the screen while transferring ....

//-FilefromClient.java

/*

This client transfers a file to server--u study this and chage it to receive file from server

use the fin-input stream to get file stream from server

Here 178.1.5.88 is the ip address of the machine in network in which the server socket is running

Instead of z:/usefulljavalink.txt-specify the file with the complete path that is to be transferred to the server */

import java.net.*;

import java.io.*;

import java.io.File;

public class FilefromClient{

public static void main(String a[]){

int c;

Socket cltskt=null;

PrintWriter writeskt=null;

File f = new File("z:/usefulljavalink.txt");

try{

FileInputStream fin = new FileInputStream(f.getAbsolutePath());

try{

System.out.println("preparing the client socket");

cltskt=new Socket("178.1.5.88",4001);

System.out.println("Done....");

System.out.println(cltskt);

}

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

try {

writeskt=new PrintWriter(cltskt.getOutputStream(),true);

BufferedReader readskt = new BufferedReader(new InputStreamReader(cltskt.getInputStream()));

System.out.println("File Transferring....");

while((c = fin.read()) != -1){

writeskt.println(c);//to write to the socket

System.out.print(Integer.parseInt(readskt.readLine()));

}

//byte buf[] = new byte[fin.available()];

//writeskt.println(buf);

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

try{

fin.close();

}catch(IOException e) {}

}catch(FileNotFoundException e){ }

}

}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////

//--FiletoServer.java-

/* In this program the server receives a file fom client and store it as asin.jpg */

import java.net.*;

import java.io.*;

import java.io.File;

public class FiletoServer

{

public static void main(String a[])

{

ServerSocket serskt=null;

PrintWriter writeskt=null;

int rep;

try{

FileOutputStream fout = new FileOutputStream("asin.jpg");

try{//1.preparing the socket

System.out.println("preparing the serversocket");

serskt=new ServerSocket(4001); /*Port No: 4001*/

//if there is no exception the socket is ready

System.out.println("Done....");

}

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

try{

Socket listen=serskt.accept(); //2.listining to the socket

System.out.println("Listining...");

writeskt=new PrintWriter(listen.getOutputStream(),true);

BufferedReader readskt = new BufferedReader(new InputStreamReader(listen.getInputStream()));

System.out.println("File Recieving...");

try{

while((rep = Integer.parseInt(readskt.readLine())) != -1){

System.out.print(rep);

fout.write(rep);

writeskt.println(rep);

}

fout.close();

//fout.write(readskt.read());

} catch(IOException e){}

writeskt.close();

readskt.close();

}catch(Exception e) {System.out.println(e); e.printStackTrace();}

}catch(FileNotFoundException e){}

}

}

If its not enough/any problem with it plz post -U R WELCOME

pravintha at 2007-7-13 22:25:17 >

> Hi ,

>

> i have a problem with port , i dont know what

> exact port i have to provide .

>

>Any one help me for this

> hanks

> Masthan Shaik

You can provide what ever port you wish between 1025 and 65536.

All you have to do is to bind the server to your chosen port and then

connect to that port with the client.

You can ofcourse use ports 1...1024 if you know what you're doing.

kari-matti

kari-mattia at 2007-7-13 22:25:18 >

You'll have to start the server before you start the client.

The server creates the socket that the client connects to.

And make sure you have the ip address in the client code

correct, and that the port number on both client and server

code are the same.

kari-matti

kari-mattia at 2007-7-13 22:25:18 >