Transferring Over Network

[qwerty]

Hello every one
This is my first participation ,Im new in java , I have question , How I can send a file over network in a client- server paradigm , server send and client receive . the following is trying code

//The client code Client.java:


import java.net.*;
import java.io.*;

public class Client {

ObjectInputStream Sinput;
ObjectOutputStream Soutput;
Socket socket;


Client(int port) {


try {
socket = new Socket("localhost", port);
FileInputStream test=new FileInputStream("file name");

Soutput.writeObject(test);
Soutput.flush();
}
catch(Exception e) {
System.out.println("Error connectiong to server:" + e);
return;
}




try{
Sinput.close();
Soutput.close();
}
catch(Exception e) {}
}

public static void main(String[] arg) {
new Client(1500);
}
}


//The server code Server.java:

import java.io.*;
import java.net.*;

/
public class Server {


private ServerSocket serverSocket;

Server(int port) {


try
{
serverSocket = new ServerSocket(port);
System.out.println("Server waiting for client on port " + serverSocket.getLocalPort());

while(true)
{
Socket socket = serverSocket.accept();
System.out.println("New client asked for a connection");
TcpThread t = new TcpThread(socket);
System.out.println("Starting a thread for a new Client");
t.start();
}
}
catch (IOException e) {
System.out.println("Exception on new ServerSocket: " + e);
}
}


public static void main(String[] arg) {

new Server(1500);
}


class TcpThread extends Thread implements Serializable {

Socket socket;
ObjectInputStream Sinput;
ObjectOutputStream Soutput;

TcpThread(Socket socket) {
this.socket = socket;
}
public void run() {

System.out.println("Thread trying to create Object Input/Output Streams");
try
{

Soutput = new ObjectOutputStream(socket.getOutputStream());
Soutput.flush();

}
catch (IOException e) {
System.out.println("Exception creating new Input/output Streams: " + e);
return;
}
System.out.println("Thread waiting for a String from the Client");

try {
byte[] msgArray=null;

File file = (File)Sinput.readObject();
FileInputStream fisSrc=new FileInputStream(file);
FileOutputStream fosDes=new FileOutputStream("ClientRceivedTempFile");
int n;
while ((n = fisSrc.available()) > 0) {
byte[] b = new byte[n];
int result = fisSrc.read(b);
if (result == -1) break;
fosDes.write( b );}
fisSrc.close();
fosDes.close();


}
catch (IOException e) {
System.out.println("Exception reading/writing Streams: " + e);
return;
}

catch (ClassNotFoundException o) {
}
finally {
try {
Soutput.close();
Sinput.close();
}
catch (Exception e) {
}
}
}
}
}

Im lost:o help me please :confused:Im appreciate your help :p

[CaptainMorgan]

Please note that the Tutorials section is currently off limits for questions specifically unrelated to the tutorial. I've taken the liberty of creating a thread in the proper place so your issue can be addressed.

[skaspersen]

You cannot send the FileInputStream object over the network you need to send the data that is in the file.

Look at it this way

Sending Side:
1)Open File for reading
2)Read a chunk of data from file
3)Write chunk of data to port
4)Repeat from 2 until whole file has been sent
5)Close file

Receiving Side:
1)Open file for writing
2)Read chunk of data from port
3)Write chunk of data to file
4)Repeat from 2 until all data has been received
5)Close file