Java file upload to remote pc

[r035198x]

yes i get the same nullpointer exception error on the same line

if i run the program it displays

source :
destination:
when i entered d:/source.txt for source and

http://ws111/share/destination.txt for destionation and
click submit button. it fires the confirmation dialog box as success
but after that it throws that null pointer exception

Can you run this one and then post the line that is reported to have the exception

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
 JTextField sourcefield,destinationfield;
 JLabel sourceLabel,destinationLabel;
 JButton submit;
 FileInputStream fin;
 FileOutputStream fout;
 URL destinationurl;
 URLConnection connection;
 OutputStreamWriter out;
 BufferedReader in;
 remotefileupload() {
 //WindowUtilities.setNativeLookAndFeel();
   JFrame f = new JFrame("This is a test");
   f.setSize(300,300);
   Container content = f.getContentPane();
   content.setBackground(Color.white);
   content.setLayout(null);
   sourceLabel=new JLabel("Source Path");
   sourceLabel.setBounds(10,20,70,20);
  sourcefield=new JTextField(30);
  sourcefield.setBounds(90,20,90,20);
  destinationLabel=new JLabel("Destination");
   destinationLabel.setBounds(10,50,70,20);
  destinationfield=new JTextField(30);
  destinationfield.setBounds(90,50,90,20);
   submit=new JButton("Submit");
  submit.setBounds(40,80,90,30);
  content.add(sourceLabel);
   content.add(sourcefield);
   content.add(destinationLabel);
   content.add(destinationfield);
  content.add(submit);
  submit.addActionListener(this);
  f.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
   System.exit(0);
   }});
   f.setVisible(true);
   //f.addWindowListener(new ExitListener());
 }
 public void actionPerformed(ActionEvent ae) {
  int i;
  String str=ae.getActionCommand();
  if(str.equals("Submit")) {
   try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	//fout =new FileOutputStream(destinationfield.getText());
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	do {
	 i = fin.read();
	 if(i != -1)
	  out.write(i);
	}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
   }
   catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
   }
   catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
   }
   catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
   }
   catch(IOException e) {
	e.printStackTrace();
   }
  }
 }
 public static void main(String[] args)
 {
   new remotefileupload();

 }
}

[crazystone82]

hi,

i execute the code it not throws any error but the file is not upload at the destination pc.please review the code for further modifications

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
 JTextField sourcefield,destinationfield;
 JLabel sourceLabel,destinationLabel;
 JButton submit;
 FileInputStream fin;
 FileOutputStream fout;
 URL destinationurl;
 URLConnection connection;
 OutputStreamWriter out;
 BufferedReader in;
 remotefileupload() {
 //WindowUtilities.setNativeLookAndFeel();
   JFrame f = new JFrame("This is a test");
   f.setSize(300,300);
   Container content = f.getContentPane();
   content.setBackground(Color.white);
   content.setLayout(null);
   sourceLabel=new JLabel("Source Path");
   sourceLabel.setBounds(10,20,70,20);
  sourcefield=new JTextField(30);
  sourcefield.setBounds(90,20,90,20);
  destinationLabel=new JLabel("Destination");
   destinationLabel.setBounds(10,50,70,20);
  destinationfield=new JTextField(30);
  destinationfield.setBounds(90,50,90,20);
   submit=new JButton("Submit");
  submit.setBounds(40,80,90,30);
  content.add(sourceLabel);
   content.add(sourcefield);
   content.add(destinationLabel);
   content.add(destinationfield);
  content.add(submit);
  submit.addActionListener(this);
  f.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
   System.exit(0);
   }});
   f.setVisible(true);
   //f.addWindowListener(new ExitListener());
 }
 public void actionPerformed(ActionEvent ae) {
  int i;
  String str=ae.getActionCommand();
  if(str.equals("Submit")) {
   try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	//fout =new FileOutputStream(destinationfield.getText());
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	do {
	 i = fin.read();
	 if(i != -1)
	  out.write(i);
	}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
   }
   catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
   }
   catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
   }
   catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
   }
   catch(IOException e) {
	e.printStackTrace();
   }
  }
 }
 public static void main(String[] args)
 {
   new remotefileupload();

 }
}

[r035198x]

hi,

i execute the code it not throws any error but the file is not upload at the destination pc.please review the code for further modifications

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
JTextField sourcefield,destinationfield;
JLabel sourceLabel,destinationLabel;
JButton submit;
FileInputStream fin;
FileOutputStream fout;
URL destinationurl;
URLConnection connection;
OutputStreamWriter out;
BufferedReader in;
remotefileupload() {
//WindowUtilities.setNativeLookAndFeel();
JFrame f = new JFrame("This is a test");
f.setSize(300,300);
Container content = f.getContentPane();
content.setBackground(Color.white);
content.setLayout(null);
sourceLabel=new JLabel("Source Path");
sourceLabel.setBounds(10,20,70,20);
sourcefield=new JTextField(30);
sourcefield.setBounds(90,20,90,20);
destinationLabel=new JLabel("Destination");
destinationLabel.setBounds(10,50,70,20);
destinationfield=new JTextField(30);
destinationfield.setBounds(90,50,90,20);
submit=new JButton("Submit");
submit.setBounds(40,80,90,30);
content.add(sourceLabel);
content.add(sourcefield);
content.add(destinationLabel);
content.add(destinationfield);
content.add(submit);
submit.addActionListener(this);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}});
f.setVisible(true);
//f.addWindowListener(new ExitListener());
}
public void actionPerformed(ActionEvent ae) {
int i;
String str=ae.getActionCommand();
if(str.equals("Submit")) {
try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	//fout =new FileOutputStream(destinationfield.getText());
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	do {
	 i = fin.read();
	 if(i != -1)
	 out.write(i);
	}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
}
catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
}
catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
}
catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
}
catch(IOException e) {
	e.printStackTrace();
}
}
}
public static void main(String[] args)
{
new remotefileupload();
 
}
}

Why are not you making use of the buffered reader in your code even if you declared it?

First test to see if you are reading anything at all by

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
 JTextField sourcefield,destinationfield;
 JLabel sourceLabel,destinationLabel;
 JButton submit;
 FileInputStream fin;
 FileOutputStream fout;
 URL destinationurl;
 URLConnection connection;
 OutputStreamWriter out;
 BufferedReader in;
 remotefileupload() {
 //WindowUtilities.setNativeLookAndFeel();
   JFrame f = new JFrame("This is a test");
   f.setSize(300,300);
   Container content = f.getContentPane();
   content.setBackground(Color.white);
   content.setLayout(null);
   sourceLabel=new JLabel("Source Path");
   sourceLabel.setBounds(10,20,70,20);
  sourcefield=new JTextField(30);
  sourcefield.setBounds(90,20,90,20);
  destinationLabel=new JLabel("Destination");
   destinationLabel.setBounds(10,50,70,20);
  destinationfield=new JTextField(30);
  destinationfield.setBounds(90,50,90,20);
   submit=new JButton("Submit");
  submit.setBounds(40,80,90,30);
  content.add(sourceLabel);
   content.add(sourcefield);
   content.add(destinationLabel);
   content.add(destinationfield);
  content.add(submit);
  submit.addActionListener(this);
  f.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
   System.exit(0);
   }});
   f.setVisible(true);
   //f.addWindowListener(new ExitListener());
 }
 public void actionPerformed(ActionEvent ae) {
  int i;
  String str=ae.getActionCommand();
  if(str.equals("Submit")) {
   try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	//fout =new FileOutputStream(destinationfield.getText());
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	String line;
	while ((line = in.readLine()) != null) {
	 System.out.println(line);//Just read the lines and print them.
	}
	//do {
	// i = fin.read();
	// if(i != -1)
	//  out.write(i);
	//}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
   }
   catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
   }
   catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
   }
   catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
   }
   catch(IOException e) {
	e.printStackTrace();
   }
  }
 }
 public static void main(String[] args)
 {
   new remotefileupload();

 }
}

[crazystone82]

i tested that program it reads the content of file and displays it on the system console of the source machine

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
 JTextField sourcefield,destinationfield;
 JLabel sourceLabel,destinationLabel;
 JButton submit;
 FileInputStream fin;
 FileOutputStream fout;
 URL destinationurl;
 URLConnection connection;
 OutputStreamWriter out;
 BufferedReader in;
 remotefileupload() {
 //WindowUtilities.setNativeLookAndFeel();
   JFrame f = new JFrame("This is a test");
   f.setSize(300,300);
   Container content = f.getContentPane();
   content.setBackground(Color.white);
   content.setLayout(null);
   sourceLabel=new JLabel("Source Path");
   sourceLabel.setBounds(10,20,70,20);
  sourcefield=new JTextField(30);
  sourcefield.setBounds(90,20,90,20);
  destinationLabel=new JLabel("Destination");
   destinationLabel.setBounds(10,50,70,20);
  destinationfield=new JTextField(30);
  destinationfield.setBounds(90,50,90,20);
   submit=new JButton("Submit");
  submit.setBounds(40,80,90,30);
  content.add(sourceLabel);
   content.add(sourcefield);
   content.add(destinationLabel);
   content.add(destinationfield);
  content.add(submit);
  submit.addActionListener(this);
  f.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
   System.exit(0);
   }});
   f.setVisible(true);
   //f.addWindowListener(new ExitListener());
 }
 public void actionPerformed(ActionEvent ae) {
  int i;
  String str=ae.getActionCommand();
  if(str.equals("Submit")) {
   try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	//fout =new FileOutputStream(destinationfield.getText());
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	String line;
	while ((line = in.readLine()) != null) {
	 System.out.println(line);//Just read the lines and print them.
	}
	//do {
	// i = fin.read();
	// if(i != -1)
	//  out.write(i);
	//}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
   }
   catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
   }
   catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
   }
   catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
   }
   catch(IOException e) {
	e.printStackTrace();
   }
  }
 }
 public static void main(String[] args)
 {
   new remotefileupload();

 }
}

[r035198x]

i tested that program it reads the content of file and displays it on the system console of the source machine

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
JTextField sourcefield,destinationfield;
JLabel sourceLabel,destinationLabel;
JButton submit;
FileInputStream fin;
FileOutputStream fout;
URL destinationurl;
URLConnection connection;
OutputStreamWriter out;
BufferedReader in;
remotefileupload() {
//WindowUtilities.setNativeLookAndFeel();
JFrame f = new JFrame("This is a test");
f.setSize(300,300);
Container content = f.getContentPane();
content.setBackground(Color.white);
content.setLayout(null);
sourceLabel=new JLabel("Source Path");
sourceLabel.setBounds(10,20,70,20);
sourcefield=new JTextField(30);
sourcefield.setBounds(90,20,90,20);
destinationLabel=new JLabel("Destination");
destinationLabel.setBounds(10,50,70,20);
destinationfield=new JTextField(30);
destinationfield.setBounds(90,50,90,20);
submit=new JButton("Submit");
submit.setBounds(40,80,90,30);
content.add(sourceLabel);
content.add(sourcefield);
content.add(destinationLabel);
content.add(destinationfield);
content.add(submit);
submit.addActionListener(this);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}});
f.setVisible(true);
//f.addWindowListener(new ExitListener());
}
public void actionPerformed(ActionEvent ae) {
int i;
String str=ae.getActionCommand();
if(str.equals("Submit")) {
try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	//fout =new FileOutputStream(destinationfield.getText());
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	String line;
	while ((line = in.readLine()) != null) {
	 System.out.println(line);//Just read the lines and print them.
	}
	//do {
	// i = fin.read();
	// if(i != -1)
	// out.write(i);
	//}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
}
catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
}
catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
}
catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
}
catch(IOException e) {
	e.printStackTrace();
}
}
}
public static void main(String[] args)
{
new remotefileupload();
 
}
}

Now you want to test if you can create the file on the remote machine. Try this

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
 JTextField sourcefield,destinationfield;
 JLabel sourceLabel,destinationLabel;
 JButton submit;
 FileInputStream fin;
 FileOutputStream fout;
 URL destinationurl;
 URLConnection connection;
 OutputStreamWriter out;
 BufferedReader in;
 remotefileupload() {
 //WindowUtilities.setNativeLookAndFeel();
   JFrame f = new JFrame("This is a test");
   f.setSize(300,300);
   Container content = f.getContentPane();
   content.setBackground(Color.white);
   content.setLayout(null);
   sourceLabel=new JLabel("Source Path");
   sourceLabel.setBounds(10,20,70,20);
  sourcefield=new JTextField(30);
  sourcefield.setBounds(90,20,90,20);
  destinationLabel=new JLabel("Destination");
   destinationLabel.setBounds(10,50,70,20);
  destinationfield=new JTextField(30);
  destinationfield.setBounds(90,50,90,20);
   submit=new JButton("Submit");
  submit.setBounds(40,80,90,30);
  content.add(sourceLabel);
   content.add(sourcefield);
   content.add(destinationLabel);
   content.add(destinationfield);
  content.add(submit);
  submit.addActionListener(this);
  f.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
   System.exit(0);
   }});
   f.setVisible(true);
   //f.addWindowListener(new ExitListener());
 }
 public void actionPerformed(ActionEvent ae) {
  int i;
  String str=ae.getActionCommand();
  if(str.equals("Submit")) {
   try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	;
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	fout = new FileOutputStream(destinationfield.getText());
	String line;
	while ((line = in.readLine()) != null) {
	 System.out.println(line);//Just read the lines and print them.
	}
	//do {
	// i = fin.read();
	// if(i != -1)
	//  out.write(i);
	//}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
   }
   catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
   }
   catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
   }
   catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
   }
   catch(IOException e) {
	e.printStackTrace();
   }
  }
 }
 public static void main(String[] args)
 {
   new remotefileupload();

 }
}

and see if the blank file is getting created

[crazystone82]

if i run the program i got the Exception "input file not found"

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
 JTextField sourcefield,destinationfield;
 JLabel sourceLabel,destinationLabel;
 JButton submit;
 FileInputStream fin;
 FileOutputStream fout;
 URL destinationurl;
 URLConnection connection;
 OutputStreamWriter out;
 BufferedReader in;
 remotefileupload() {
 //WindowUtilities.setNativeLookAndFeel();
   JFrame f = new JFrame("This is a test");
   f.setSize(300,300);
   Container content = f.getContentPane();
   content.setBackground(Color.white);
   content.setLayout(null);
   sourceLabel=new JLabel("Source Path");
   sourceLabel.setBounds(10,20,70,20);
  sourcefield=new JTextField(30);
  sourcefield.setBounds(90,20,90,20);
  destinationLabel=new JLabel("Destination");
   destinationLabel.setBounds(10,50,70,20);
  destinationfield=new JTextField(30);
  destinationfield.setBounds(90,50,90,20);
   submit=new JButton("Submit");
  submit.setBounds(40,80,90,30);
  content.add(sourceLabel);
   content.add(sourcefield);
   content.add(destinationLabel);
   content.add(destinationfield);
  content.add(submit);
  submit.addActionListener(this);
  f.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
   System.exit(0);
   }});
   f.setVisible(true);
   //f.addWindowListener(new ExitListener());
 }
 public void actionPerformed(ActionEvent ae) {
  int i;
  String str=ae.getActionCommand();
  if(str.equals("Submit")) {
   try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	;
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	fout = new FileOutputStream(destinationfield.getText());
	String line;
	while ((line = in.readLine()) != null) {
	 System.out.println(line);//Just read the lines and print them.
	}
	//do {
	// i = fin.read();
	// if(i != -1)
	//  out.write(i);
	//}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
   }
   catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
   }
   catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
   }
   catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
   }
   catch(IOException e) {
	e.printStackTrace();
   }
  }
 }
 public static void main(String[] args)
 {
   new remotefileupload();

 }
}

[r035198x]

if i run the program i got the Exception "input file not found"

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
JTextField sourcefield,destinationfield;
JLabel sourceLabel,destinationLabel;
JButton submit;
FileInputStream fin;
FileOutputStream fout;
URL destinationurl;
URLConnection connection;
OutputStreamWriter out;
BufferedReader in;
remotefileupload() {
//WindowUtilities.setNativeLookAndFeel();
JFrame f = new JFrame("This is a test");
f.setSize(300,300);
Container content = f.getContentPane();
content.setBackground(Color.white);
content.setLayout(null);
sourceLabel=new JLabel("Source Path");
sourceLabel.setBounds(10,20,70,20);
sourcefield=new JTextField(30);
sourcefield.setBounds(90,20,90,20);
destinationLabel=new JLabel("Destination");
destinationLabel.setBounds(10,50,70,20);
destinationfield=new JTextField(30);
destinationfield.setBounds(90,50,90,20);
submit=new JButton("Submit");
submit.setBounds(40,80,90,30);
content.add(sourceLabel);
content.add(sourcefield);
content.add(destinationLabel);
content.add(destinationfield);
content.add(submit);
submit.addActionListener(this);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}});
f.setVisible(true);
//f.addWindowListener(new ExitListener());
}
public void actionPerformed(ActionEvent ae) {
int i;
String str=ae.getActionCommand();
if(str.equals("Submit")) {
try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	;
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	fout = new FileOutputStream(destinationfield.getText());
	String line;
	while ((line = in.readLine()) != null) {
	 System.out.println(line);//Just read the lines and print them.
	}
	//do {
	// i = fin.read();
	// if(i != -1)
	// out.write(i);
	//}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
}
catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	return;
}
catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
}
catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
}
catch(IOException e) {
	e.printStackTrace();
}
}
}
public static void main(String[] args)
{
new remotefileupload();
 
}
}

What had you specified as the destination?
Run this and check the stack trace to see which file was not found.

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
public class remotefileupload implements ActionListener {
 JTextField sourcefield,destinationfield;
 JLabel sourceLabel,destinationLabel;
 JButton submit;
 FileInputStream fin;
 FileOutputStream fout;
 URL destinationurl;
 URLConnection connection;
 OutputStreamWriter out;
 BufferedReader in;
 remotefileupload() {
 //WindowUtilities.setNativeLookAndFeel();
   JFrame f = new JFrame("This is a test");
   f.setSize(300,300);
   Container content = f.getContentPane();
   content.setBackground(Color.white);
   content.setLayout(null);
   sourceLabel=new JLabel("Source Path");
   sourceLabel.setBounds(10,20,70,20);
  sourcefield=new JTextField(30);
  sourcefield.setBounds(90,20,90,20);
  destinationLabel=new JLabel("Destination");
   destinationLabel.setBounds(10,50,70,20);
  destinationfield=new JTextField(30);
  destinationfield.setBounds(90,50,90,20);
   submit=new JButton("Submit");
  submit.setBounds(40,80,90,30);
  content.add(sourceLabel);
   content.add(sourcefield);
   content.add(destinationLabel);
   content.add(destinationfield);
  content.add(submit);
  submit.addActionListener(this);
  f.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
   System.exit(0);
   }});
   f.setVisible(true);
   //f.addWindowListener(new ExitListener());
 }
 public void actionPerformed(ActionEvent ae) {
  int i;
  String str=ae.getActionCommand();
  if(str.equals("Submit")) {
   try {
	fin = new FileInputStream(sourcefield.getText());
	in = new BufferedReader(new InputStreamReader(fin));
	;
	String destination=destinationfield.getText();
	destinationurl = new URL(destination);
	connection = destinationurl.openConnection();
	connection.setDoOutput(true);
	//connection.connect();
	out = new OutputStreamWriter(connection.getOutputStream());
	fout = new FileOutputStream(destinationfield.getText());
	String line;
	while ((line = in.readLine()) != null) {
	 System.out.println(line);//Just read the lines and print them.
	}
	//do {
	// i = fin.read();
	// if(i != -1)
	//  out.write(i);
	//}while(i != -1);
	JOptionPane.showConfirmDialog(null,"success", "success", JOptionPane.YES_NO_OPTION);
	fin.close();
	out.close();
	in.close();
   }
   catch(FileNotFoundException e) {
	System.out.println("Input File not found");
	e.printStackTrace();
   }
   catch (MalformedURLException e) {
	e.printStackTrace(); // new URL() failed
   }
   catch(ArrayIndexOutOfBoundsException e) {
	System.out.println(" Copy file frm to");
	return;
   }
   catch(IOException e) {
	e.printStackTrace();
   }
  }
 }
 public static void main(String[] args)
 {
   new remotefileupload();

 }
}

I'm begginning to think we may need a Socket for this

[crazystone82]

i got the following error:


Input File not found
java.io.FileNot FoundException: http:\ws111\Sha re\source.txt (The filename, direc
tory name, or volume label syntax is incorrect)
at java.io.FileOut putStream.open( Native Method)
at java.io.FileOut putStream.<init >(FileOutputStr eam.java:179)
at java.io.FileOut putStream.<init >(FileOutputStr eam.java:70)
at remotefileuploa d.actionPerform ed(remotefileup load.java:60)
at javax.swing.Abs tractButton.fir eActionPerforme d(AbstractButto n.java:17
86)
at javax.swing.Abs tractButton$For wardActionEvent s.actionPerform ed(Abstra
ctButton.java:1 839)
at javax.swing.Def aultButtonModel .fireActionPerf ormed(DefaultBu ttonModel
.java:420)
at javax.swing.Def aultButtonModel .setPressed(Def aultButtonModel .java:258
)
at javax.swing.pla f.basic.BasicBu ttonListener.mo useReleased(Bas icButtonL
istener.java:24 5)
at java.awt.Compon ent.processMous eEvent(Componen t.java:5100)
at java.awt.Compon ent.processEven t(Component.jav a:4897)
at java.awt.Contai ner.processEven t(Container.jav a:1569)
at java.awt.Compon ent.dispatchEve ntImpl(Componen t.java:3615)
at java.awt.Contai ner.dispatchEve ntImpl(Containe r.java:1627)
at java.awt.Compon ent.dispatchEve nt(Component.ja va:3477)
at java.awt.Lightw eightDispatcher .retargetMouseE vent(Container. java:3483
)
at java.awt.Lightw eightDispatcher .processMouseEv ent(Container.j ava:3198)

at java.awt.Lightw eightDispatcher .dispatchEvent( Container.java: 3128)
at java.awt.Contai ner.dispatchEve ntImpl(Containe r.java:1613)
at java.awt.Window .dispatchEventI mpl(Window.java :1606)
at java.awt.Compon ent.dispatchEve nt(Component.ja va:3477)
at java.awt.EventQ ueue.dispatchEv ent(EventQueue. java:480)
at java.awt.EventD ispatchThread.p umpOneEventForH ierarchy(EventD ispatchTh
read.java:201)
at java.awt.EventD ispatchThread.p umpEventsForHie rarchy(EventDis patchThre
ad.java:151)
at java.awt.EventD ispatchThread.p umpEvents(Event DispatchThread. java:145)

at java.awt.EventD ispatchThread.p umpEvents(Event DispatchThread. java:137)

at java.awt.EventD ispatchThread.r un(EventDispatc hThread.java:10 0)



Actually we need to send the file to remote pc by specifing their path in destination textbox.if we use socket then we should open the socket from client side also and we install client program on all the client machine we not need copy the file in all client machine,so we need different solution other then sockets to accept datai.e dynamically the destination pc accept the data

[r035198x]

i got the following error:


Input File not found
java.io.FileNot FoundException: http:\ws111\Sha re\source.txt (The filename, direc
tory name, or volume label syntax is incorrect)
at java.io.FileOut putStream.open( Native Method)
at java.io.FileOut putStream.<init >(FileOutputStr eam.java:179)
at java.io.FileOut putStream.<init >(FileOutputStr eam.java:70)
at remotefileuploa d.actionPerform ed(remotefileup load.java:60)
at javax.swing.Abs tractButton.fir eActionPerforme d(AbstractButto n.java:17
86)
at javax.swing.Abs tractButton$For wardActionEvent s.actionPerform ed(Abstra
ctButton.java:1 839)
at javax.swing.Def aultButtonModel .fireActionPerf ormed(DefaultBu ttonModel
.java:420)
at javax.swing.Def aultButtonModel .setPressed(Def aultButtonModel .java:258
)
at javax.swing.pla f.basic.BasicBu ttonListener.mo useReleased(Bas icButtonL
istener.java:24 5)
at java.awt.Compon ent.processMous eEvent(Componen t.java:5100)
at java.awt.Compon ent.processEven t(Component.jav a:4897)
at java.awt.Contai ner.processEven t(Container.jav a:1569)
at java.awt.Compon ent.dispatchEve ntImpl(Componen t.java:3615)
at java.awt.Contai ner.dispatchEve ntImpl(Containe r.java:1627)
at java.awt.Compon ent.dispatchEve nt(Component.ja va:3477)
at java.awt.Lightw eightDispatcher .retargetMouseE vent(Container. java:3483
)
at java.awt.Lightw eightDispatcher .processMouseEv ent(Container.j ava:3198)

at java.awt.Lightw eightDispatcher .dispatchEvent( Container.java: 3128)
at java.awt.Contai ner.dispatchEve ntImpl(Containe r.java:1613)
at java.awt.Window .dispatchEventI mpl(Window.java :1606)
at java.awt.Compon ent.dispatchEve nt(Component.ja va:3477)
at java.awt.EventQ ueue.dispatchEv ent(EventQueue. java:480)
at java.awt.EventD ispatchThread.p umpOneEventForH ierarchy(EventD ispatchTh
read.java:201)
at java.awt.EventD ispatchThread.p umpEventsForHie rarchy(EventDis patchThre
ad.java:151)
at java.awt.EventD ispatchThread.p umpEvents(Event DispatchThread. java:145)

at java.awt.EventD ispatchThread.p umpEvents(Event DispatchThread. java:137)

at java.awt.EventD ispatchThread.r un(EventDispatc hThread.java:10 0)



Actually we need to send the file to remote pc by specifing their path in destination textbox.if we use socket then we should open the socket from client side also and we install client program on all the client machine we not need copy the file in all client machine,so we need different solution other then sockets to accept datai.e dynamically the destination pc accept the data

I think this is the proper way to do it.
http://java.sun.com/docs/books/tutor...ngWriting.html

Try it and tell me how it goes

[crazystone82]

in that also it need one more program that should run on the server and program run on the client.but we not need such servlet implementation we need simple java program