Re: Obtain file path and file name using file chooser
Andrew Thompson wrote:
bH wrote:
Andrew Thompson wrote:
bH wrote:
I want to obtain both file "path" and the filenamed MyText.txt ....as
in "C:\Documents
and Settings\bH\Desktop\MyShowWithFrame\MyText.txt"
...
...
int returnVal = fc.showOpenDialog(FileChooserDemo.this);
fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile ();
strngFileName = file.getName();
...
strngFileName = file.getPath() +
System.getProperty("file.separator") +
file.getName();
..
Because I am connecting with a printer after locating a file address
when I am using the file chooser, all the file separators are "\" but
should be "/".
Aaaah.. my original answer was ..incomplete.
I was prodding you in the direction (I thought) this
code needs to go, but since we've already arrived 'there',
let's take it a bit further.
1) For starters, the way I constructed that file was
sloppy and inefficient. The *best* way to create a File
in a given directory is to use the File contstructor to
create a File based on ..
new File(File parent, File theFile)
..to automatically get the correct separator.
2) I cannot see why the code needs to be manipulating the
String name of the File(s) at all. Don't the later methods
accept files as parameters? If that is the case, you can
simply hand the later methods 'the file', and be done with it.
3) If the String name of the File *is* actually of interest, I
am pretty sure that File has some methods to produce
the entire path and filename. Check the API..
Andrew T.
/* Tested using Win2k with NT, with Java jdk1.5.0_05 and a Canon
Printer.
* This program will print "m.txt", "t.java", "ms.html" source code as
long as the
* files are in the same folder as this program OR if the path and
name is shown.
*
* The printer output starts at the very top of the page, full to the
very bottom
* of the page, full left and right. However, indents are shown.
* Then similarily on to the second page if needed. Printing stops on
the page
* at where ever the stream stops. To get the paper out of the
printer:
* press right button on the Canon Printer.
*/
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.UIManager;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;
import javax.print.event.*;
public class UseFileChooser_TxtPrint extends JFrame {
JButton buttnOne, buttnTwo;
String strFileName= "";
public static void main(String[] args) {
UseFileChooser_TxtPrint UseFileChooser_TxtPrint1 = new
UseFileChooser_TxtPrint();
}
public UseFileChooser_TxtPrint() {
super("Print Text . . .");
final JFileChooser fc = new JFileChooser();
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel dataPnl = new JPanel();
JPanel btnPnl = new JPanel();
JLabel lbleFileName = new JLabel("Start With Chooser Button Then
Printer Button >>> ");
buttnOne = new JButton("Chooser Button");
buttnTwo = new JButton("Print Button");
dataPnl .setLayout(new GridLayout(2, 2));
dataPnl .add(lbleFileName);
btnPnl.add( buttnOne);
btnPnl.add( buttnTwo);
this.getContentPane().add(dataPnl, BorderLayout.NORTH);
this.getContentPane().add(btnPnl, BorderLayout.SOUTH);
setSize(400, 100);
setVisible(true);
buttnOne.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (e.getSource() == buttnOne) {
int returnVal = fc.showOpenDialog(UseFileChooser_TxtPrint
..this);
File file = fc.getSelectedFile();
strFileName = file.getPath();
}
}
});
buttnTwo.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent h) {
if (h.getSource() == buttnTwo) {
System.out.println("Now Printing File " + strFileName);
try {
InputStream is = new BufferedInputStream(
new
FileInputStream(strFileName));
// Find the default service
DocFlavor flavor =DocFlavor.INPUT_STREAM.AUTOSENSE;
PrintService service =
PrintServiceLookup.lookupDefaultPrintService();
// Create the print job
DocPrintJob job = service.createPrintJob();
Doc doc = new SimpleDoc(is, flavor, null);
// Monitor print job events for use for the implementation
of PrintJobWatcher,
PrintJobWatcher pjDone = new PrintJobWatcher(job);
// Print it
job.print(doc, null);
// Wait for the print job to be done
pjDone.waitForDone();
// It is now safe to close the input stream
is.close();
} catch (PrintException e) {
} catch (IOException e) {
}
System.out.println("Task Completed" );
}
}
} );
}
class PrintJobWatcher {
// true iff it is safe to close the print job's input stream
boolean done = false;
PrintJobWatcher(DocPrintJob job) {
// Add a listener to the print job
job.addPrintJobListener(new PrintJobAdapter() {
public void printJobCanceled(PrintJobEvent pje) {
allDone();
}
public void printJobCompleted(PrintJobEvent pje) {
allDone();
}
public void printJobFailed(PrintJobEvent pje) {
allDone();
}
public void printJobNoMoreEvents(PrintJobEvent pje) {
allDone();
}
void allDone() {
synchronized (PrintJobWatcher.this) {
done = true;
PrintJobWatcher.this.notify();
}
}
});
}
public synchronized void waitForDone() {
try {
while (!done) {
wait();
}
} catch (InterruptedException e) {
}
}
}
}