Java在Linux中不执行命令

Question

I'm making a GUI for a CLI program and when this event is activated the jLabel4 text instantly changes to Task: Finished Exporting .

Why is the .exec(...); command not working? It's not the command syntax, I tried replacing my command with touch new.file and that doesn't work either.

To me it seems like it doesn't event try to execute the command.

Java Code:

private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {                                           
    if (ext[1].equals("iso") || ext[1].equals("wbfs")) {
        String tmpPath = "";
        if (jtPath.indexOf(".") > 0)
             tmpPath = jtPath.substring(0, jtPath.lastIndexOf("."));

        Process p;
        try {
            p = Runtime.getRuntime().exec("wit extract \"" + jtPath + "\" \"" + tmpPath + "\"");
            p.waitFor();
            jLabel4.setText("Task: Exporting...");
            p.destroy();
        } catch (IOException ex) {
            Logger.getLogger(MainFrame.class.getName()).log(Level.SEVERE, null, ex);
        } catch (InterruptedException ex) {
            Logger.getLogger(MainFrame.class.getName()).log(Level.SEVERE, null, ex);
        }
        System.out.println("wit extract \"" + jtPath + "\" \"" + tmpPath + "\"");

        jLabel4.setText("Task: Finished Exporting");
    } else {
        JOptionPane.showMessageDialog(null, "You can only extract .iso and .wbfs file formats.");
    }
}    

Command Line Output:

wit extract "/home/adam/Wii Hacking/NSMBW SMNE01.wbfs" "/home/adam/Wii Hacking/NSMBW SMNE01"

Answer 1

Probably the problem is the space in the file name or, more exactly, that quotes do not work in the command string since it is not processed by a shell.

Try using the exec method that accepts an array of strings:

p = Runtime.getRuntime().exec(new String[] {"wit", "extract", jtPath, tmpPath});

And still do handle standard output and error.