Java – even in flush()/. Filewriter will not write to the file after close()

I tried to write a text file, but even if the method creates the file, if it doesn't exist, it won't write I have passed several other posts with similar problems and followed the suggestions, but I have no luck

Using the debugger, string data contains the correct data that should be written, but it will never be written to a text file

Any advice on what I have overlooked will be appreciated

private static void createReservation(String filmName,String date,int noOfSeats,String username) {
    FileWriter fw = null;
    try {
        File bookingFile = new File("C:\\server\\bookinginfo.txt");
        if (!bookingFile.exists())
        {
            bookingFile.createNewFile();
        }
        fw = new FileWriter(bookingFile.getName(),true);
        String data = "<"+filmName+"><"+date+"><"+Integer.toString(noOfSeats)+"><"+username+">\r\n";
        fw.write(data);
        fw.flush();
    } catch (IOException ex) {
        Logger.getLogger(FilmInfoHandler.class.getName()).log(Level.SEVERE,null,ex);
    } finally {
        try {
            fw.close();
        } catch (IOException ex) {
            Logger.getLogger(FilmInfoHandler.class.getName()).log(Level.SEVERE,ex);
        }
    }
}

Solution

I see – that's the problem:

new FileWriter(bookingFile.getName(),true);

The getname () method only returns bookinginfo Txt, which means that it will create a file called bookinginfo. TXT in the current working directory Txt file

Just use the constructor with file:

fw = new FileWriter(bookingFile,true);

Also note that you do not need to call createnewfile () first – if the file does not exist, the filewriter constructor will create it

In addition, I'm not a fan of filewriter personally - it always uses the platform default encoding I recommend using fileoutputstream wrapped in outputstreamwriter, where you can specify the encoding Or use the guava helper method, which makes all this easier For example:

Files.append(bookingFile,data,Charsets.UTF_8);