java - BufferedWriter doesn't throw any error, but file is blank -

i'm brand new using java web servers, , i'm writing basic application writes micro-posts file, later called , displayed. ( know database better this, assignment , using file-i/o keep things simple.)

here method in servlet receives form post , writes data file:

    protected void dopost(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception {     string content = request.getparameter("postcontent");      calendar cal = new gregoriancalendar();      int day = cal.get(calendar.day_of_month);     int month = cal.get(calendar.month) + 1; //add 1 because calendar class numbers months 0-11     int year = cal.get(calendar.year);      int hour = cal.get(calendar.hour);     int minutes = cal.get(calendar.minute);      string datetime = integer.tostring(month) + "/" + integer.tostring(day) + "/" + integer.tostring(year) + " " + integer.tostring(hour) + ":" + integer.tostring(minutes);       string user = request.getsession().getattribute("username").tostring();      servletcontext servletcontext = request.getsession().getservletcontext();         string path = servletcontext.getrealpath("/posts.txt");     //string path = getservletcontext().getrealpath("/posts.txt");      try {         bufferedwriter writer = new bufferedwriter(new filewriter(path, true));         writer.write(user);         writer.newline();         writer.write(datetime);         writer.newline();         writer.write(content);         writer.close();     }catch(ioexception ex){         system.out.println(ex.getmessage());     }      response.sendredirect("listposts.jsp"); } 

when run application, everthing goes smoothly , end redirected listpost.jsp, file blank. i've looked @ other questions i'm doing everything right know of. setting bufferedwriter wrong? have posts.txt in wrong place? (it in webcontent folder).

thanks in advance.

update value of path variable follows: /home/[myusername]/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/forum/posts.txt

update know can read posts.txt, tells me application not having trouble finding it.

i'm reading file following code:

protected void doget(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception {     string path = getservletcontext().getrealpath("posts.txt");     bufferedreader reader = new bufferedreader(new filereader(path));     string username = reader.readline();     string datetime = reader.readline();     string postcontent = reader.readline();     reader.close();      request.setattribute("username", username);     request.setattribute("datetime", datetime);     request.setattribute("postcontent", postcontent);      request.getrequestdispatcher("/listposts.jsp").forward(request, response);; } 

ok, feel pretty foolish now. working along writing , reading file in directory of server, not source code stored. when checked text file had manually created, showed no change because not file being used. , input, sorry wasting time.