Re: Applet not running on the web
On 2013-01-06 19:58 Arne Vajh??j wrote:
On 1/6/2013 7:46 PM, emf wrote:
The webpage is:
https://files.nyu.edu/emf202/public/jv/NatalTransits.html
and you can find the code in
https://files.nyu.edu/emf202/public/jv/transits/NatalTransitsApplet.java
The applet was working without a problem from the beginning in the
eclipse applet viewer. Then I managed to make it work on browser from my
computer by putting the class and the csv files into a transits folder
(like the package in eclipse) and the html in the higher level
directory. Then I created the same structure in the webserver. The
applet loads, when you enter a invalid birthdate it lets you know, but
when you enter a valid birthdate it seems that it does nothing. I tried
to troubleshoot adding JOptionPanes, and the problem seems to be in the
planet array method:
// array of date, planet position formatted to integer, and in minutes
public int[][] planetArray(String birthday$) {
int i = 0;
String textLine = null;
int[][] planetArray = new int[36525][2];
try {
FileReader ephemeris = new FileReader("transits/ephemeris.csv");
BufferedReader buffer = new BufferedReader(ephemeris);
String date;
do {
textLine = buffer.readLine();
date = textLine.substring(0, 8);
i++;
} while (!date.equals(birthday$));
for (i = 0; i < 36525; i++) {
planetArray[i][0] = Integer.parseInt(textLine.substring(0,
8));
planetArray[i][1] =
toMinutes(textLine.substring(planetPlace,planetPlace
+ 5));
textLine = buffer.readLine();
if (textLine == null) {
break;
} //the remaining places of the array are 0
}
buffer.close();
} catch (IOException e) {
outputArea.setText("Invalid date input.");
outputArea.append("\n" + e.toString());
}
return planetArray;
}
but the try block does not catch any errors. What could the problem be?
Ooops.
#FileReader ephemeris = new FileReader("transits/ephemeris.csv");
applets run client side!
The user do not have a transits/ephemeris.csv file and the
applet would not have priv to access it anyway.
Stuff your class files *and* the CSV file in a jar
file and let the Java code retrieve the CSV as a resource!
Arne
Unfortunately the suggested solutions does not work. I have both
versions on the server:
https://files.nyu.edu/emf202/public/jv/NatalTransitsA.html
uses the jar archive, while
https://files.nyu.edu/emf202/public/jv/NatalTransits.html
uses the transits folder.
Both work fine in my browser when running from the local files, but when
running through the Internet they both give a
java.security.AccessControlException, after using
catch (e Exception)
The code is here
https://files.nyu.edu/emf202/public/jv/NatalTransitsApplet.java
What is done is similar cases?
Eustace
--
Canto General - a folk oratorio of Mikis Theodorakis
https://files.nyu.edu/emf202/public/mt/index.html