I have the class MysqlToXls
copied from here:
http://mikescode.wordpress.com/2008/02/16/exporting-a-mysql-table-to-excel-xls-in-java/
I edited the class making a constructor that doesn’t need any parameter in this way:
public MysqlToXls()
throws ClassNotFoundException, SQLException {
// Create MySQL database connection
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://localhost/Spinning?user=root&useUnicode=true&characterEncoding=utf8";
connection = DriverManager.getConnection(url);
}
While there is not any guide I try to do myself and I’m not able.
MysqlToXls m=new MysqlToXls();
m.generateXls("utente", "utenti.xls");
But there are no errors and the file utenti.xls remains blank.
Does someone know where is the problem?
It is possible that you have to explicitly close the outputStream, so insted of doing this:
xlsWorkbook.write(new FileOutputStream(filename));
you should try to do something like this:
FileOutputStream fos = new FileOutputStream(filename);
xlsWorkbook.write(fos);
fos.close();
Answer:
the only problem was the path of the file. I was trying to save the file in one folder of the project (with a relative path), while if I give the absolute path (f.e. on the desktop) it works perfectly!