JTable Column header

Question

I'm trying to display more detailed column headers, without using the database column names supplied by DbUtils.resultSetToTableModel(). Here is my code:

ResultSet rs = null;
PreparedStatement pst = null;
String sql = "SELECT * From product";
String col[] = {"Product No", "Name", "Price", "QOH"};
DefaultTableModel dtm = new DefaultTableModel();
try {
    pst = conn.prepareStatement(sql);
    rs = pst.executeQuery();
    dtm.setColumnIdentifiers(col);
    ProductList_tbl.setModel(dtm);
    ProductList_tbl.setModel(DbUtils.resultSetToTableModel(rs));
}

but it still displays the database table column names.

Answer 1

Guessing which DbUtils you're using, a few things come to mind:

• Use an SQL alias for each desired column, instead of the wildcard, e.g.

  SELECT column_name AS alias_name;
  

• Update the TableModel after it has been created by DbUtils.resultSetToTableModel() using whatever API is available.

Answer 2

If the DbUtils doesn't provide an API to change the column value then you should be able to use the standard table classes:

TableColumnModel tcm = table.getColumnModel();
TableColumn tc = tcm.getColumn(...);
tc.setHeaderValue( "..." );