It's very easy.
1) In your HTML:
# Export to Spreadsheet
2) In your Java:
add(new DownloadLink("link", generateExcelFile());
The DownloadLink is a provided Wicket class. Note that generateExcelFile()
must return a File object. If the file already exists, you just read it. If
you need to create a spreadsheet in POI, I recommend something like this
utility method:
public void File generateExcelFile() {
FileOutputStream fos = new FileOutputStream(new File("report.xls"));
HSSFWorkbook wb = new HSSFWorkbook();
//...
wb.write(fos);
fos.close();
}
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