How to set font in excel using customized data exporter in Primefaces? - primefaces

Question

I am using primefaces 6.1. I need to export my report list to excel format.For this i used primefaces data exporter.Dataexporter is giving me excel format. I have also set font in the excel. But the font is not completely working in my excel file.The set font appears in the table header only.
My Code is like this:
public void postProcessXLS(Object document) {
HSSFWorkbook wb = (HSSFWorkbook) document;
HSSFSheet sheet = wb.getSheetAt(0);
HSSFRow header = sheet.getRow(0);
HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setFillForegroundColor(HSSFColor.AQUA.index);
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
HSSFFont fontHeader = (HSSFFont) wb.createFont();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
fontHeader.setFontName("Magnus Nepali");
cellStyle.setFont(fontHeader);
for(int i=0; i < header.getPhysicalNumberOfCells();i++) {
HSSFCell cell = header.getCell(i);
cell.setCellStyle(cellStyle);
}
}
My button code is :
<p:commandButton id="excel" ajax="false">
<p:dataExporter type="xls" target="tblReport" fileName="report" postProcessor="#{shareDividendMB.postProcessXLS}" />
</p:commandButton>
My excel format is like this:
Only excel sheet header has changed to font defined and the remaining data have Arial font.I tried other than my font and the result is same.

Answer 1

Finally i got the solution.My working code is like this:
public void postProcessXLS(Object document) {
HSSFWorkbook wb = (HSSFWorkbook) document;
HSSFSheet sheet = wb.getSheetAt(0);
HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setFillForegroundColor(HSSFColor.AQUA.index);
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
HSSFFont fontHeader = (HSSFFont) wb.createFont();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
fontHeader.setFontName("Magnus Nepali");
cellStyle.setFont(fontHeader);
for (Row row : sheet) {
for (Cell cell : row) {
cell.setCellStyle(cellStyle);
}
}
}