//excel模板路径
File fi=new File(basePath+templetName);
POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(fi));
//读取excel模板
HSSFWorkbook wb = new HSSFWorkbook(fs);
//读取了模板内所有sheet内容
HSSFSheet sheet = wb.getSheetAt(0);
//在相应的单元格进行赋值
HSSFCell cell = sheet.getRow(1).getCell(0);
cell.setCellValue(XX);
//excel模板路径
File fi=new File(basePath+templetName