Excel根据模板生成数据

就是有个模板，完全保留模板样式的情况下，在相应的地方更改或保留数据

//参数按顺序分别是模板路径，生成后的文件保存到的路径，替换的内容（键为“行-列”），第几个sheet

public static void getExcelMB(String pathIn,String pathOut,Map<String, Object> changeMap,int SheetNum) throws IOException{
		Workbook workbook;
		Sheet sheet;
		String bb;		
		
		try {
			Set<String> keySet=changeMap.keySet();		
			FileInputStream is=new FileInputStream(pathIn);
				workbook=new HSSFWorkbook(is);
				sheet=(HSSFSheet) workbook.getSheetAt(SheetNum);
			for (String key : keySet) {
				String[] hl=key.split("-");
				Row row=sheet.getRow(Integer.parseInt(hl[0]));
				Cell cell=row.getCell(Integer.parseInt(hl[1]));
				cell.setCellValue(String.valueOf(changeMap.get(key)));
			}
			
			FileOutputStream fileOut = new FileOutputStream(pathOut);
			workbook.write(fileOut);
			fileOut.close();
			workbook.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}