xsl1

public HSSFWorkbook readExcelTemplate(InputStream inputStream,
                    String sheetName) throws FileNotFoundException
    {
        HSSFWorkbook wb = null;
        try
        {
            wb = new HSSFWorkbook(new POIFSFileSystem(inputStream));
            HSSFSheet sheet = null;
            sheet = wb.getSheet(sheetName);
            if (sheet == null)
                sheet = wb.getSheetAt(0);
            if (sheet == null)
                sheet = wb.createSheet(sheetName);
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        finally
        {
            try
            {
                if(inputStream != null)
                {
                    inputStream.close();
                }
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
       
        return wb;       
    }
   
/**
* 写Excel表到文件。
* @param excel
*            :Excel对象
* @param sheetName：Excel
*            页签
* @param outfile：输出文件名
* @return
* @throws FileNotFoundException
* @throws FileNotFoundException
*/
public void writeExcelOutputFile(HSSFWorkbook excel,
String outfile) throws FileNotFoundException,IOException {
OutputStream fout = new FileOutputStream(outfile);
HSSFWorkbook wb = excel;
if (wb == null)
return;
try {
wb.write(fout);
} catch (IOException e) {
throw e;
} finally {
fout.close();
}
}