错误Sheet index (0) is out of range (0..-1)

之前使用Java POI操作Excel 发生错误：错误Sheet index (0) is out of range (0…-1)；窗口报错如下：

检测异常代码如下：catch (Exception e) { e.printStackTrace(); monitor.done();关掉进度条，防止卡死； MessageBox.post(AIFDesktop.getActiveDesktop(), "程序异常：" + e.getLocalizedMessage(), "错误", MessageBox.ERROR); }

问题代码：

FileInputStream fileInputStream = new FileInputStream(templateFile);
 XSSFWorkbook workbook = new XSSFWorkbook();

更正代码：

FileInputStream fileInputStream = new FileInputStream(templateFile);
 XSSFWorkbook workbook = new XSSFWorkbook(fileInputStream );