Question

public static void main(String []args)throws IOException
{
    //FileInputStream file = new FileInputStream(new File("test.xlsx"));
    FileInputStream fis = new FileInputStream(new File("test.xlsx"));
    XSSFWorkbook workbook = new XSSFWorkbook (fis);
    XSSFSheet sheet = workbook.getSheetAt(0);
    //Create First Row
    XSSFRow row1 = sheet.createRow(0);
    XSSFCell r1c1 = row1.createCell(0);
    r1c1.setCellValue("Emd Id");
    fis.close();
    try
    {
    FileOutputStream fos =new FileOutputStream(new File("test.xlsx"));
    workbook.write(fos);
    fos.close();
    System.out.println("Done");
    }
    catch(FileNotFoundException e)
    {
        e.printStackTrace();
    }
}

错误是：

Exception in thread "main" java.io.FileNotFoundException: test.xlsx (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at excel.CxssfWe1.main(CxssfWe1.java:25)

Answer 1

您正在尝试读取行中不存在的文件

FileInputStream fis = new FileInputStream(new File("test.xlsx"));

这正是错误消息所说的：“（系统找不到指定的文件）”

为什么我无法创建xlsx文件？

1 个答案: