java - 如何使用java在apache poi中使用rowiterator？

Question

我试图在 java 中使用 apache poi 读取 excel 文件，但是，Eclipse 没有编译代码。

public class ReadExcel {

    public static void main(String[] args) throws IOException {

        FileInputStream file = new FileInputStream(new File("C:\\Users\\XXXXXXXXXXXXXXXXal\\042012.xls"));
        HSSFWorkbook wb = new HSSFWorkbook(file);
        HSSFSheet sheet = wb.getSheetAt(0);
        Iterator<Row> rowIterator = sheet.iterator();

        while (rowIterator.hasNext()) {

        Row row = rowIterator().next();      \\ THIS LINE GETS UNDERLINED BY ECLIPSE!!!
         Iterator<Cell> cellIterator = row.cellIterator();
            while(cellIterator.hasNext()) {

                Cell cell = cellIterator.next();

                        System.out.print(cell.getStringCellValue() + "\t\t");

                            }

        }
        file.close();
        FileOutputStream out =
            new FileOutputStream(new File("C:\\test.xls"));
        wb.write(out);
        out.close();
        }


    }

Eclipse 总是在 Row row = rowIterator().next(); 行下划线。我不知道为什么？我该如何改进它？

Answer 1

问题不在于eclipse，而在于代码。您不能将作为变量的 rowIterator 视为一种方法。您不能使用 () 语法调用变量。

试试这个:

  public static void main(String[] args) throws IOException {
    FileInputStream file = new FileInputStream(new File("C:\\Users\\XXXXXXXXXXXXXXXXal\\042012.xls"));
    HSSFWorkbook wb = new HSSFWorkbook(file);
    HSSFSheet sheet = wb.getSheetAt(0);
    Iterator<Row> rowIterator = sheet.iterator();
    while (rowIterator.hasNext()) {
      Row row = rowIterator.next();
      Iterator <Cell> cellIterator = row.cellIterator();
      while (cellIterator.hasNext()) {
        Cell cell = cellIterator.next();
        System.out.print(cell.getStringCellValue() + "\t\t");
      }
    }
    file.close();
    FileOutputStream out =
      new FileOutputStream(new File("C:\\test.xls"));
    wb.write(out);
    out.close();
  }