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Apache POI关注生成的excel文件中的特定单元格

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嗨，我正在使用apache poi生成excel文件 . 我正在使用XSSFWorkbook格式 . 我试图将焦点放在生成的excel文件的第一个单元格上 .

我试过以下代码片段 .

try {
                Sheet sheet = workbook.getSheetAt(0);
                workbook.setActiveSheet(0);
                Cell cell = sheet.getRow(0).getCell(0);
                cell.setAsActiveCell();
                sheet.setActiveCell(cell.getAddress());
                sheet.showInPane(0, 0);
            } catch (IllegalArgumentException e) {
                LOGGER.error("Failed to set active sheet and cell.", e);
            }

我也看过这个SO question . 解决方案似乎对我不起作用 . 有人可以帮我吗？

P.S：我正在使用apache poi 3.15版 .

更新1：

我还有一个冻结窗格，左上角的单元格为C1 . 冻结没有正确显示 .

我试过以下代码

public void setActiveCell(Workbook workbook, int sheetIndex, int row, int column) {
        Sheet sheet = workbook.getSheetAt(sheetIndex);
        CellAddress cellAddress = new CellAddress(row, column);

        sheet.createFreezePane(2, 0);
        ((XSSFSheet) sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0).getPane()
            .setTopLeftCell("C1");
        ((XSSFSheet) sheet).setActiveCell(cellAddress);

//        ((XSSFSheet) sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0)
//            .setTopLeftCell(cellAddress.formatAsString());
//        ((XSSFSheet) sheet).setActiveCell(cellAddress);
}

我将上面的代码称为 setActiveCell(workbook, 0, 0, 0); . 确保工作簿不为空并且包含至少一个工作表 . 上面的代码既没有显示C1单元格（创建的窗格的左上角单元格），也没有显示A1单元格（活动单元格集） .

更新2：

基于@AlexRichter的答案，以下代码适用于我：

public void setActiveCell(Workbook workbook, int sheetIndex, int row, int column) {
        Sheet sheet = workbook.getSheetAt(sheetIndex);
        CellAddress cellAddress = new CellAddress(row, column);

        sheet.createFreezePane(2, 0);
        ((XSSFSheet) sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0).getPane()
            .setTopLeftCell("C1");

        ((XSSFSheet) sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0)
            .setTopLeftCell(cellAddress.formatAsString());
}
java excel apache-poi

1 回答

  • 2

    不幸的是 XSSFSheet.showInPane 是马车 .

    以下适用于我：

    import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.*;

import java.io.FileOutputStream;

class TopLeftCell {

 public static void main(String[] args) throws Exception{
  Workbook wb = new XSSFWorkbook();

  Sheet sheet = wb.createSheet("new sheet");

  ((XSSFSheet)sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0).setTopLeftCell("D10");
  ((XSSFSheet)sheet).setActiveCell(new CellAddress("E11"));

  wb.write(new FileOutputStream("TopLeftCell.xlsx"));
  wb.close();
 }
}

    它使用基本低级对象的 setTopLeftCell .

    如果您有窗格，则必须为所需的窗格设置TopLeftCell . 例：

    import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.*;

import java.io.FileOutputStream;

class TopLeftCell {

 public static void main(String[] args) throws Exception{
  Workbook wb = new XSSFWorkbook();

  Sheet sheet = wb.createSheet("new sheet");
/*
  ((XSSFSheet)sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0).setTopLeftCell("D10");
  ((XSSFSheet)sheet).setActiveCell(new CellAddress("E11"));
*/

  sheet.createFreezePane(2, 2); //C3 is top left cell of the scrollable pane
  ((XSSFSheet)sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0).getPane().setTopLeftCell("C3");
  ((XSSFSheet)sheet).setActiveCell(new CellAddress("A1"));

  wb.write(new FileOutputStream("TopLeftCell.xlsx"));
  wb.close();
 }
}

    如果固定窗格不包含任何行，则似乎有异常 . 然后在 .getPane().setTopLeftCell 中设置行是没有意义的 . 然后必须在SheetView中的 TopLeftCell 中直接设置顶行 .

    例：

    import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.*;

import java.io.FileOutputStream;

class TopLeftCell {

 public static void main(String[] args) throws Exception{
  Workbook wb = new XSSFWorkbook();

  Sheet sheet = wb.createSheet("new sheet");

  sheet.createFreezePane(2, 0); //C1 is top left cell of the scrollable pane.
  //But if the fixed pane contains no rows, as in this example, then setting the row in 
  //getPane().setTopLeftCell is meaningless. Then the top row must be set in the SheetView.
  //Example: Row 6 shall be the top row:
  ((XSSFSheet)sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0).setTopLeftCell("A6");
  ((XSSFSheet)sheet).getCTWorksheet().getSheetViews().getSheetViewArray(0).getPane().setTopLeftCell("C1");
  ((XSSFSheet)sheet).setActiveCell(new CellAddress("C6"));

  wb.write(new FileOutputStream("TopLeftCell.xlsx"));
  wb.close();
 }
}
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