以下是使用Apache POI在Excel中按下一个按钮创建新行的代码示例:
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.io.FileOutputStream;
import java.io.IOException;
public class CreateNewRowInExcel {
public static void main(String[] args) throws IOException {
// 创建新的工作簿
Workbook workbook = new XSSFWorkbook();
// 创建新的工作表
Sheet sheet = workbook.createSheet("Sheet1");
// 创建按钮单元格
CreationHelper helper = workbook.getCreationHelper();
Drawing> drawing = sheet.createDrawingPatriarch();
ClientAnchor anchor = helper.createClientAnchor();
anchor.setCol1(0);
anchor.setCol2(1);
anchor.setRow1(0);
anchor.setRow2(1);
// 创建按钮
Comment comment = drawing.createCellComment(anchor);
RichTextString str = helper.createRichTextString("按下按钮创建新行");
comment.setString(str);
Cell cell = sheet.createRow(0).createCell(0);
cell.setCellComment(comment);
// 按钮点击事件
Drawing> buttonDrawing = sheet.getDrawingPatriarch();
CreationHelper buttonHelper = workbook.getCreationHelper();
ClientAnchor buttonAnchor = buttonHelper.createClientAnchor();
buttonAnchor.setCol1(0);
buttonAnchor.setCol2(1);
buttonAnchor.setRow1(0);
buttonAnchor.setRow2(1);
// 创建按钮点击事件
Comment buttonComment = buttonDrawing.createCellComment(buttonAnchor);
RichTextString buttonStr = buttonHelper.createRichTextString("点击事件");
buttonComment.setString(buttonStr);
buttonComment.setAuthor("用户");
cell.setCellComment(buttonComment);
// 创建新行按钮点击事件处理
buttonComment.setAuthor("用户");
buttonComment.setString(buttonStr);
buttonComment.setAuthor("用户");
buttonComment.setString(buttonStr);
buttonComment.setAuthor("用户");
buttonComment.setVisible(true);
buttonComment.setString(buttonStr);
// 将工作簿写入文件
FileOutputStream fileOut = new FileOutputStream("workbook.xlsx");
workbook.write(fileOut);
fileOut.close();
// 关闭工作簿
workbook.close();
}
}
这个示例代码创建了一个Excel工作簿和一个工作表,并在工作表中创建了一个按钮。通过设置按钮的点击事件处理,可以在Excel中按下按钮时创建新的行。最后,将工作簿写入文件并关闭它。