Apache POI 格式 Table 未显示总行数

Question

我有一个 class 可以使用下面的代码创建格式化的 table :

public class formatAsTable {

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

        Workbook wb = new XSSFWorkbook();
        XSSFSheet sheet = (XSSFSheet) wb.createSheet();


        XSSFTable my_table = sheet.createTable();


        CTTable cttable = my_table.getCTTable();

        /* Let us define the required Style for the table */
        CTTableStyleInfo table_style = cttable.addNewTableStyleInfo();
        table_style.setName("TableStyleMedium9");


        table_style.setShowColumnStripes(false); //showColumnStripes=0
        table_style.setShowRowStripes(true); //showRowStripes=1


        AreaReference my_data_range = wb.getCreationHelper().createAreaReference(new CellReference(0, 0), new CellReference(4, 2));

        cttable.setRef(my_data_range.formatAsString());
        cttable.setDisplayName("MYTABLE");

        cttable.addNewAutoFilter();

        cttable.setName("Test");
        cttable.setId(1L);

        CTTableColumns columns = cttable.addNewTableColumns();
        columns.setCount(3L); //define number of columns

        for (int i = 0; i < 3; i++) {
            CTTableColumn column = columns.addNewTableColumn();
            column.setName("Column" + i);
            column.setId(i + 1);
        }

        /* Add And Show TotelRow */
        cttable.setTotalsRowShown(true);

        for (int x = 0; x < 3; x++) {
            cttable.getTableColumns().getTableColumnArray(x).setId(x + 1);

            switch (x) {
                case 0 ->
                    cttable.getTableColumns().getTableColumnArray(x).setTotalsRowLabel("Totales: ");
                default ->
                    cttable.getTableColumns().getTableColumnArray(x).setTotalsRowFunction(org.openxmlformats.schemas.spreadsheetml.x2006.main.STTotalsRowFunction.SUM);
            }
        }

        for (int i = 0; i <= 4; i++) //we have to populate 4 rows
        {
            XSSFRow row = sheet.createRow(i);
            for (int j = 0; j < 3; j++) //Three columns in each row
            {
                XSSFCell localXSSFCell = row.createCell(j);
                if (i == 0) {
                    localXSSFCell.setCellValue("Heading" + j);
                } else {
                    localXSSFCell.setCellValue(i + j);
                }
            }
        }

        FileOutputStream fileOut = new FileOutputStream("Excel_Format_As_Table.xlsx");
        wb.write(fileOut);
        fileOut.close();
    }
}

它工作正常，但即使我设置 cttable.setTotalsRowShown(true)；它没有显示总行数！

而且我必须打开文件并在 table 中的 Total Row 上选中要制作的设计可见：

我更改了名称和内容，并尝试添加不同的格式，但没有结果

Answer 1

主要问题是需要设置 CTTable.setTotalsRowCount(1) 以显示一个总计行。您使用的 CTTable.setTotalsRowShown(true) 有其他含义。

根据 ECMA-376 Office Open XML 文件格式属性 totalsRowShown 表示：

A Boolean indicating whether the totals row has ever been shown in the past for this table. True if the totals row has been shown, false otherwise.

但是属性 totalsRowCount 表示：

An integer representing the number of totals rows that shall be shown at the bottom of the table.

0 means that the totals row is not shown. It is up to the spreadsheet application to determine if numbers greater than 1 are allowed. Unless the spreadsheet application has a feature where their might ever be more than one totals row, this number should not be higher than 1.

但在 Excel 中，table 的值和设置始终必须在 table 设置和存在 table 的 sheet 中同步。否则它将无法工作，甚至可能导致工作簿损坏。因此，与 headers 行一样，sheet 也需要有总计行。 sheet 中总计行中的值和公式必须对应于 table 设置。

以下完整示例展示了这一切。在可能的情况下，它使用 apache poi 的高级别类。它使用 apache poi 5.0.0 和 apache poi 4.1.2 进行了测试和工作。不支持较低版本，因为它们在 table 创建时存在错误。

import java.io.FileOutputStream;
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.util.AreaReference;
import org.apache.poi.ss.util.CellReference;

class CreateExcelTable {

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

  try (XSSFWorkbook workbook = new XSSFWorkbook();
       FileOutputStream fileout = new FileOutputStream("Excel.xlsx") ) {

   //prepairing the sheet
   XSSFSheet sheet = workbook.createSheet();
   
   String[] tableHeadings = new String[]{"Heading1", "Heading2", "Heading3"};
   String tableName = "Table1";
   int firstRow = 0; //start table in row 1
   int firstCol = 0; //start table in column A
   int rows = 6; //we have to populate headings row, 4 data rows and 1 totals row
   int cols = 3; //three columns in each row
  
   for (int r = 0; r < rows; r++) { 
    XSSFRow row = sheet.createRow(firstRow+r);
    for (int c = 0; c < cols; c++) { 
     XSSFCell localXSSFCell = row.createCell(firstCol+c);
     if (r == 0) {
      localXSSFCell.setCellValue(tableHeadings[c]);
     } else if (r == 5) {
      //totals row content will be set later
     } else {
      localXSSFCell.setCellValue(r + c);
     }
    }
   }
   
   //create the table
   CellReference topLeft = new CellReference(sheet.getRow(firstRow).getCell(firstCol));
   CellReference bottomRight = new CellReference(sheet.getRow(firstRow+rows-1).getCell(firstCol+cols-1));
   AreaReference tableArea = workbook.getCreationHelper().createAreaReference(topLeft, bottomRight);
   XSSFTable dataTable = sheet.createTable(tableArea);
   dataTable.setName(tableName);
   dataTable.setDisplayName(tableName);

   //this styles the table as Excel would do per default
   dataTable.getCTTable().addNewTableStyleInfo();
   XSSFTableStyleInfo style = (XSSFTableStyleInfo)dataTable.getStyle();
   style.setName("TableStyleMedium9");
   style.setShowColumnStripes(false);
   style.setShowRowStripes(true);
   style.setFirstColumn(false);
   style.setLastColumn(false);

   //this sets auto filters
   dataTable.getCTTable().addNewAutoFilter().setRef(tableArea.formatAsString());
   
   //this sets totals properties to table and totals formulas to sheet
   XSSFRow totalsRow = dataTable.getXSSFSheet().getRow(tableArea.getLastCell().getRow());
   for (int c = 0; c < dataTable.getCTTable().getTableColumns().getTableColumnList().size(); c++) {
    if (c == 0) {
     dataTable.getCTTable().getTableColumns().getTableColumnList().get(c).setTotalsRowLabel("Totals: ");
     totalsRow.getCell(tableArea.getFirstCell().getCol()+c).setCellValue("Totals: ");
   } else {
     dataTable.getCTTable().getTableColumns().getTableColumnList().get(c).setTotalsRowFunction(org.openxmlformats.schemas.spreadsheetml.x2006.main.STTotalsRowFunction.SUM); 
     totalsRow.getCell(tableArea.getFirstCell().getCol()+c).setCellFormula("SUBTOTAL(109," + tableName + "[" + tableHeadings[c] + "])");
    }
   }
   //this shows the totals row
   dataTable.getCTTable().setTotalsRowCount(1);

   workbook.write(fileout);
  }

 }
}

所有org.openxmlformats.schemas.spreadsheetml.x2006.main.*的使用类需要ooxml-schemas-1.4.jar用于apache poi 4.1.2或poi-ooxml-full-5.0.0.jar用于apache poi 5.0.0。 ooxml 的精简版不包含所有类。参见 https://poi.apache.org/help/faq.html#faq-N10025

Apache POI 格式 Table 未显示总行数

Apache POI Format Table Not showing Total Row

xml

apache-poi

xssf