在将 header 选项与 XLSX.utils.json_to_sheet 一起使用时，header 不会覆盖

Question

虽然我尝试通过将标题数组传递给如下选项来更改 header 标题，但它不会覆盖 header。相反，它首先从下一个单元格写入新的 headers 和旧的 headers 的原始数据。我传递了相同数量的 header 个标题。

这是我的代码

const ws: XLSX.WorkSheet = XLSX.utils.json_to_sheet(json, {header: headerColumns});
    const wb: XLSX.WorkBook = XLSX.utils.book_new();
    XLSX.utils.book_append_sheet(wb, ws, 'Transactions');
    const excelBuffer: any = XLSX.write(wb, { bookType: 'xlsx', type: 'array' });
    this.saveAsExcelFile(excelBuffer, excelFileName);

输出如下所示。

Answer 1

“header”选项的基本工作不是覆盖，而只是移动列的起始选项。即在 header 选项中传递的任何值都将被视为第一列，前提是该值应与数据中的现有键匹配。

XLSX.utils.json_to_sheet([{A:1,B:2},{B:2,C:3}], {header:['C']})

此处“C”列将是 excel 中的第一列。如需更多信息，请在此处查看详细说明：https://docs.sheetjs.com/#sheetjs-js-xlsx

Answer 2

这就是我实现类似行为的方式。

const XLSX = require('xlsx');
const wb = XLSX.utils.book_new();

    const Heading = [
        ['Sr No', 'User Name', 'Department', 'Bank', 'Country', 'Region', 'Amount']
      ];

      // creating sheet and adding data from 2nd row of column A.
      // Leaving first row to add Heading
    const ws = XLSX.utils.json_to_sheet(data, { origin: 'A2', skipHeader: true });

    // adding heading to the first row of the created sheet.
    // sheet already have contents from above statement.
    XLSX.utils.sheet_add_aoa(ws, Heading, { origin: 'A1' });

    // appending sheet with a name
    XLSX.utils.book_append_sheet(wb, ws, 'Records');

const fileContent = XLSX.write(wb, { bookType: 'xlsx', type: 'buffer' });

Answer 3

very traditional approach but working, please see complete code below :

const worksheet: XLSX.WorkSheet = XLSX.utils.json_to_sheet(this.releaseDateWiseCountList);
    worksheet.A1.v = "Pick Release Date";
    worksheet.B1.v = "Task Type";
    worksheet.C1.v = "First Shift";
    worksheet.D1.v = "Second Shift";
    worksheet.E1.v = "Total";
    worksheet.F1.v = "Grand Total";
    worksheet.G1.v = "Pick %";
    const workbook: XLSX.WorkBook = { Sheets: { 'data': worksheet }, SheetNames: ['data'] };
    const excelBuffer: any = XLSX.write(workbook, { bookType: 'xlsx', type: 'array' });
const data: Blob = new Blob([buffer], {type: EXCEL_TYPE});  
    FileSaver.saveAs(data , 'Result_export_' + new  Date().getTime() + EXCEL_EXTENSION);

在将 header 选项与 XLSX.utils.json_to_sheet 一起使用时，header 不会覆盖

while using header option with XLSX.utils.json_to_sheet , headers not overriding

js-xlsx