为什么在 Laravel 中导出为 EXCEL 文件时，当月份为两位数时，jQuery 数据表无法正确导出日期？

Question

我想将导出数据导出为EXCEL 文件，与视图中显示的完全相同，它可以工作，但没有正确导出日期，我尝试如下：

 $('#get_hourly_report').click(function () {

        var id = $('#teacher').val();
        var first_date = $('#jalali-datepicker3').val();
        var second_date = $('#jalali-datepicker4').val();
        $(".h_report_icon").addClass('fa fa-spinner fa-spin');
        $.ajax({
            method: "get",
            url: "attendance/getTeacherAttendanceReport/",
            data: {
                'id': id,
                'f_date': first_date,
                's_date': second_date
            },
            success: function (data) {
                $.fn.dataTable.moment('DD/MM/YYYY');
                table = $('#example2').DataTable({

                    destroy: true,
                    "bPaginate": false,
                    dom: 'Bfrtip',
                    bFilter: false,
                    buttons: [
                        {
                            extend: 'excelHtml5',
                            footer: true,
                            customize: (xlsx, config, dataTable) => {
                                let sheet = xlsx.xl.worksheets['sheet1.xml'];
                                let footerIndex = $('sheetData row', sheet).length;
                                let $footerRows = $('tr', dataTable.footer());

                                // If there are more than one footer rows
                                if ($footerRows.length > 1) {
                                    // First header row is already present, so we start from the second row (i = 1)
                                    for (let i = 1; i < $footerRows.length; i++) {
                                        // Get the current footer row
                                        let $footerRow = $footerRows[i];

                                        // Get footer row columns
                                        let $footerRowCols = $('th', $footerRow);

                                        // Increment the last row index
                                        footerIndex++;

                                        // Create the new header row XML using footerIndex and append it at sheetData
                                        $('sheetData', sheet).append(`
                                                    <row r="${footerIndex}">
                                                      ${$footerRowCols.map((index, el) => `
                                                        <c t="inlineStr" r="${String.fromCharCode(65 + index)}${footerIndex}" s="2">
                                                          <is>
                                                            <t xml:space="preserve">${$(el).text()}</t>
                                                          </is>
                                                        </c>
                                                      `).get().join('')}
                                                    </row>
                                                  `);
                                    }
                                }
                            }
                        }
                    ],
                    "processing": true,
                    data: data.teacherAttendanceReport,
                    columns: [
                        {
                            title: 'شماره', render: function (data, type, row, meta) {
                                return meta.row + meta.settings._iDisplayStart + 1;
                            }
                        },
                        {title: 'نام کارمند', data: 'first_name'},
                        {title: 'روز هفته', data: 'persian_name'},
                        {title: 'ماه', data: 'month_name'},
                        {title: 'تاریخ مکمل', data: 'date'},
                        {title: 'ساعت درسی', data: 'full_time'},
                        {title: 'حالت حاضری', data: 'as_persian_name'},

                    ],


                });
                $(".h_report_icon").removeClass('fa fa-spinner fa-spin');
                $('#h_present').html(data.present)
                $('#h_absent').html(data.absent)


            },
            error: function () {

            }
        });
    });

当我将导出为EXCEL 文件时，如果日期类似于1400-2-15，则结果符合预期。但如果日期是 1400-02-13，那么它会像 ###### 一样导出。

我希望它像1400-02-13，如果有人知道问题出在哪里，请帮助我！

Answer 1

在 HTML 头部插入 utf-8 元标记：

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

或

<meta charset="utf-8">