fix : 修复分摊明细/汇总导出

src/utils/export-excel.js

@@ -0,0 +1,113 @@
+import {utils} from "xlsx";
+import FileSaver from 'file-saver'
+import XLSX from "xlsx-style-vite";
+
+
+export function exportExcel($table, row, excelName) {
+  //如果导出后多出空白行则修改rowspan，否则可不用
+  // var tds = document.querySelectorAll(".el-table__footer td");
+  // tds.forEach(td => td.setAttribute("rowspan", "1"));
+
+  //从el-table表生成工作簿对象
+  //使用原始的格式,保留表格中的格式如%、小数末尾的0等
+  let workbook = utils.table_to_book($table, {
+    raw: true
+  });
+  //列宽，需要导出的表格有多少列这里的i就小于多少
+  let keys = Object.keys(row).length
+  for (let i = 1; i < (5 + (keys - 5) * 5); i++) {
+    workbook.Sheets.Sheet1["!cols"].push({wpx: 100});
+  }
+  //设置单元格样式
+  for (const key in workbook.Sheets.Sheet1) {
+    if (
+      key !== "!cols" &&
+      key !== "!fullref" &&
+      key !== "!merges" &&
+      key !== "!ref" &&
+      key !== "!rows"
+    ) {
+      //这里的s就是具体的样式，如果想设置不一样的样式可以看xlsx-style文档
+      workbook.Sheets.Sheet1[key].s = {
+        //边框
+        border: {
+          top: {style: "thin"},
+          bottom: {style: "thin"},
+          left: {style: "thin",},
+          right: {style: "thin",}
+        },
+        //对齐
+        alignment: {
+          horizontal: "center",
+          vertical: "center",
+          wrapText: true
+        }
+      };
+    }
+  }
+  //修改合并单元格样式
+  let arr = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N",
+    "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"];
+  //由于导出时合并单元格只识别左上角的单元格，合并单元格中其他单元格
+  //并不会存在，所以需要识别合并单元格中除左上角单元格外的单元格并添加
+  //带样式的单元格到其中，不理解可以看四中的第2点。
+  try {
+
+    for (let item of workbook.Sheets.Sheet1["!merges"]) {
+      let style = {
+        border: {
+          top: {style: "thin"},
+          bottom: {style: "thin"},
+          left: {style: "thin",},
+          right: {style: "thin",}
+        },
+        alignment: {
+          horizontal: "center",
+          vertical: "center",
+          wrapText: true
+        }
+      };
+      let merge_s = {t: "s", v: "", s: style};
+      if (item.s.c === item.e.c) {
+        //纵向合并，其中c为字母r为数字
+        let star = item.s.r;
+        let end = item.e.r;
+        for (let i = star + 1; i <= end; i++) {
+          workbook.Sheets.Sheet1[arr[item.s.c] + (i + 1)] = merge_s;
+        }
+      } else {
+        //横向合并
+        let star = item.s.c;
+        let end = item.e.c;
+        for (let i = star; i < end; i++) {
+          workbook.Sheets.Sheet1[arr[i + 1] + Number(item.s.r + 1)] = merge_s;
+        }
+      }
+    }
+  } catch (e) {
+
+  }
+
+  //将表格数据中的字符串转ArrayBuffer
+  function s2ab(s) {
+    let buf = new ArrayBuffer(s.length);
+    let view = new Uint8Array(buf);
+    for (let i = 0; i !== s.length; ++i) view[i] = s.charCodeAt(i) & 0xff;
+    return buf;
+  }
+
+  //这里的属性可以参考xlsx-style文档
+  let wbout = XLSX.write(workbook, {
+    bookType: "xlsx",
+    bookSST: false,
+    type: "binary"
+  });
+  try {
+    FileSaver.saveAs(
+      new Blob([s2ab(wbout)], {type: "application/octet-stream"}),
+      `${excelName}.xlsx`
+    );
+  } catch (e) {
+    if (typeof console !== "undefined") console.log(e, wbout);
+  }
+}