add：添加导出工具

modules/ibizlab-generator-core/src/main/resources/templ/r7/app_{{apps}}/package.json

@@ -18,6 +18,7 @@
     "dayjs": "^1.10.7",
     "element-plus": "^1.2.0-beta.6",
     "font-awesome": "^4.7.0",
+    "file-saver": "^2.0.5",
     "qs": "^6.10.2",
     "qx-util": "^0.0.10",
     "ramda": "^0.27.1",
@@ -26,7 +27,8 @@
     "vue-global-api": "^0.4.1",
     "vue-router": "^4.0.12",
     "async-validator":"^3.3.0",
-    "moment": "2.24.0"
+    "moment": "2.24.0",
+    "xlsx": "^0.16.9"
   },
   "devDependencies": {
     "@types/node": "^16.11.12",

modules/ibizlab-generator-core/src/main/resources/templ/r7/app_{{apps}}/src/core/utils/export/export.ts

+/**
+ * ExportExcel 对象
+ * 调用 getInstance() 获取实例
+ *
+ * @class ExportExcel
+ */
+export class ExportExcel {
+
+    /**
+     * 获取 ExportExcel 单例对象
+     *
+     * @static
+     * @returns {ExportExcel}
+     * @memberof ExportExcel
+     */
+    public static getInstance(): ExportExcel {
+        if (!ExportExcel.ExportExcel) {
+          ExportExcel.ExportExcel = new ExportExcel();
+        }
+        return this.ExportExcel;
+    }
+
+    /**
+     * 私有化构造器，只能通过getInstance获取
+     * @memberof ExportExcel
+     */
+    private constructor() { }
+
+    /**
+     * 单例变量声明
+     *
+     * @private
+     * @static
+     * @type {ExportExcel}
+     * @memberof ExportExcel
+     */
+    private static ExportExcel: ExportExcel;
+
+    /**
+     * 获取导出excel核心包
+     * 
+     * @memberof ExportExcel
+     */
+    public async exportExcel(){
+        const excel: any = await import("./export2Excel/Export2Excel" as any);
+        return excel;
+    }
+
+}
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modules/ibizlab-generator-core/src/main/resources/templ/r7/app_{{apps}}/src/core/utils/export/export2Excel/Export2Excel.js

+/* eslint-disable */
+import { saveAs } from 'file-saver'
+import XLSX from 'xlsx'
+
+function generateArray(table) {
+  var out = [];
+  var rows = table.querySelectorAll('tr');
+  var ranges = [];
+  for (var R = 0; R < rows.length; ++R) {
+    var outRow = [];
+    var row = rows[R];
+    var columns = row.querySelectorAll('td');
+    for (var C = 0; C < columns.length; ++C) {
+      var cell = columns[C];
+      var colspan = cell.getAttribute('colspan');
+      var rowspan = cell.getAttribute('rowspan');
+      var cellValue = cell.innerText;
+      if (cellValue !== "" && cellValue == +cellValue) cellValue = +cellValue;
+
+      //Skip ranges
+      ranges.forEach(function (range) {
+        if (R >= range.s.r && R <= range.e.r && outRow.length >= range.s.c && outRow.length <= range.e.c) {
+          for (var i = 0; i <= range.e.c - range.s.c; ++i) outRow.push(null);
+        }
+      });
+
+      //Handle Row Span
+      if (rowspan || colspan) {
+        rowspan = rowspan || 1;
+        colspan = colspan || 1;
+        ranges.push({
+          s: {
+            r: R,
+            c: outRow.length
+          },
+          e: {
+            r: R + rowspan - 1,
+            c: outRow.length + colspan - 1
+          }
+        });
+      };
+
+      //Handle Value
+      outRow.push(cellValue !== "" ? cellValue : null);
+
+      //Handle Colspan
+      if (colspan)
+        for (var k = 0; k < colspan - 1; ++k) outRow.push(null);
+    }
+    out.push(outRow);
+  }
+  return [out, ranges];
+};
+
+function datenum(v, date1904) {
+  if (date1904) v += 1462;
+  var epoch = Date.parse(v);
+  return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
+}
+
+function sheet_from_array_of_arrays(data, opts) {
+  var ws = {};
+  var range = {
+    s: {
+      c: 10000000,
+      r: 10000000
+    },
+    e: {
+      c: 0,
+      r: 0
+    }
+  };
+  for (var R = 0; R != data.length; ++R) {
+    for (var C = 0; C != data[R].length; ++C) {
+      if (range.s.r > R) range.s.r = R;
+      if (range.s.c > C) range.s.c = C;
+      if (range.e.r < R) range.e.r = R;
+      if (range.e.c < C) range.e.c = C;
+      var cell = {
+        v: data[R][C]
+      };
+      if (cell.v == null) continue;
+      var cell_ref = XLSX.utils.encode_cell({
+        c: C,
+        r: R
+      });
+
+      if (typeof cell.v === 'number') cell.t = 'n';
+      else if (typeof cell.v === 'boolean') cell.t = 'b';
+      else if (cell.v instanceof Date) {
+        cell.t = 'n';
+        cell.z = XLSX.SSF._table[14];
+        cell.v = datenum(cell.v);
+      } else cell.t = 's';
+
+      ws[cell_ref] = cell;
+    }
+  }
+  if (range.s.c < 10000000) ws['!ref'] = XLSX.utils.encode_range(range);
+  return ws;
+}
+
+function Workbook() {
+  if (!(this instanceof Workbook)) return new Workbook();
+  this.SheetNames = [];
+  this.Sheets = {};
+}
+
+function s2ab(s) {
+  var buf = new ArrayBuffer(s.length);
+  var view = new Uint8Array(buf);
+  for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
+  return buf;
+}
+
+export function export_table_to_excel(id) {
+  var theTable = document.getElementById(id);
+  var oo = generateArray(theTable);
+  var ranges = oo[1];
+
+  /* original data */
+  var data = oo[0];
+  var ws_name = "SheetJS";
+
+  var wb = new Workbook(),
+    ws = sheet_from_array_of_arrays(data);
+
+  /* add ranges to worksheet */
+  // ws['!cols'] = ['apple', 'banan'];
+  ws['!merges'] = ranges;
+
+  /* add worksheet to workbook */
+  wb.SheetNames.push(ws_name);
+  wb.Sheets[ws_name] = ws;
+
+  var wbout = XLSX.write(wb, {
+    bookType: 'xlsx',
+    bookSST: false,
+    type: 'binary'
+  });
+
+  saveAs(new Blob([s2ab(wbout)], {
+    type: "application/octet-stream"
+  }), "test.xlsx")
+}
+
+export function export_json_to_excel({
+  multiHeader = [],
+  header,
+  data,
+  filename,
+  merges = [],
+  autoWidth = true,
+  bookType = 'xlsx'
+} = {}) {
+  /* original data */
+  filename = filename || 'excel-list'
+  data = [...data]
+  data.unshift(header);
+
+  for (let i = multiHeader.length - 1; i > -1; i--) {
+    data.unshift(multiHeader[i])
+  }
+
+  var ws_name = "SheetJS";
+  var wb = new Workbook(),
+    ws = sheet_from_array_of_arrays(data);
+
+  if (merges.length > 0) {
+    if (!ws['!merges']) ws['!merges'] = [];
+    merges.forEach(item => {
+      ws['!merges'].push(XLSX.utils.decode_range(item))
+    })
+  }
+
+  if (autoWidth) {
+    /*设置worksheet每列的最大宽度*/
+    const colWidth = data.map(row => row.map(val => {
+      /*先判断是否为null/undefined*/
+      if (val == null) {
+        return {
+          'wch': 10
+        };
+      }
+      /*再判断是否为中文*/
+      else if (val.toString().charCodeAt(0) > 255) {
+        return {
+          'wch': val.toString().length * 2
+        };
+      } else {
+        return {
+          'wch': val.toString().length
+        };
+      }
+    }))
+    /*以第一行为初始值*/
+    let result = colWidth[0];
+    for (let i = 1; i < colWidth.length; i++) {
+      for (let j = 0; j < colWidth[i].length; j++) {
+        if (result[j]['wch'] < colWidth[i][j]['wch']) {
+          result[j]['wch'] = colWidth[i][j]['wch'];
+        }
+      }
+    }
+    ws['!cols'] = result;
+  }
+
+  /* add worksheet to workbook */
+  wb.SheetNames.push(ws_name);
+  wb.Sheets[ws_name] = ws;
+
+  var wbout = XLSX.write(wb, {
+    bookType: bookType,
+    bookSST: false,
+    type: 'binary'
+  });
+  saveAs(new Blob([s2ab(wbout)], {
+    type: "application/octet-stream"
+  }), `${filename}.${bookType}`);
+}

modules/ibizlab-generator-core/src/main/resources/templ/r7/app_{{apps}}/src/core/utils/export/index.ts

+export { ExportExcel } from './export';
\ No newline at end of file

modules/ibizlab-generator-core/src/main/resources/templ/r7/app_{{apps}}/src/core/utils/index.ts

 export * from './util';
 export * from './ui';
-export * from './net';
+export * from './net';
\ No newline at end of file
+export * from './export';
\ No newline at end of file