Merge branch 'master' of https://gitee.com/dmc_qq/etc-project

src/utils/Export2Excel.js

@@ -0,0 +1,222 @@
+/* eslint-disable */
+import {
+    saveAs
+} from 'file-saver';
+import * as 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 = "Sheet1";
+    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}`);
+}

src/views/system/home/Home.vue

@@ -30,7 +30,7 @@
 
 <script>
 
-// import XLSX from "xlsx";
+import * as XLSX from "xlsx";
 
 export default {
   data() {
@@ -97,7 +97,7 @@ export default {
         this.$message.warning("暂无数据导出");
         return false;
       }
-      import("@/vendor/Export2Excel").then(excel => {
+      import("@/utils/Export2Excel").then(excel => {
         //导出表格头部内容（要与下面字段对照）
         const tHeader = ["姓名", "年龄"];
         const filterVal = ["name", "age"];