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vue export2Excel 怎么导出一个 excel 同时里面有两个 sheet?

  •  1
     
  •   gaocc · 2019-05-10 11:39:06 +08:00 · 4603 次点击
    这是一个创建于 1784 天前的主题,其中的信息可能已经有所发展或是发生改变。

    如题,现在调用的是 js 里的 export_json_to_excel 这个方法,可以实现导出一个 excel 一个 sheet。

    js 源码如下: /* eslint-disable */ import { saveAs } from 'file-saver'

    import XLSX from 'xlsx'

    // require('./Blob');

    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);
    console.log('a')
    var oo = generateArray(theTable);
    var ranges = oo[1];
    
    /* original data */
    var data = oo[0];
    var ws_name = "SheetJS";
    console.log(data);
    
    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(th, jsonData, sheetName, defaultTitle) {

    /* original data */
    
    var data = jsonData;
    data.unshift(th);
    var ws_name = sheetName || 'sheet1';
    
    var wb = new Workbook(), ws = sheet_from_array_of_arrays(data);
    
    
    /* 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'});
    var title = defaultTitle || '列表'
    saveAs(new Blob([s2ab(wbout)], {type: "application/octet-stream"}), title + ".xlsx")
    

    }

    2 条回复    2019-05-13 10:58:02 +08:00
    gaocc
        1
    gaocc  
    OP
       2019-05-10 11:40:10 +08:00
    在线等哦,v2 大神求带带。源代码逻辑没天看太明白。
    jifengg
        2
    jifengg  
       2019-05-13 10:58:02 +08:00
    export_json_to_excel 里的 wb.Sheets[ws_name] = ws;
    如果你需要导出多个 sheet,这里添加多个 sheet 就行。同理,你应该传一个 jsonData 数组,在方法里遍历添加到 sheets
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