HTML的Table导出Excel

调用 exportExcel(tableId, title)即可

//判断浏览器后调用的方法，把table的id传入即可 
const tableToExcel = (function() { 
    var uri = 'data:application/vnd.ms-excel;base64,', 
        template = '' 
            + '' 
            + '{table}',
        base64 = function(s) { return window.btoa(unescape(encodeURIComponent(s)))}, 
        format = function(s, c) { 
            return s.replace(/{(\w+)}/g,function(m, p) { return c[p]; }) 
        } 
    return function(table, name) { 
            var date = new Date();
            var year = date.getFullYear();
            var month = date.getMonth() + 1;
            var strDate = date.getDate();
            if (month >= 1 && month <= 9) {
                month = "0" + month;
            }
            if (strDate >= 0 && strDate <= 9) {
                strDate = "0" + strDate;
            }
            if (!table.nodeType) table = document.getElementById(table) 
            var ctx = { worksheet: name || 'Worksheet', table: table.innerHTML } 
            const a = document.createElement('a');
            a.href =uri + base64(format(template, ctx)) ;
            a.download = name+year+""+month+""+strDate+".xls";
            a.click();
        /* window.location.href = uri + base64(format(template, ctx)) ;*/
    } 
})() 

//获取到类型需要判断当前浏览器需要调用的方法，目前项目中火狐，谷歌，360没有问题 
//win10自带的IE无法导出 
export const exportExcel = function (tableid, fileName) { 
    if(getExplorer()=='ie') 
    { 
            var curTbl = document.getElementById(tableid); 
            var oXL = new ActiveXObject("Excel.Application"); 
            var oWB = oXL.Workbooks.Add(); 
            var xlsheet = oWB.Worksheets(1); 
            var sel = document.body.createTextRange(); 
            sel.moveToElementText(curTbl); 
            sel.select(); 
            sel.execCommand("Copy"); 
            xlsheet.Paste(); 
            oXL.Visible = true; 
    
            try { 
                var fname = oXL.Application.GetSaveAsFilename(fileName+".xls", "Excel Spreadsheets (*.xls), *.xls"); 
            } catch (e) { 
                print("Nested catch caught " + e); 
            } finally { 
                oWB.SaveAs(fname); 
                oWB.Close(savechanges = false); 
                oXL.Quit(); 
                oXL = null; 
                idTmr = window.setInterval("Cleanup();", 1); 
            } 
        
    }else{ 
            tableToExcel(tableid,fileName) 
    } 
} 

function Cleanup() { 
    window.clearInterval(idTmr); 
    CollectGarbage(); 
} 

function getExplorer() { 
    var explorer = window.navigator.userAgent ; 
    //ie 
    if (explorer.indexOf("MSIE") >= 0) { 
        return 'ie'; 
    } 
    //firefox 
    else if (explorer.indexOf("Firefox") >= 0) { 
        return 'Firefox'; 
    } 
    //Chrome 
    else if(explorer.indexOf("Chrome") >= 0){ 
        return 'Chrome'; 
    } 
    //Opera 
    else if(explorer.indexOf("Opera") >= 0){ 
        return 'Opera'; 
    } 
    //Safari 
    else if(explorer.indexOf("Safari") >= 0){ 
        return 'Safari'; 
    } 
}