export as .xls file not work when large data

问题

I am using the javascript code for export html table to .xls file.Its work in crome and when data is not large.But when data is large then it shows me error like

The code which i have used for export the table as .xls file is as below:

function exportDiv() {
    //working on crome perfectly       
        var dt = new Date();
        var day = dt.getDate();
        var month = dt.getMonth() + 1;
        var year = dt.getFullYear();
        var hour = dt.getHours();
        var mins = dt.getMinutes();
        var postfix = day + "." + month + "." + year + "_" + hour + "." + mins;
        var a = document.createElement('a');
        var data_type = 'data:application/vnd.ms-excel';
        var table_div = document.getElementById('tbl-1');
        var table_html = table_div.outerHTML.replace(/ /g, '%20');
        a.href = data_type + ', ' + table_html;
        a.download = 'exported_table_' + postfix + '.xls';
        a.click();
        e.preventDefault();

}

I have also sufficient 4 gb ram so i think its not memory limit problem.

Can you please help me for how to export large data? Edit: I ahve used this way also

 var table_html=encodeURIComponent(table_div.outerHTML);

But still same error come.

回答1:

Most likely you've hit the 2 MB URL limit in Chrome. You can read about it here - issue link. I suggest you try your app in Firefox, if it works, then that is the issue.

回答2:

excel sheet has got a character limit for 32767 characters similar to that of an excel cell.

for reference check this link : http://office.microsoft.com/en-in/excel-help/excel-specifications-and-limits-HP010073849.aspx

回答3:

I have called the tableToexcel function on button click like as below and it is working fine in firefix.

<a id="dlink"  style="display:none;"></a>

    var tableToExcel = (function () {
            var uri = 'data:application/vnd.ms-excel;base64,'
            , template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>'
            , 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, filename) {
                if (!table.nodeType) table = document.getElementById(table)
                var ctx = { worksheet: name || 'Worksheet', table: table.innerHTML }

                document.getElementById("dlink").href = uri + base64(format(template, ctx));
                document.getElementById("dlink").download = filename;
                document.getElementById("dlink").click();

            }
        })();

来源：https://stackoverflow.com/questions/19401638/export-as-xls-file-not-work-when-large-data

标签

javascript

xls