锚标记下载属性不起作用:Chrome 35.0.1916.114中的错误

Question

我正在尝试参考此代码,我们正在点击链接下载CSV文件.

$(document).ready(function () {

    function exportTableToCSV($table, filename) {

        var $rows = $table.find('tr:has(td)'),

            // Temporary delimiter characters unlikely to be typed by keyboard
            // This is to avoid accidentally splitting the actual contents
            tmpColDelim = String.fromCharCode(11), // vertical tab character
            tmpRowDelim = String.fromCharCode(0), // null character

            // actual delimiter characters for CSV format
            colDelim = '","',
            rowDelim = '"\r\n"',

            // Grab text from table into CSV formatted string
            csv = '"' + $rows.map(function (i, row) {
                var $row = $(row),
                    $cols = $row.find('td');

                return $cols.map(function (j, col) {
                    var $col = $(col),
                        text = $col.text();

                    return text.replace('"', '""'); // escape double quotes

                }).get().join(tmpColDelim);

            }).get().join(tmpRowDelim)
                .split(tmpRowDelim).join(rowDelim)
                .split(tmpColDelim).join(colDelim) + '"',

            // Data URI
            csvData = 'data:application/csv;charset=utf-8,' + encodeURIComponent(csv);

        $(this)
            .attr({
            'download': filename,
                'href': csvData,
                'target': '_blank'
        });
    }

    // This must be a hyperlink
    $(".export").on('click', function (event) {
        // CSV
        exportTableToCSV.apply(this, [$('#dvData>table'), 'export.csv']);

        // IF CSV, don't do event.preventDefault() or return false
        // We actually need this to be a typical hyperlink
    });
});

但不知何故,下载的文件download在Chrome v35.0.1916.114中被命名为无扩展名,一种解决方法是将数据更改为:application/csv to data:text/csv,但这只有助于在下载的文件中获得正确的扩展名,即它现在下载为download.csv.

下载属性的问题仍然存在.我想把我的文件命名为export.csv,但它仍然给了我download.csv.

Answer 1

所以你应该改变这个:

// Data URI
csvData = 'data:application/csv;charset=utf-8,' + encodeURIComponent(csv);

$(this)
    .attr({
    'download': filename,
        'href': csvData,
        'target': '_blank'
});

对此

// Data URI
//csvData = 'data:text/csv;charset=utf-8,' + encodeURIComponent(csv), //old way
blob = new Blob([csv], { type: 'text/csv' }); //new way
var csvUrl = URL.createObjectURL(blob);

$(this)
.attr({
    'download': filename,
    'href': csvUrl
});

它应该工作!

Answer 2

这是问题#377860中报告的Chrome 35中的错误.

更新:此错误已合并到问题#373182.您可以单击星号告诉开发人员您认为此问题应该得到修复,并获得更改通知.

通常铬团队每两周发布一次更新,因此您可以很快得到修复,因为这被标记为Pri-1,我认为这意味着最高优先级.