锚标记下载属性不起作用:Chrome 35.0.1916.114中的错误

时间:2014-05-22 19:57:57

标签: javascript jquery html html5 google-chrome

我正在尝试refer to this code我们在点击链接时下载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,下载的文件在Chrome v35.0.1916.114中没有扩展名的download,其中一种解决方法是将数据更改为:application / csv to data:text / csv,但这只会有助于获取下载文件中的扩展名正确,即现在下载为download.csv

仍然存在下载属性的问题。我想将我的文件命名为export.csv,但它仍然会给我download.csv

6 个答案:

答案 0 :(得分:29)

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'
});

到此

// 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
});

它应该有效!

答案 1 :(得分:9)

这是问题#377860中报告的Chrome 35中的错误。

更新:此错误已合并到issue #373182。您可以点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。

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

答案 2 :(得分:2)

对我来说工作:

var content = "some content";
var link = document.createElement('a');
var blob = new Blob(["\ufeff", content]);
var url = URL.createObjectURL(blob);
link.href = url;
link.setAttribute('download', 'file.csv');
link.click();

答案 3 :(得分:1)

这对我有用(在Chrome和Firefox中)。我正在从表中构建一个xls文件。

  function downloadInnerHtml(filename,elId,mimeType){
    var elHtml='<table border="1">'+document.getElementById(elId).innerHTML+'</table>';
    var link=document.createElement('a');
    mimeType=mimeType || 'application/xls';

    var blob=new Blob([elHtml],{type:mimeType});
    var url=URL.createObjectURL(blob);
    link.href=url;

    link.setAttribute('download', filename);
    link.innerHTML = "Export to CSV";
    document.body.appendChild(link);
    link.click();
  }

  $(document).on("click","#exportButton",function(){
    var date=new Date();
    var mm=date.getMonth()+1;
    var dd=date.getDate();
    var yy=date.getFullYear();
    var timeStamp=yy+""+((mm<10)?"0"+mm:mm)+""+((dd<10)?"0"+dd:dd);
    var fileName=timeStamp+'_Employees.xls';
    downloadInnerHtml(fileName,'mainEmployeeTable','application/xls');
  });

希望能帮助别人......

- 查

答案 4 :(得分:0)

当我尝试使用此代码时,我无法在IE中获得结果,此代码仅迭代td,它将跳过表中存在的任何th。我修改了代码以解决我遇到的两个问题:

$(document).ready(function () {
    function exportTableToCSV($table, filename) {

            var $rows = $table.find('tr'),
            tmpColDelim = String.fromCharCode(11),
            tmpHeadDelim = String.fromCharCode(11),
            tmpRowDelim = String.fromCharCode(0),
            colDelim = '","',
            headDelim = '","',
            rowDelim = '"\r\n"',

            csv = '"' + $rows.map(function (i, row) {
                var $row = $(row),
                $cols = $row.find('td');
                $heads = $row.find('th');

                var c = $heads.map(function (k, head) {
                    var $head = $(head),
                    text = $head.text();
                    return text.replace(/"/g, '""');
                }).get().join(tmpHeadDelim);

                var d = $cols.map(function (j, col) {
                    var $col = $(col),
                    text = $col.text();
                    return text.replace(/"/g, '""');
                }).get().join(tmpColDelim);

            return (c+d);

        }).get().join(tmpRowDelim)
            .split(tmpRowDelim).join(rowDelim)
            .split(tmpHeadDelim).join(headDelim)
            .split(tmpColDelim).join(colDelim) + '"';


        var ua = window.navigator.userAgent;
        var msie = ua.indexOf("MSIE ");

        // if Internet Explorer (10+)
        if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./)) {
            var blob = new Blob([decodeURIComponent(csv)], {
                    type: 'text/csv;charset=utf8'
            });
            window.navigator.msSaveBlob(blob, filename);
        }
        else {
            var link = document.createElement('a');
            var blob = new Blob([csv],{type:'text/csv;charset=utf8'});
            var url = URL.createObjectURL(blob);
            link.href = url;
            link.setAttribute('download', filename);
            document.body.appendChild(link);
            link.click();
        }
    }

    $("#fnExcelReport").on('click', function (event) {
        var args = [$('#tableContent'), 'Report.csv'];
        exportTableToCSV.apply(this, args);
    });
});

CodePen

答案 5 :(得分:-1)

使用字符串中的字符串添加标记信息附加锚标记然后追加,它适用于我的谷歌浏览器