问题集录--jquery将json转excel保持

代码如下：
<html>

<head>

    <meta http-equiv="content-type" content="text/html; charset=utf-8">

    <script type="text/javascript" src="jquery.min.js"></script>

    <script type="text/javascript">

        $(document).ready(function(){

            $('#wwo').click(function(){

                var data = {"title":[{"value":"集团", "type":"ROW_HEADER_HEADER", "datatype":"string"}, {"value":"日期", "type":"ROW_HEADER_HEADER", "datatype":"string"}],"data":[[{"value":"好好", "type":"ROW_HEADER"}, {"value":"2015-08-24", "type":"ROW_HEADER"}]]};

                if(data == '')

                    return;

                JSONToExcelConvertor(data.data, "Report", data.title);

            });

        });  

        function JSONToExcelConvertor(JSONData, FileName, ShowLabel) {

            //先转化json

            var arrData = typeof JSONData != 'object' ? JSON.parse(JSONData) : JSONData;  

            var excel = '<table>';      

            //设置表头

            var row = "<tr>";

            for (var i = 0, l = ShowLabel.length; i < l; i++) {

                row += "<td>" + ShowLabel[i].value + '</td>';

            }  

            //换行

            excel += row + "</tr>";  

            //设置数据

            for (var i = 0; i < arrData.length; i++) {

                var row = "<tr>";  

                for (var index in arrData[i]) {

                    var value = arrData[i][index].value === "." ? "" : arrData[i][index].value;

                    row += '<td>' + value + '</td>';

                }  

                excel += row + "</tr>";

            }  

            excel += "</table>";  

            var excelFile = "<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'>";

            excelFile += '<meta http-equiv="content-type" content="application/vnd.ms-excel; charset=UTF-8">';

            excelFile += '<meta http-equiv="content-type" content="application/vnd.ms-excel';

            excelFile += '; charset=UTF-8">';

            excelFile += "<head>";

            excelFile += "<!--[if gte mso 9]>";

            excelFile += "<xml>";

            excelFile += "<x:ExcelWorkbook>";

            excelFile += "<x:ExcelWorksheets>";

            excelFile += "<x:ExcelWorksheet>";

            excelFile += "<x:Name>";

            excelFile += "{worksheet}";

            excelFile += "</x:Name>";

            excelFile += "<x:WorksheetOptions>";

            excelFile += "<x:DisplayGridlines/>";

            excelFile += "</x:WorksheetOptions>";

            excelFile += "</x:ExcelWorksheet>";

            excelFile += "</x:ExcelWorksheets>";

            excelFile += "</x:ExcelWorkbook>";

            excelFile += "</xml>";

            excelFile += "<![endif]-->";

            excelFile += "</head>";

            excelFile += "<body>";

            excelFile += excel;

            excelFile += "</body>";

            excelFile += "</html>";  

            var uri = 'data:application/vnd.ms-excel;charset=utf-8,' + encodeURIComponent(excelFile);  

            var link = document.createElement("a");

            link.href = uri;  

            link.style = "visibility:hidden";

            link.download = FileName + ".xls";  

            document.body.appendChild(link);

            link.click();

            document.body.removeChild(link);

        }

    </script>

</head>

<body>

    <input type="button" id="wwo" value="导出" />

</body>

</html>