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>