转自:http://blog.csdn.net/educast/article/details/52775559
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] + '</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] === "." ? "" : arrData[i][index];
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);
}
//var datas=[];
//var grid=getCmp("grid");
//var grid_data = grid.getStore();
//for(var i= 0 ;i< grid_data.data.length;i++){ //获取extjs grid的数据
//var row = grid_data.getAt(i).data;
//datas.push({"列头1":row["OrgName"],...});
//}
var datas=[{key:value}......];
JSONToExcelConvertor(datas,"汇总",["列头1","头2","头3"]);
3252DFE9-8E3E-4CC5-9414-F05F2E6447DA From: http://www.cnblogs.com/xuejianxiyang/p/7827894.html