该js文件支持三级表头的导出。
引入该js文件,调用grid2Excel(grid, fileName)即可。
- 新建导出按钮
new Ext.create('Ext.button.Button',{
xtype:'button',
iconCls:'excel',
type: 'excel',
text:'保存为Excel',
handler:function() {
//grid 为Extjs grid对象
//"导出文件名" 为导出的Excel文件的名称
grid2Excel(grid,"项目授权列表");
}
})
- 点击后调用该函数即可。
列出详细代码:
/**
*
* function grid2Excel(grid,filename)
* @param grid Extjs grid panel
* @param filename Excel 文件名称
*
* **/
(function(){
function getExplorer() {
var explorer = window.navigator.userAgent ;
//ie
if (explorer.indexOf("MSIE") >= 0) {
return 'ie';
}
//firefox
else if (explorer.indexOf("Firefox") >= 0) {
return 'Firefox';
}
//Chrome
else if(explorer.indexOf("Chrome") >= 0){
return 'Chrome';
}
//Opera
else if(explorer.indexOf("Opera") >= 0){
return 'Opera';
}
//Safari
else if(explorer.indexOf("Safari") >= 0){
return 'Safari';
}
}
function export_excel_ie(tableStr, fileName) {//整个表格拷贝到EXCEL中
if(getExplorer()=='ie')
{
var oXL = new ActiveXObject("Excel.Application");
/*
* 设置边框, 1表示最细边框,2表示细边框,4表示粗线。
*/
//oXL.Selection.Borders.Weight = 4;
/*
* 设置边框线 1 实线, -4115 虚线, 4 点划相间线, 5 划线后跟两个点, -4118 点式线, -4119 双线。
*/
//oXL.Selection.Borders.LineStyle = 1;
var el4table = document.createElement("div");
el4table.innerHTML = tableStr;
//创建AX对象excel
var oWB = oXL.Workbooks.Add();
//获取workbook对象
var xlsheet = oWB.Worksheets(1);
//激活当前sheet
var sel = document.body.createTextRange();
sel.moveToElementText(el4table);
//把表格中的内容移到TextRange中
sel.select;
//全选TextRange中内容
sel.execCommand("Copy");
//复制TextRange中内容
xlsheet.Paste();
//粘贴到活动的EXCEL中
oXL.Visible = true;
//设置excel可见属性
try {
var fname = oXL.Application.GetSaveAsFilename("Excel.xls", "Excel Spreadsheets (*.xls), *.xls");
} catch (e) {
print("Nested catch caught " + e);
} finally {
oWB.SaveAs(fname);
oWB.Close(savechanges = false);
//xls.visible = false;
oXL.Quit();
oXL = null;
//结束excel进程,退出完成
//window.setInterval("Cleanup();",1);
idTmr = window.setInterval("Cleanup();", 1);
}
}
else
{
tableToExcel(tableStr, fileName);
}
}
function Cleanup() {
window.clearInterval(idTmr);
CollectGarbage();
}
var Base64 = (function() {
// private property
var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
// private method for UTF-8 encoding
function utf8Encode(string) {
string = string.replace(/\r\n/g,"\n");
var utftext = "";
for (var n = 0; n < string.length; n++) {
var c = string.charCodeAt(n);
if (c < 128) {
utftext += String.fromCharCode(c);
}
else if((c > 127) && (c < 2048)) {
utftext += String.fromCharCode((c >> 6) | 192);
utftext += String.fromCharCode((c & 63) | 128);
}
else {
utftext += String.fromCharCode((c >> 12) | 224);
utftext += String.fromCharCode(((c >> 6) & 63) | 128);
utftext += String.fromCharCode((c & 63) | 128);
}
}
return utftext;
}
// public method for encoding
return {
//encode : (typeof btoa == 'function') ? function(input) { return btoa(input); } : function (input) {
encode : function (input) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
input = utf8Encode(input);
while (i < input.length) {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output +
keyStr.charAt(enc1) + keyStr.charAt(enc2) +
keyStr.charAt(enc3) + keyStr.charAt(enc4);
}
return output;
}
};
})();
var format = function(s, c) { return s.replace(/{(\w+)}/g, function(m, p) { return c[p]; }) };
var tableToExcel = function(table, fileName) {
var uri = 'data:application/vnd.ms-excel;base64,'
,fileName = fileName || 'excelexport'
, template = '<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"><head><meta name="renderer" content="webkit"><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>';
var ctx = {worksheet:'Worksheet', table: table};
var a = document.createElement('a');
document.body.appendChild(a);
a.hreflang = 'zh';
a.charset = 'utf8';
a.type="application/vnd.ms-excel";
a.href = uri + Base64.encode(format(template,ctx));
a.target = '_blank';
a.download = fileName + '.xls';
a.tableBorder = 1;
a.click();
};
window.grid2Excel = function(grid, fileName) {
// console.log(grid);
var columns = grid.initialConfig.columns|| [],
store = grid.getStore(),
headLevel1 = [],headLevel2 = [], headLevel3 = [], headLevel = 1,isGroup = false, isGroup3 = false,
dataIndex =[],tableStr = '<table border="1" bordercolor="#000"><thead>{thead}</thead><tbody>{tbody}</tbody></table>';
var blankColumn = 0;
var blankColumn3 = 0;
var ifWithCheckOrNumFirst;
columns.forEach(function(column) {
//说明第一列是checkbox或者是序号列,是有headerId的,如果不是headerId
//console.log(!column.headerId);
if(column.headerId){
// console.log("序号列");
ifWithCheckOrNumFirst = true;
} else {
//带合并单元格的时候,那一大列是没有dataindex的,所以会false
if(!column.dataIndex) {
blankColumn += 1;
isGroup = true;
var items = column.columns ||[];
items.forEach(function(column3) {
if (!column3.dataIndex) {
blankColumn3 += 1; //分为了三级表头的数目
isGroup3 = true; //三级表头
return false;
}
});
return false;
}
}
});
if(isGroup) {
headLevel = 2; //只支持二级表头
if (isGroup3) {
headLevel = 3;
}
}
// console.log("------------表头: " + headLevel);
// console.log("三级表头: " + blankColumn3);
var indexen = 0;
// console.log("长度1:" + headLevel1.length);
columns.forEach(function(column) {
// console.log(column.dataIndex);
//说明不需要横向合并单元格的时候,
if(column.dataIndex) {
// console.log(column);
column.colspan = 1;
//有横向合并单元格的话,这个纵向合并就会变多。是2层表头的话,这个rowspan就是2.其实不管他有没有横向合并这个数取过来就对
if (headLevel == 3) {
column.rowspan = headLevel;
} else if (headLevel == 2) {
column.rowspan = headLevel;
} else {
column.rowspan = 1;
}
headLevel1.push(column);
dataIndex.push(column);
}else {
// console.log("长度x333:" + headLevel);
//不是横向合并的单元格,还有可能是第一列是checkbox或者是序号所以需要判断一下,如果是checkbox或者序号,则不push到数组里
if (ifWithCheckOrNumFirst) {
} else {
var items = column.columns ||[];
headLevel1.push(column);
items.forEach(function(item2) {
// console.log("二级 dataindex: " + item2.dataIndex);
if (item2.dataIndex) {//二级表头
column.colspan = items.length;
column.rowspan = 1;
item2.colspan = 1;
if (headLevel == 3) {//三级表头下 如果二级表头下面没有再分,二级表头占两行
item2.rowspan = 2;
} else {
item2.rowspan = 1;
}
headLevel2.push(item2);
dataIndex.push(item2);
} else {
var items3 = item2.columns ||[];
headLevel2.push(item2);
items3.forEach(function(item33) {
if (item33.dataIndex) {
item2.colspan = items3.length;//二级表头的长度
column.colspan = items3.length + items.length + blankColumn3; //一级表头的长度
item2.rowspan = 1;
item33.colspan = 1;
item33.rowspan = 1;
headLevel3.push(item33);
dataIndex.push(item33);
}
});
}
});
}
}
});
var headLevel1Str = '<tr>';
headLevel1.forEach(function(head) {
// console.log(head.header);
if (head.dataIndex != 'operate') {
headLevel1Str += '<th colspan = "'+head.colspan+
'" rowspan="'+head.rowspan+'">'+head.header+'</th>';
}
});
headLevel1Str += '</tr>';
var headLevel2Str = '';
if(headLevel2.length > 0) {
headLevel2Str += '<tr>';
headLevel2.forEach(function(head) {
if (head.dataIndex != 'operate') {
headLevel2Str += '<th colspan = "'+head.colspan+
'" rowspan="'+head.rowspan+'">'+head.header+'</th>';
}
});
headLevel2Str += '</tr>'
}
var headLevel3Str = '';
if(headLevel3.length > 0) {
headLevel3Str += '<tr>';
headLevel3.forEach(function(head) {
if (head.dataIndex != 'operate') {
headLevel3Str += '<th colspan = "'+head.colspan+
'" rowspan="'+head.rowspan+'">'+head.header+'</th>';
}
});
headLevel3Str += '</tr>'
}
var theadStr = headLevel1Str + headLevel2Str + headLevel3Str,
tbodyStr = '',defRenderer = function(value) {
return value;
};
store.each(function(r) {
tbodyStr += '<tr>';
dataIndex.forEach(function(c) {
if (c.dataIndex != 'operate') {
var renderere = c.renderer || defRenderer;
if (renderere.call(r,r.get(c.dataIndex))) {
tbodyStr += '<td>'+renderere.call(r,r.get(c.dataIndex)) + "" +'</td>' ;
} else {
tbodyStr += '<td>'+ " " + "" +'</td>' ;
}
tbodyStr += '<td>'+renderere.call(r,r.get(c.dataIndex)) + "" +'</td>' ;
// console.log("test: " + renderere.call(r,r.get(c.dataIndex)));
}
});
tbodyStr +='</tr>'
});
tableStr = format(tableStr,{
thead:theadStr,
tbody:tbodyStr
});
// console.log(tableStr);
export_excel_ie(tableStr,fileName);
}
})()
注意:
二级和三级datagrid的有合并单元格,如果数据列表中有序号的不能导出。
解决办法:
1. 序号列
有序号列的必须这样写
{ header: '', xtype: 'rownumberer',dataIndex:'operate', width: 60, align: 'center', sortable: false },
序号列的dataIndex为operate,在导出函数中如果包含这个的不会导出(筛选)。
而这样写会认为是有序号的,不能导出有合并单元格的列表。
new Ext.grid.RowNumberer({ header: '序号', width:50}),
- 复选框列
checkBox = Ext.create('Ext.selection.CheckboxModel', {
mode : "SIMPLE",
checkOnly : true
});
grid = Ext.create('Ext.grid.GridPanel', {
renderTo : 'gridDiv',
title : '人员考核列表',
sripeRows : true,
store : store,
// bodyStyle: 'width:100%',
viewConfig : {
forceFit : true
},
selModel : checkBox,//设置复选框
}