纯js前端导出excel
2020-08-21 本文已影响0人
张跑跑学代码
方法一：优点：能够完全保留table格式 缺点：xls文件打开时提示“文件格式与扩展名不匹配”
table2excel.js
/*
* jQuery table2excel - v1.1.1
* jQuery plugin to export an .xls file in browser from an HTML table
* https://github.com/rainabba/jquery-table2excel
*
* Made by rainabba
* Under MIT License
*/
! function(a, b, c, d) {
function e(b, c) {
this.element = b, this.settings = a.extend({}, k, c), this._defaults = k, this._name = j, this.init()
}
function f(a) {
return a.filename ? a.filename : "table2excel"
}
function g(a) {
var b = /(\s+alt\s*=\s*"([^"]*)"|\s+alt\s*=\s*'([^']*)')/i;
return a.replace(/<img[^>]*>/gi, function(a) {
var c = b.exec(a);
return null !== c && c.length >= 2 ? c[2] : ""
})
}
function h(a) {
return a.replace(/<a[^>]*>|<\/a>/gi, "")
}
function i(a) {
var b = /(\s+value\s*=\s*"([^"]*)"|\s+value\s*=\s*'([^']*)')/i;
return a.replace(/<input[^>]*>|<\/input>/gi, function(a) {
var c = b.exec(a);
return null !== c && c.length >= 2 ? c[2] : ""
})
}
var j = "table2excel",
k = {
exclude: ".noExl",
name: "Table2Excel",
filename: "table2excel",
fileext: ".xls",
exclude_img: !0,
exclude_links: !0,
exclude_inputs: !0
};
e.prototype = {
init: function() {
var b = this;
b.template = {
head: '<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"><meta http-equiv="content-type" content="application/vnd.ms-excel; charset=UTF-8"><head>\x3c!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets>',
sheet: {
head: "<x:ExcelWorksheet><x:Name>",
tail: "</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet>"
},
mid: "</x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--\x3e</head><body>",
table: {
head: "<table>",
tail: "</table>"
},
foot: "</body></html>"
}, b.tableRows = [], a(b.element).each(function(c, d) {
var e = "";
a(d).find("tr").not(b.settings.exclude).each(function(c, d) {
e += "<tr>", a(d).find("td,th").not(b.settings.exclude).each(function(c, d) {
var f = {
rows: a(this).attr("rowspan"),
cols: a(this).attr("colspan"),
flag: a(d).find(b.settings.exclude)
};
f.flag.length > 0 ? e += "<td> </td>" : f.rows & f.cols ? e += "<td>" + a(d).html() + "</td>" : (e += "<td", f.rows > 0 && (e += " rowspan='" + f.rows + "' "), f.cols > 0 && (e += " colspan='" + f.cols + "' "), e += "/>" + a(d).html() + "</td>")
}), e += "</tr>", console.log(e)
}), b.settings.exclude_img && (e = g(e)), b.settings.exclude_links && (e = h(e)), b.settings.exclude_inputs && (e = i(e)), b.tableRows.push(e)
}), b.tableToExcel(b.tableRows, b.settings.name, b.settings.sheetName)
},
tableToExcel: function(d, e, g) {
var h, i, j, k = this,
l = "";
if(k.format = function(a, b) {
return a.replace(/{(\w+)}/g, function(a, c) {
return b[c]
})
}, g = void 0 === g ? "Sheet" : g, k.ctx = {
worksheet: e || "Worksheet",
table: d,
sheetName: g
}, l = k.template.head, a.isArray(d))
for(h in d) l += k.template.sheet.head + g + h + k.template.sheet.tail;
if(l += k.template.mid, a.isArray(d))
for(h in d) l += k.template.table.head + "{table" + h + "}" + k.template.table.tail;
l += k.template.foot;
for(h in d) k.ctx["table" + h] = d[h];
if(delete k.ctx.table, !c.documentMode) {
var m = new Blob([k.format(l, k.ctx)], {
type: "application/vnd.ms-excel"
});
b.URL = b.URL || b.webkitURL, i = b.URL.createObjectURL(m), j = c.createElement("a"), j.download = f(k.settings), j.href = i, c.body.appendChild(j), j.click(), c.body.removeChild(j)
} else if("undefined" != typeof Blob) {
l = k.format(l, k.ctx), l = [l];
var n = new Blob(l, {
type: "text/html"
});
b.navigator.msSaveBlob(n, f(k.settings))
} else txtArea1.document.open("text/html", "replace"), txtArea1.document.write(k.format(l, k.ctx)), txtArea1.document.close(), txtArea1.focus(), sa = txtArea1.document.execCommand("SaveAs", !0, f(k.settings));
return !0
}
}, a.fn[j] = function(b) {
var c = this;
return c.each(function() {
a.data(c, "plugin_" + j) || a.data(c, "plugin_" + j, new e(this, b))
}), c
}
}(jQuery, window, document);
var idTmr;
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 method1(tableid,name) { //整个表格拷贝到EXCEL中
if(getExplorer() == 'ie') {
var curTbl = document.getElementById(tableid);
var oXL = new ActiveXObject("Excel.Application");
//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(curTbl);
//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(tableid,name)
}
}
function Cleanup() {
window.clearInterval(idTmr);
CollectGarbage();
}
var tableToExcel = (function() {
var uri = 'data:application/vnd.ms-excel;base64,',
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><!--[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>',
base64 = function(s) {
return window.btoa(unescape(encodeURIComponent(s)))
},
format = function(s, c) {
return s.replace(/{(\w+)}/g,
function(m, p) {
return c[p];
})
}
return function(table, name) {
if(name.length == 0){name='导出Excel信息';}
console.log(table)
if(!table.nodeType) table = document.getElementById(table)
console.log(table)
var ctx = {
worksheet: name || 'Worksheet',
table: table.innerHTML
}
//传name自定义名称
var downloadLink = document.createElement("A");
downloadLink.href = uri + base64(format(template, ctx));
downloadLink.download = name+ new Date().formatime("yyyy_MM_dd_HH_mm_ss") +'.xls';
downloadLink.target = '_blank';
document.body.appendChild(downloadLink);
downloadLink.click();
document.body.removeChild(downloadLink);
//传name自定义名称
// window.location.href = uri + base64(format(template, ctx))
}
})()
Date.prototype.formatime=function(pattern){//日期格式化
var returnValue=pattern;
var formatime={
"y+":this.getFullYear(),
"M+":this.getMonth()+1,
"d+":this.getDate(),
"H+":this.getHours(),
"m+":this.getMinutes(),
"s+":this.getSeconds(),
"S":this.getMilliseconds(),
"h+":(this.getHours()%12),
"a":(this.getHours()/12)<=1?"AM":"PM"
};
for(var key in formatime){
var regExp=new RegExp("("+key+")");
if(regExp.test(returnValue)){
var zero="";
for(var i=0;i<RegExp.$1.length;i++){
zero+="0"
}
var replacement=RegExp.$1.length==1?formatime[key]:(zero+formatime[key]).substring(((""+formatime[key]).length));
returnValue=returnValue.replace(RegExp.$1,replacement)
}
}
return returnValue
};
<li onclick="method1(exceldown,'xxx数据')"></li>
<div id='exceldown'>
<table>
</table>
</div>
<script src="{% static 'xxx/table2excel.js' %}" type="text/javascript"></script>
方法二：优点：文件打开时没有提示 缺点：不保留table格式，并且会将百分数变为小数
<li onclick="toExcel('xxx数据');"></li>
<script src="{% static 'build/js/xlsx.core.min.js' %}" type="text/javascript"></script>
<script>
//导出excel
function toExcel(title){
var blob = sheet2blob(XLSX.utils.table_to_sheet($('table')[0]));
//设置链接
var link = window.URL.createObjectURL(blob);
var a = document.createElement("a"); //创建a标签
a.download = title+".xlsx"; //设置被下载的超链接目标（文件名）
a.href = link; //设置a标签的链接
document.body.appendChild(a); //a标签添加到页面
a.click(); //设置a标签触发单击事件
document.body.removeChild(a); //移除a标签
}
// 将一个sheet转成最终的excel文件的blob对象，然后利用URL.createObjectURL下载
function sheet2blob(sheet, sheetName) {
sheetName = sheetName || 'sheet1';
var workbook = {
SheetNames: [sheetName],
Sheets: {}
};
workbook.Sheets[sheetName] = sheet;
// 生成excel的配置项
var wopts = {
bookType: 'xlsx', // 要生成的文件类型
bookSST: false, // 是否生成Shared String Table，官方解释是，如果开启生成速度会下降，但在低版本IOS设备上有更好的兼容性
type: 'binary'
};
var wbout = XLSX.write(workbook, wopts);
var blob = new Blob([s2ab(wbout)], {type:"application/octet-stream"});
// 字符串转ArrayBuffer
function s2ab(s) {
var buf = new ArrayBuffer(s.length);
var view = new Uint8Array(buf);
for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
return blob;
}
</script>
