使用插件 js-table2excel可自定义图片大小以及数据多少，可直接读取数据或者是表格内容
/* eslint-disable */
let idTmr;
const getExplorer = () => {
let 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';
}
}
// 判断浏览器是否为IE
const exportToExcel = (data, name) => {
// 判断是否为IE
if (getExplorer() == 'ie') {
tableToIE(data, name)
} else {
tableToNotIE(data, name)
}
}
const Cleanup = () => {
window.clearInterval(idTmr);
}
// ie浏览器下执行
const tableToIE = (data, name) => {
let curTbl = data;
let oXL = new ActiveXObject("Excel.Application");
//创建AX对象excel
let oWB = oXL.Workbooks.Add();
//获取workbook对象
let xlsheet = oWB.Worksheets(1);
//激活当前sheet
let 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 {
let 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);
}
}
// 非ie浏览器下执行
const tableToNotIE = (function () {
// 编码要用utf-8不然默认gbk会出现中文乱码
const 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><meta charset="UTF-8"><!--[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>';
const base64 = function (s) {
return window.btoa(unescape(encodeURIComponent(s)));
}
const format = (s, c) => {
return s.replace(/{(\w+)}/g,
(m, p) => {
return c[p];
})
}
return (table, name) => {
const ctx = {
worksheet: name,
table
}
const url = uri + base64(format(template, ctx));
if (navigator.userAgent.indexOf("Firefox") > -1){
window.location.href = url
} else {
const aLink = document.createElement('a');
aLink.href = url;
aLink.download = name || '';
let event;
if (window.MouseEvent) {
event = new MouseEvent('click');
} else {
event = document.createEvent('MouseEvents');
event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
}
aLink.dispatchEvent(event);
}
}
})()
// 导出函数
const table2excel = (column, data, excelName) => {
const typeMap = {
image: getImageHtml,
text: getTextHtml
}
let thead = column.reduce((result, item) => {
result += `<th>${item.title}</th>`
return result
}, '')
thead = `<thead><tr>${thead}</tr></thead>`
let tbody = data.reduce((result, row) => {
const temp = column.reduce((tds, col) => {
tds += typeMap[col.type || 'text'](row[col.key], col)
return tds
}, '')
result += `<tr>${temp}</tr>`
return result
}, '')
tbody = `<tbody>${tbody}</tbody>`
const table = thead + tbody
// 导出表格
exportToExcel(table, excelName)
function getTextHtml(val) {
return `<td style="text-align: center;vnd.ms-excel.numberformat:@">${val}</td>`
}
function getImageHtml(val, options) {
options = Object.assign({width: 40, height: 60}, options)
return `<td style="width: ${options.width}px; height: ${options.height}px; text-align: center; vertical-align: middle"><img src="${val}" width=${options.width} height=${options.height}></td>`
}
}
export default table2excel
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