前端使用的是vue框架,所以首先需要在项目中使用npm install
npm install --save xlsx file-saver
在main.js中引入
import FileSaver from 'file-saver'
import XLSX from 'xlsx'
这里一般我们使用的都是json格式的数据,所以导出的方法如下:
let sheet = XLSX.utils.aoa_to_sheet(names);
let cols = []
cloumns.forEach(v => {
cols.push({wpx: 150})
}
)
sheet["!cols"] = cols//调整列宽
sheet['!merges'] = [
// 设置A1-C1的单元格合并
// {s: {r: 0, c: 0}, e: {r: 0, c: 2}}
];
let url = sheet2blob(sheet)
if (typeof url == 'object' && url instanceof Blob) {
url = URL.createObjectURL(url); // 创建blob地址
}
var aLink = document.createElement('a');
let now = new Date()
let fileName = JSON.parse(sessionStorage.getItem('projectInfo')).sname + "项目--任务计划" + now.getFullYear() + (now.getMonth() + 1 < 10 ? '0' + (now.getMonth() + 1) : now.getMonth() + 1) + now.getDate() + now.getHours().toString() + now.getMinutes().toString() + now.getSeconds().toString()
aLink.href = url;
aLink.download = fileName + '.xlsx' || ''; // HTML5新增的属性,指定保存文件名,可以不要后缀,注意,file:///模式下不会生效
var 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);
},
// 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;
}