前端通過axios封裝的get或post請求，導出頁面表格內容爲Excel

1. post 請求

export default function (data) {
    axios({
        method: 'post',
        url: data.url,  //後端接口地址
        responseType: 'blob',  //bolb格式的請求方式
        headers: {
            Authentication: getToken('Admin-Token')  //請求頭
        },
        data: data.data //需要傳給後端的請求參數體
    }).then(res => {
        const BLOB = res.data;
        const fileReader = new FileReader();  
        fileReader.readAsDataURL(BLOB);  //對請求返回的文件進行處理
        fileReader.onload = (e) => {
            let a = document.createElement('a');
            a.download = data.name + '.xlsx'
            a.href = e.target.result;
            document.body.appendChild(a)
            a.click();
            document.body.removeChild(a)
        }
    }).catch(err => {
        console.log(err.message)
    })
}

fileReader詳解

2. get 請求

export default function (data) {
     axios({
         url: data.url,
         method: 'get',
         responseType: 'blob',
         params: data.data,  //與post傳參方式不同之處
         headers: {
           Authentication: getToken()       
         }
     }).then(res => {
        var blob = new Blob([res.data], 
        {type: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document;charset=utf-8'});
        var filename = data.name + '.xlsx';  
        var downloadElement = document.createElement('a');
        var href = window.URL.createObjectURL(blob); //創建下載的鏈接
        downloadElement.style.display = 'none';
        downloadElement.href = href;
        downloadElement.download =filename ; //下載後文件名
        document.body.appendChild(downloadElement);
        downloadElement.click(); //點擊下載
        document.body.removeChild(downloadElement); //下載完成移除元素
        window.URL.revokeObjectURL(href); //釋放掉blob對象
        }
   }

參考文章：https://www.cnblogs.com/zz-zrr/p/11970935.html