1. 没有文件服务器, 前后端采用文件流方式下载,后端返回二进制乱码时,前端使用blob对象进行处理
    2.采用的是axios请求方式
  2. this.$http.post("download", { fileName: file.filename })
    .then(function(response) {
    let blob = new Blob([response.data], {type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8'});
    let downloadElement = document.createElement('a');
    let href = window.URL.createObjectURL(blob); //创建下载的链接
    downloadElement.href = href;
    downloadElement.download = 'xxx.xlsx'; //下载后文件名
    document.body.appendChild(downloadElement);
    downloadElement.click(); //点击下载
    document.body.removeChild(downloadElement); //下载完成移除元素
    window.URL.revokeObjectURL(href); //释放掉blob对象
    })

3.1
this.$http.post("download", { fileName: file.filename } ,{responseType: 'arraybuffer'}) // 或者responseType: 'blob'
.then(function(response) {

                 let blob = new Blob([response.data], {type: 'application/vnd.ms-excel'});

                    if (window.navigator.msSaveOrOpenBlob) {
                           //兼容ie
                        window.navigator.msSaveBlob(blob, file.filename);

                    } else {

                        let downloadElement = document.createElement('a');
                        let href = window.URL.createObjectURL(blob); //创建下载的链接
                        downloadElement.href = href;

                        downloadElement.download =  file.filename;//下载后文件名


                        document.body.appendChild(downloadElement);
                        //此写法兼容火狐
                        let evt = document.createEvent("MouseEvents");
                        evt.initEvent("click", false, false);
                        downloadElement.dispatchEvent(evt);

                        document.body.removeChild(downloadElement);
                    }

   }) 

4.分享链接 https://www.oschina.net/question/3910533_2283267

  1. 前端处理文件流自动下载并兼容ie9+ https://blog.csdn.net/skye_Z/article/details/81135540

转载于:https://www.cnblogs.com/wenjuan-blog/p/9346742.html

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