axio请求里必须加 responseType: 'blob' 参数,如下
//下载文件 api.download=function(id) { return request({ url: this.baseUrl+'/download/'+id, method: 'get', params: {}, responseType: 'blob' }) }
返回结果里面要做如下处理
.then( res => { let blob = new Blob([res], {type: res.type}) let downloadElement = document.createElement('a') let href = window.URL.createObjectURL(blob); //创建下载的链接 downloadElement.href = href; downloadElement.download = fileName; //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blob对象 })