Asp.netMVCAPI前后端分离下载文件乱码问题weixin43764806的博客-

c# 代码

public HttpResponseMessage Export(){  HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);     {           response.Content = new System.Net.Http.ByteArrayContent(ms.ToArray());       };        response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/vnd.ms-excel");       response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")       {           FileName = Name + ".xls",           DispositionType = "UTF-8"       };       return response; } 

前端代码(react + axios)

export function Post (url,params){     return axios.post(url,params,{         responseType:'arraybuffer'     }).then(response =>  {         return response;     }).catch(error => {         console.error(error)     }) } Post(url,params).then(res => {   const url = window.URL.createObjectURL(new Blob([res.data],                     // 设置该文件的mime类型，这里对应的mime类型对应为.xlsx格式                                                                        {type: 'application/vnd.ms-excel;charset=utf-8'}));     const link = document.createElement('a');     link.href = url;         // 从header中获取服务端命名的文件名     let fileName = decodeURI(res.headers['content-disposition'].substring(res.headers['content-disposition'].indexOf("=")));         fileName = fileName.substring(0,fileName.length-1);     link.setAttribute('download', fileName);     document.body.appendChild(link);     link.click(); })