Front-end JS upload file back-end C # receive file

This article roughly describes the front-end file upload and back-end file reception principle

1. Front-end Code

   Html

   <form onsubmit="uploadFile(event)">    <input type="file"/>    <button type="submit">文件上传</button></form>

   Js

   function UploadFile(event){    varFiles= Event.Target[0].Files;    if(Files.length < 1){        Alert("The file is not selected, Pro"); return;    }    varFormData= New FormData();     for(varI= 0;I< Files.length;I++){        FormData.Append(Files[i].name,Files[i]);     }    Axios.Post("Yejiawei/haha",FormData). Then(function(RES){    }).Catch(function(ERR){        Console.Log(ERR);    })}

2. Back-end C # code

   [Route("Yejiawei/haha")][httppost][allowanonymous] Public void Post(){httpfilecollection files= HttpContext. Current.Request.Files;     for(int i= 0;I< Files.Count;I++){Httppostedfile file=Files[i];        file.SaveAs(@"F:\ Learning Experiment Area\filereceive\"+ file. FileName);    }}Isn't it simple?

Front-end JS upload file back-end C # receive file