在c#HttpClient 4.5中发布multipartform-data

概述问题 我正在尝试发布API以将数据发送到API,该API调用我的内部API服务以将该数据发送到其他API i服务.实体包含带文件的属性.这只将文件发送到另一个派生,但NameSender属性不随文件一起发送. 实体 public class Email{ public string NameSender{ get; set; } public List<IFormFile> 问题

我正在尝试发布API以将数据发送到API,该API调用我的内部API服务以将该数据发送到其他API i服务.实体包含带文件的属性.这只将文件发送到另一个派生,但nameSender属性不随文件一起发送.

实体

public class Email{    public string nameSender{ get; set; }    public List<IFormfile> files { get; set; }}

API

[Consumes("multipart/form-data")][httpPost]public IActionResult SendEmail([FromForm]Entity entity){    try    {        string Servicesfuri = this.serviceContext.CodePackageActivationContext.Applicationname + "/" + this.configSettings.SendNotificationServicename;        string proxyUrl = $"http://localhost:{this.configSettings.ReverseProxyPort}/{Servicesfuri.Replace("fabric:/","")}/API/values/Send";        //attachments        var requestContent = new MultipartFormDataContent();        foreach (var item in entity.files)        {            StreamContent streamContent = new StreamContent(item.OpenReadStream());            var fileContent = new ByteArrayContent(streamContent.ReadAsByteArrayAsync().Result);            requestContent.Add(fileContent,item.name,item.filename);        }        httpResponseMessage response = this.httpClIEnt.PostAsync(proxyUrl,requestContent).Result;        if (response.StatusCode != System.Net.httpStatusCode.OK)        {            return this.StatusCode((int)response.StatusCode);        }        return this.Ok(response.Content.ReadAsstringAsync().Result);    }    catch (Exception e)    {        throw e;    }}

解决方法 这种方法适合我.您可以使用表单数据和文件

public async Task<bool> Upload(fileUploadRequest model){    var httpclienthandler = new httpclienthandler()    {      Proxy = new WebProxy("proxyAddress","proxyPort")      {        Credentials = CredentialCache.DefaultCredentials      },PreAuthenticate = true,UseDefaultCredentials = true    };    var fileContent = new StreamContent(model.file.OpenReadStream())    {       headers =       {           ContentLength = model.file.Length,ContentType = new MediaTypeheaderValue(model.file.ContentType)       }    };    var formDataContent = new MultipartFormDataContent();    formDataContent.Add(fileContent,"file",model.file.filename);          // file    formDataContent.Add(new StringContent("Test Full name"),"Fullname");   // form input    using (var clIEnt = new httpClIEnt(handler: httpclienthandler,disposeHandler: true))    {        clIEnt.DefaultRequestheaders.Add("Authorization","Bearer " + tokenString);        using (var res = await clIEnt.PostAsync("http://filestorageurl",formDataContent))        {           return res.IsSuccessstatusCode;        }    }}

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