webApi上传

/// <summary>
/// 上传做中转然后后台请求webapi
/// </summary>
/// <returns></returns>
public ActionResult AjaxUploadFiles()
{
if (Request.Files.Count > 0)
{
try
{
var file = Request.Files[0];
var tempFileDir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "TempUploadFile");
if (!Directory.Exists(tempFileDir))
{
Directory.CreateDirectory(tempFileDir);
}

string fileFullPath = Path.Combine(tempFileDir, file.FileName);
//1保存到临时文件夹中
file.SaveAs(fileFullPath);

//2代理上传到webAapi
string url = "http://10.10.0.17:999/api/v1/UploadFile/UploadFiles";
List<string> fileFullPaths = new List<string>() { fileFullPath };
ApiReuslt<FileInfoModel> apiReuslt = this.PostUploadFiles(url, fileFullPaths);

//3.删除本地临时的文件夹
System.IO.Directory.Delete(tempFileDir, true);
return Json(apiReuslt, JsonRequestBehavior.AllowGet);
}
catch (Exception ex)
{
return Json(ApiReuslt<FileInfoModel>.Failed(ex.Message), JsonRequestBehavior.AllowGet);
}
}
return Json(ApiReuslt<FileInfoModel>.Failed("请选择文件"), JsonRequestBehavior.AllowGet);
}

/// <summary>
/// 代理请求上传到webApi上
/// </summary>
/// <param name="baseAddress"></param>
/// <param name="postUrl"></param>
/// <param name="fileFulllPaths"></param>
/// <returns>上传的路径</returns>
private ApiReuslt<FileInfoModel> PostUploadFiles(string url, List<string> fileFulllPaths)
{
using (HttpClient httpClient = new HttpClient())
{
using (MultipartFormDataContent content = new MultipartFormDataContent())
{
foreach (var filePath in fileFulllPaths)
{
var fileContent = new ByteArrayContent(System.IO.File.ReadAllBytes(filePath));
fileContent.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
FileName = filePath
};
content.Add(fileContent);
}
JavaScriptSerializer jss = new JavaScriptSerializer();
HttpResponseMessage result = httpClient.PostAsync(url, content).Result;
string json = result.Content.ReadAsStringAsync().Result;
return jss.Deserialize<ApiReuslt<FileInfoModel>>(json);
}
}
}