C# HttpPostedFile传值,储存

HttpContext.Current.Request.Files附件保存

接口实现

　　　　　/// <summary>
        /// Post请求,Params传参
        /// </summary>
        /// <param name="url"></param>
        /// <param name="onHeading"></param>
        /// <returns></returns>
        private object PostMobileApiHost(string url, MultipartFormDataContent formData, Action<HttpRequestHeaders> onHeading = null)
        {
            using (HttpClient client = new HttpClient())
            {
                try
                {
                    VerHttps(url);

                    if (onHeading != null)
                    {
                        onHeading.Invoke(client.DefaultRequestHeaders);
                    }

                    HttpResponseMessage response = client.PostAsync(url, formData).Result;

                    if (response.IsSuccessStatusCode)
                    {
                        return response.Content.ReadAsStringAsync().Result;
                    }
                    else
                    {
                        return response.StatusCode;
                    }
                }
                catch
                {
                    throw;
                }
            }
        }

　　接收附件,使用接口再次调用

　　　　　　　　　HttpFileCollection httpFiles = HttpContext.Current.Request.Files;
                if (httpFiles != null && httpFiles.Count > 0)
                {
                    　　HttpPostedFile file = httpFiles[0];
                        MultipartFormDataContent from = new MultipartFormDataContent();
                        //第一个附件,一次仅上传一个文件
                        byte[] fileBytes = new byte[file.ContentLength]; // 文件内容的字节数组  
                        file.InputStream.Read(fileBytes, 0, file.ContentLength);
                        ByteArrayContent fileContent = new ByteArrayContent(fileBytes);
                        var fileName = file.FileName;
                        fileContent.Headers.ContentType = new MediaTypeHeaderValue(file.ContentType);
                        fileContent.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data")
                        {
                            Name = "file",
                            FileName = fileName
                        };
                        from.Add(fileContent, "file", fileName);
                        PostMobileApiHost("url", from, OnHeading);
                }

　　存储附件

string path = "根路径";
                HttpFileCollection httpFiles = HttpContext.Current.Request.Files;
                List<自定义保存附件类> listAtt = new List<SysAttachment>();
                //保存附件
                if (httpFiles != null && httpFiles.Count > 0)
                {
                    if (string.IsNullOrEmpty(path))
                    {
                        throw new Exception("未设置物理路径地址!");
                    }
                    //附件分组名称集合
                    string[] keys = httpFiles.AllKeys;
                    
                    //保存附件列表
                    for (int i = 0; i < httpFiles.Count; i++)
                    {
                        var postFile = httpFiles[i];
                       
                        string extension = VerifyExtension(postFile.FileName);//验证后缀名
                        string newFileName = string.Format("{0}{1}", Guid.NewGuid().ToString(), extension);
                        string newFilePath = string.Format("{0}{1}", "储存路径", newFileName);
                        string savePath = string.Format("{0}{1}", path.TrimEnd('\\'), newFilePath.Replace("/", "\\"));

                        if (FileHelper.FolderExists(string.Format("{0}{1}", path.TrimEnd('\\'), UploadFolder), true))
                        {
                            //保存附件
                            postFile.SaveAs(savePath);
                            
                            SysAttachment att = new SysAttachment();
                            att.ParentId = 0;
                            att.FileName = postFile.FileName;
                            att.FilePath = newFilePath;
                            att.Extension = extension;
                            att.FileSize = postFile.ContentLength.ToString();
                            att.ContentType = postFile.ContentType;
                            listAtt.Add(att);
                        }
                    }
                }