如何使用Web服务发送和接收Excel数据

如何使用Web服务发送和接收Excel数据

我创build了一个Web应用程序来发送Excel文件数据到Web服务。

protected void Page_Load(object sender, EventArgs e) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://localhost:58959/RESTServiceImpl.svc/PostFile"); request.ContentType = "application/vnd.ms-excel"; request.Headers.Add("filename", "fooBar.xls"); request.Method = WebRequestMethods.Http.Post; byte[] fileData = System.IO.File.ReadAllBytes("C:\\Users\\Public\\Documents\\Forecast Pro TRAC\\Input\\Book1.xls"); request.ContentLength = fileData.Length; using (System.IO.BinaryWriter postStream = new System.IO.BinaryWriter(request.GetRequestStream())) { postStream.Write(fileData); postStream.Flush(); postStream.Close(); } HttpWebResponse response = (HttpWebResponse)request.GetResponse(); System.Diagnostics.Debug.Assert(response.StatusCode == HttpStatusCode.OK); string responseMessage = string.Empty; using (System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream())) { responseMessage = sr.ReadToEnd(); } System.Diagnostics.Debug.WriteLine(responseMessage); } 

现在我需要从WCF应用程序接收该Excel数据。 所以我做了下面的代码。 我得到了我发送的总字节数。 发送和接收excel数据我需要做的是什么？

 [ServiceContract] public interface IRESTServiceImpl { [OperationContract] [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "PostFile")] string PostFile(); } public class RESTServiceImpl : IRESTServiceImpl { public string PostFile() { var httpRequest = HttpContext.Current.Request; var bites = httpRequest.TotalBytes; return httpRequest.FilePath; } } 

我在networking服务中很新，这是我的第一个应用程序。 所以，请帮助我。 提前致谢。

Answer 1

我已经解决了解决scheme，这里是工作代码

 public class RestServiceImpl : IRestServiceImpl { public string PostFileRest(Stream fileContents) { var httpRequest = HttpContext.Current.Request; var filePath = "C:\\file.xls"; //excel filePath for local var bites = httpRequest.TotalBytes; //Convert stream to byte array byte[] reqBytes = readRequest(fileContents, bites); byte[] decodedReqBytes = HttpUtility.UrlDecodeToBytes(reqBytes); string json = System.Text.Encoding.UTF8.GetString(reqBytes); DataTable dt = JsonConvert.DeserializeObject<DataTable>(json); MemoryStream stream = new MemoryStream(reqBytes); FileStream file = new FileStream(filePath, FileMode.Create, FileAccess.Write); stream.WriteTo(file); file.Close(); stream.Close(); return json ; } #region Convert Stream to byte array private byte[] readRequest(Stream fileContents, int bites) { System.IO.MemoryStream memStream = new System.IO.MemoryStream(); int BUFFER_SIZE = bites; int iRead = 0; int idx = 0; Int64 iSize = 0; memStream.SetLength(BUFFER_SIZE); while (true) { byte[] reqBuffer = new byte[BUFFER_SIZE]; try { iRead = fileContents.Read(reqBuffer, 0, BUFFER_SIZE); } catch (System.Exception e) { System.Diagnostics.Debug.WriteLine(e.Message); } if (iRead == 0) { break; } iSize += iRead; memStream.SetLength(iSize); memStream.Write(reqBuffer, 0, iRead); idx += iRead; } byte[] content = memStream.ToArray(); memStream.Close(); return content; } #endregion } 

接口 –

 [ServiceContract] public interface IRestServiceImpl { [OperationContract] [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = "PostFileRest")] string PostFileRest(Stream fileContents); }