前言
本篇文章介紹如何使用HttpClient操作HFS (HTTP File Server)，為自己留個紀錄也希望能幫助到有需要的開發人員。關於HTTP File Server的介紹、安裝、設定，可以參考下列參考資料：
功能
AddFile
-
Execute
// Variables string url = @"http://localhost:8080/HFS/"; string fileName = @"AAA.jpg"; string filePath = @"C:\Users\clark\Desktop\AAA.jpg"; // Execute this.AddFile(url, fileName, File.OpenRead(filePath)); -
Function
public void AddFile(string url, string fileName, Stream fileStream) { #region Contracts if (string.IsNullOrEmpty(url) == true) throw new ArgumentException(); if (string.IsNullOrEmpty(fileName) == true) throw new ArgumentException(); if (fileStream == null) throw new ArgumentException(); #endregion // FileStream using (fileStream) { // HttpClient using (var httpClient = new HttpClient()) { // Boundary string boundaryString = "----------------------------" + DateTime.Now.Ticks.ToString("x"); byte[] boundaryBytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundaryString + "\r\n"); // Header string headerString = string.Format("Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n Content-Type: application/octet-stream\r\n\r\n", "file", fileName); byte[] headerBytes = System.Text.Encoding.UTF8.GetBytes(headerString); // RequestContent using (var memoryStream = new MemoryStream()) using (var requestContent = new StreamContent(memoryStream)) { // Headers requestContent.Headers.Add("Content-Type", "multipart/form-data; boundary=" + boundaryString); // Content memoryStream.Write(boundaryBytes, 0, boundaryBytes.Length); memoryStream.Write(headerBytes, 0, headerBytes.Length); fileStream.CopyTo(memoryStream); memoryStream.Position = 0; // Post using (var response = httpClient.PostAsync(url, requestContent).Result) { // Response if (response == null) throw new InvalidOperationException(); if (response.IsSuccessStatusCode == false) throw new InvalidOperationException(); } } } } }
RemoveFile
-
Execute
// Variables string url = @"http://localhost:8080/HFS/"; string fileName = @"AAA.jpg"; // Execute this.RemoveFile(url, fileName); -
Function
public void RemoveFile(string url, string fileName) { #region Contracts if (string.IsNullOrEmpty(url) == true) throw new ArgumentException(); if (string.IsNullOrEmpty(fileName) == true) throw new ArgumentException(); #endregion // HttpClient using (var httpClient = new HttpClient()) { // RequestContent using (var requestContent = new FormUrlEncodedContent(new[] { // Content new KeyValuePair<string, string>("action", "delete"), new KeyValuePair<string, string>("selection", fileName) })) { // Post using (var response = httpClient.PostAsync(url, requestContent).Result) { // Response if (response == null) throw new InvalidOperationException(); if (response.IsSuccessStatusCode == false) throw new InvalidOperationException(); } } } }
簽名檔
期許自己能以更簡潔的文字與程式碼，傳達出程式設計背後的精神。
真正做到「以形寫神」的境界。
