c#如何实现自动更新

it2022-05-09 35

更新思想：根据url下载安装包，再在本地解压，将图标在桌面显示。自动更新的时候使用后台线程（当程序退出的时候，线程也退出）。

private void lbVersion_Click(object sender, RoutedEventArgs e)//设置一个按钮来确定是否自动更新 { AutoUpdateManager.AutoUpdate(); }

public static void AutoUpdate()//将程序放入线程池中（线程池线程默认为后台线程，应用程序的主线程以及使用Thread构造的线程都默认为前台线程，线程池线程也就是使用 ThreadPool.QueueUserWorkItem()和Task工厂创建的线程都默认为后台线程） { ThreadPool.QueueUserWorkItem(CheckUpdateAction); }

private static void CheckUpdateAction(object state) { if (state != null)//这里没啥用，防止以后加功能 { Thread.CurrentThread.Priority = (ThreadPriority)state; } { WorkFileService service = new WorkFileService();//new一个类 WorkFile file = service.NetDownAutoUpdateFiles(ConfigurationManager.AppSettings["fileBigType"], ConfigurationManager.AppSettings["fileSmallType"], CurVersion);//根据URL下载信息，根据Http下载，代码在下面 if (file != null && !string.IsNullOrEmpty(file.fileNo)) { if (!Directory.Exists(AppDomain.CurrentDomain.BaseDirectory + @"DownFiles\"))//穿件一个文件夹放安装程序 { Directory.CreateDirectory(AppDomain.CurrentDomain.BaseDirectory + @"DownFiles\"); } string path = MakeTempUpdateAction(Path.Combine(AppDomain.CurrentDomain.BaseDirectory + @"DownFiles\", file.fileName));//解压程序，并在桌面上放图标 if (OnUpdated != null) { OnUpdated.Invoke(file.fileName.Replace(".zip", "").Replace(".rar", ""), path); } } else { if (OnUpdated != null) { OnUpdated.Invoke(string.Empty, string.Empty); } } } }

public class WorkFile : EntityBase { /// <summary> /// 文件ID /// </summary> public int fileId { get; set; } /// <summary> /// 文件编号 /// </summary> public string fileNo { get; set; } /// <summary> /// 文件类型 /// </summary> public int fileType { get; set; } /// <summary> /// 文件名 /// </summary> public string fileName { get; set; } /// <summary> /// 文件拓展名 /// </summary> public string extension { get; set; } /// <summary> /// 文件大小 /// </summary> public int fileSize { get; set; } /// <summary> /// 文件路径 /// </summary> public string filePath { get; set; } /// <summary> /// 数据标识 /// </summary> public int dataFlag { get; set; } /// <summary> /// 文件MD5码 /// </summary> public string md5 { get; set; } /// <summary> /// 机台类型 /// </summary> public string machineType { get; set; } /// <summary> /// 文件分组Id /// </summary> public int groupId { get; set; } /// <summary> /// 拓展Json /// </summary> public string json { get; set; } /// <summary> /// 文件顺序 /// </summary> public int rowNum { get; set; } /// <summary> /// 版本 /// </summary> public string version { get; set; } }

public WorkFile NetDownAutoUpdateFiles(string big, string small, string version)//下载程序 { WorkFile file = new WorkFile(); string result = HttpClient.DownLoadData(ConfigurationManager.AppSettings["API_AutoUpdateProgram"], new { fileBigType = big, fileSmallType = small, fileVersion = version });//代码后面后 if (!string.IsNullOrEmpty(result))//若返回的数据不为空，反序列化到类中 { var Msg = JsonHelper.Deserialize<ApiMessage<WorkFile>>(result); if (Msg != null) { file = Msg.data; if (file != null && !string.IsNullOrEmpty(file.fileNo)) { if (HttpClient.HttpDownloadAutoUpdateFile(file.filePath, file.fileName, file.md5))//md5检验 { rep.Add(file); } UnitOfWorkFile.Commit();//使用事务，防止下载到一半断网了 } } } return file; }

public static string DownLoadData(string url, object requestData)//根据url下载，使用post传输，用webclient下载，未转换成类，是json字符串

{ string ret = string.Empty; try { if (!url.Contains("http")) { url = string.Format("http://{0}:{1}/{2}/{3}", ConfigurationManager.AppSettings["ApiServerHost"], ConfigurationManager.AppSettings["ApiServerPort"], ConfigurationManager.AppSettings["ApiPrefix"], url); } using (WebClient client = new WebClient()) { client.Encoding = Encoding.UTF8; client.Headers.Add("Accept", "application/json"); client.Headers.Add("Content-Type", "application/json"); client.Headers.Add("Timeout", "5000"); client.Headers.Add("Method", "POST"); ret = client.UploadString(url, JsonHelper.Serialize(requestData));//下载数据 } } catch (Exception ex) { } return ret; }

/// <summary> /// HTTP下载文件 /// </summary> /// <param name="url">Http相对路径</param> /// <param name="fileName">文件名</param> /// <returns></returns> public static bool HttpDownloadAutoUpdateFile(string url, string fileName, string md5) { try { DownFilesPath = AppDomain.CurrentDomain.BaseDirectory + @"DownFiles\";//获取文件基目录 string filePath = DownFilesPath + fileName; using (WebClient client = new WebClient()) { url = url.Replace("192.168.50.100", ConfigurationManager.AppSettings["ApiServerHost"]); Uri uri = new Uri(string.Format("http://{0}/{1}", url, fileName)); client.DownloadFile(uri, filePath); //下载文件到指定目录 } return CheckFileMd5ByFilePath(filePath, md5);//进行md5检验确定下载文件的正确性 } catch (Exception ex) { return false; } } /// <summary> /// md5校验 /// </summary> /// <param name="FilePath">文件路径</param> /// <returns></returns> private static bool CheckFileMd5ByFilePath(string FilePath, string RightMd5) { bool Right = false; try { if (File.Exists(FilePath)) { using (System.IO.FileStream fileStream = new System.IO.FileStream(FilePath, System.IO.FileMode.Open))//用的本地路径 { using (System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider()) { byte[] retVal = md5.ComputeHash(fileStream); string filemd5 = string.Join("", retVal.Select(b => b.ToString("x2")).ToList()); Right = (filemd5 == RightMd5); } fileStream.Close(); } } } catch (Exception ex) { } return Right; }

/// <summary> /// 操作本地临时压缩文件更新程序 /// </summary> /// <param name="zipFilePath">临时压缩文件位置</param> private static string MakeTempUpdateAction(string zipFilePath) { if (File.Exists(zipFilePath)) { string ParentPath = Path.Combine(Path.GetFullPath("../.."), string.Format("{0}{1}", "MacCheck", DateTime.Now.ToString("yyMMddHHmm"))); if (Directory.Exists(ParentPath)) { Directory.Delete(ParentPath, true); } Directory.CreateDirectory(ParentPath); if (ZipHelper.UnZip(zipFilePath, ParentPath)) { ParentPath = Path.Combine(ParentPath, "MacCheck.Bin"); File.Copy(Path.GetFullPath(@"MacCheck_DB.db"), Path.Combine(ParentPath, @"MacCheck_DB.db"), true); File.Copy(Path.GetFullPath(@"MacCheck.exe.config"), Path.Combine(ParentPath, @"MacCheck.exe.config"), true); //File.Copy(Path.GetFullPath(@"SupConConfig.json"), Path.Combine(ParentPath, @"SupConConfig.json"), true); Utils.CreateShortCut("设备点巡检", Path.Combine(ParentPath, @"MacCheck.exe"), ParentPath, "设备点检程序"); return Path.Combine(ParentPath, @"MacCheck.exe"); }; } return string.Empty; }

转载于:https://www.cnblogs.com/xyyshishuaige/p/9037364.html

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