[winfrom]程序自动更新

最新推荐文章于 2025-05-12 00:23:42 发布

厦门德仔

最新推荐文章于 2025-05-12 00:23:42 发布

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分类专栏： # WinFrom&WPF

本文链接：https://blog.youkuaiyun.com/david_520042/article/details/79172218

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本文介绍了一种桌面程序自动更新的方法，通过FTP服务器提供新版本文件，并利用专门的更新程序实现旧版本的替换。文中详细展示了使用C#实现的具体代码，包括FTP操作如文件上传、下载等功能。

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越来越多的客户端安装桌面程序，如何让程序保持最新版本实现自动更新成为一个问题。
思路：
客户端程序增加自动功能，调用自动更新程序，透过http或者ftp下载到客户端进行替换。由于时间比较急没有采用http下载压缩包到客户端进行解压实现，直接通过架设ftp服务器下载替换(最好是结合xml进行比对哪些程序需要更新)，本次直接更
新。
(1)新建ftp服务器
这里写图片描述
(2) 主程序调用,调用时关闭主线程

(3)自动下载更新

         private void btnUpdate_Click(object sender, EventArgs e)
        {
            try
            {
                if (MessageBox.Show("检查到新版本，是否更新？", "更新", MessageBoxButtons.YesNo, 
                    MessageBoxIcon.Question) == DialogResult.Yes)
                {
                    //更新（调用更新的exe，这个是单独的一个程序，下面再说怎么写）
                    string fileName = Application.StartupPath + @"\DZAMSUpdate.exe";
                    Process p = new Process();
                    p.StartInfo.UseShellExecute = false;
                    p.StartInfo.RedirectStandardOutput = true;
                    p.StartInfo.FileName = fileName;
                    p.StartInfo.CreateNoWindow = true;
                    p.StartInfo.Arguments = "你好， 厦门欢迎你！";//参数以空格分隔，如果某个参数为空，可以传入””
                    p.Start();
                    System.Environment.Exit(System.Environment.ExitCode);   //结束主线程
                     // p.WaitForExit(); //这里就不能等他结束了
                     // string output = p.StandardOutput.ReadToEnd(); //this.Dispose();//关闭主程序
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

FtpHelper.cs

    static public class FtpHelper
    {
        //基本设置
        static private string path = @"ftp://" + Helper.GetAppConfig("obj") + "/";    //目标路径
        static private string ftpip = Helper.GetAppConfig("obj");    //ftp IP地址
        static private string username = Helper.GetAppConfig("username");   //ftp用户名
        static private string password = Helper.GetAppConfig("password");   //ftp密码

        //获取ftp上面的文件和文件夹
        public static string[] GetFileList(string dir)
        {
            string[] downloadFiles;
            StringBuilder result = new StringBuilder();
            FtpWebRequest request;
            try
            {
                request = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));
                request.UseBinary = true;
                request.Credentials = new NetworkCredential(username, password);//设置用户名和密码
                request.Method = WebRequestMethods.Ftp.ListDirectory;
                request.UseBinary = true;

                WebResponse response = request.GetResponse();
                StreamReader reader = new StreamReader(response.GetResponseStream());

                string line = reader.ReadLine();
                while (line != null)
                {
                    result.Append(line);
                    result.Append("\n");
                    Console.WriteLine(line);
                    line = reader.ReadLine();
                }
                // to remove the trailing '\n'
                result.Remove(result.ToString().LastIndexOf('\n'), 1);
                reader.Close();
                response.Close();
                return result.ToString().Split('\n');
            }
            catch (Exception ex)
            {
                Console.WriteLine("获取ftp上面的文件和文件夹：" + ex.Message);
                downloadFiles = null;
                return downloadFiles;
            }
        }

        /// <summary>
        /// 获取文件大小
        /// </summary>
        /// <param name="file">ip服务器下的相对路径</param>
        /// <returns>文件大小</returns>
        public static int GetFileSize(string file,string Dir)
        {
            StringBuilder result = new StringBuilder();
            FtpWebRequest request;
            try
            {
                request = (FtpWebRequest)FtpWebRequest.Create(new Uri(path+ "\\" + Dir + "\\" + file));
                request.UseBinary = true;
                request.Credentials = new NetworkCredential(username, password);//设置用户名和密码
                request.Method = WebRequestMethods.Ftp.GetFileSize;

                int dataLength = (int)request.GetResponse().ContentLength;

                return dataLength;
            }
            catch (Exception ex)
            {
                Console.WriteLine("获取文件大小出错：" + ex.Message);
                return -1;
            }
        }

        /// <summary>
        /// 文件上传
        /// </summary>
        /// <param name="filePath">原路径（绝对路径）包括文件名</param>
        /// <param name="objPath">目标文件夹：服务器下的相对路径 不填为根目录</param>
        public static void FileUpLoad(string filePath, string objPath = "")
        {
            try
            {
                string url = path;
                if (objPath != "")
                    url += objPath + "/";
                try
                {

                    FtpWebRequest reqFTP = null;
                    //待上传的文件 （全路径）
                    try
                    {
                        FileInfo fileInfo = new FileInfo(filePath);
                        using (FileStream fs = fileInfo.OpenRead())
                        {
                            long length = fs.Length;
                            reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(url + fileInfo.Name));

                            //设置连接到FTP的帐号密码
                            reqFTP.Credentials = new NetworkCredential(username, password);
                            //设置请求完成后是否保持连接
                            reqFTP.KeepAlive = false;
                            //指定执行命令
                            reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
                            //指定数据传输类型
                            reqFTP.UseBinary = true;

                            using (Stream stream = reqFTP.GetRequestStream())
                            {
                                //设置缓冲大小
                                int BufferLength = 5120;
                                byte[] b = new byte[BufferLength];
                                int i;
                                while ((i = fs.Read(b, 0, BufferLength)) > 0)
                                {
                                    stream.Write(b, 0, i);
                                }
                                Console.WriteLine("上传文件成功");
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine("上传文件失败错误为" + ex.Message);
                    }
                    finally
                    {

                    }
                }
                catch (Exception ex)
                {
                    Console.WriteLine("上传文件失败错误为" + ex.Message);
                }
                finally
                {

                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("上传文件失败错误为" + ex.Message);
            }
        }

        /// <summary>
        /// 删除文件
        /// </summary>
        /// <param name="fileName">服务器下的相对路径 包括文件名</param>
        public static void DeleteFileName(string fileName)
        {
            try
            {
                FileInfo fileInf = new FileInfo(ftpip + "" + fileName);
                string uri = path + fileName;
                FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
                // 指定数据传输类型
                reqFTP.UseBinary = true;
                // ftp用户名和密码
                reqFTP.Credentials = new NetworkCredential(username, password);
                // 默认为true，连接不会被关闭
                // 在一个命令之后被执行
                reqFTP.KeepAlive = false;
                // 指定执行什么命令
                reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                response.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine("删除文件出错：" + ex.Message);
            }
        }

        /// <summary>
        /// 新建目录 上一级必须先存在
        /// </summary>
        /// <param name="dirName">服务器下的相对路径</param>
        public static void MakeDir(string dirName)
        {
            try
            {
                string uri = path + dirName;
                FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
                // 指定数据传输类型
                reqFTP.UseBinary = true;
                // ftp用户名和密码
                reqFTP.Credentials = new NetworkCredential(username, password);
                reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                response.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine("创建目录出错：" + ex.Message);
            }
        }

        /// <summary>
        /// 删除目录 上一级必须先存在
        /// </summary>
        /// <param name="dirName">服务器下的相对路径</param>
        public static void DelDir(string dirName)
        {
            try
            {
                string uri = path + dirName;
                FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
                // ftp用户名和密码
                reqFTP.Credentials = new NetworkCredential(username, password);
                reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                response.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine("删除目录出错：" + ex.Message);
            }
        }

        /// <summary>
        /// 从ftp服务器上获得文件夹列表
        /// </summary>
        /// <param name="RequedstPath">服务器下的相对路径</param>
        /// <returns></returns>
        public static List<string> GetDirctory(string RequedstPath)
        {
            List<string> strs = new List<string>();
            try
            {
                string uri = path + RequedstPath;   //目标路径 path为服务器地址
                FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
                // ftp用户名和密码
                reqFTP.Credentials = new NetworkCredential(username, password);
                reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
                WebResponse response = reqFTP.GetResponse();
                StreamReader reader = new StreamReader(response.GetResponseStream());//中文文件名

                string line = reader.ReadLine();
                while (line != null)
                {
                    if (line.Contains("<DIR>"))
                    {
                        string msg = line.Substring(line.LastIndexOf("<DIR>") + 5).Trim();
                        strs.Add(msg);
                    }
                    line = reader.ReadLine();
                }
                reader.Close();
                response.Close();
                return strs;
            }
            catch (Exception ex)
            {
                Console.WriteLine("获取目录出错：" + ex.Message);
            }
            return strs;
        }

        /// <summary>
        /// 从ftp服务器上获得文件列表
        /// </summary>
        /// <param name="RequedstPath">服务器下的相对路径</param>
        /// <returns></returns>
        public static List<string> GetFile(string RequedstPath)
        {
            List<string> strs = new List<string>();
            try
            {
                string uri = path + RequedstPath;   //目标路径 path为服务器地址
                FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
                // ftp用户名和密码
                reqFTP.Credentials = new NetworkCredential(username, password);
                reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
                WebResponse response = reqFTP.GetResponse();
                StreamReader reader = new StreamReader(response.GetResponseStream());//中文文件名

                string line = reader.ReadLine();
                while (line != null)
                {
                    if (!line.Contains("<DIR>"))
                    {
                        string msg = line.Substring(39).Trim();
                        strs.Add(msg);
                    }
                    line = reader.ReadLine();
                }
                reader.Close();
                response.Close();
                return strs;
            }
            catch (Exception ex)
            {
                Console.WriteLine("获取文件出错：" + ex.Message);
            }
            return strs;
        }

        //从ftp服务器上下载文件的功能  
        public static void Download(string fileName,string Dir,string pathLocal)
        {
            string filePath = pathLocal; //Application.StartupPath;

            FtpWebRequest reqFTP;
            try
            {
                FileStream outputStream = new FileStream(filePath + fileName, FileMode.Create);//本地路径
                reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path + "\\" + Dir+"\\"+ fileName)); //ftp路径
                reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
                // 指定数据传输类型 
                reqFTP.UseBinary = true;
                reqFTP.Credentials = new NetworkCredential(username, password);
                reqFTP.UsePassive = true;
                reqFTP.KeepAlive = true;
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                Stream ftpStream = response.GetResponseStream();
                // 服务器文件的大小  
                long cl = response.ContentLength;
                // 缓冲大小设置为2kb  
                int bufferSize = 2048;
                int readCount;
                byte[] buffer = new byte[bufferSize];
                readCount = ftpStream.Read(buffer, 0, bufferSize);
                while (readCount > 0)
                {
                    outputStream.Write(buffer, 0, readCount);
                    readCount = ftpStream.Read(buffer, 0, bufferSize);
                }
                ftpStream.Close();
                outputStream.Close();
                response.Close();


            }
            catch (Exception ex)
            {
                throw ex;
            }
        }


    }

更新窗体

public partial class Update_Frm : Form
    {
       //文件下载会自动覆盖原文件，无需删除
        public static string UrlLocal = "D:\\DZAMS\\Debug\\";
        public static string DirDZAMS = "DZAMS\\Debug";
        int fileCount;

        public Update_Frm()
        {
            InitializeComponent();
            this.Width = 600;
            this.Height = 175;
            this.MaximizeBox = false;
            this.MinimizeBox = false;

        }

        private void Update_Frm_Load(object sender, EventArgs e)
        {

            //关闭已经启动进程DZAMS
            Process[] pa = Process.GetProcesses();//获取当前进程数组。  
            foreach (Process p in pa)
            {
                if (p.ProcessName == "DZAMS")
                {
                    p.Kill();
                }
            }

            //创建目录先
            CreateDir();

        }
        /// <summary>
        /// 更新一级目录与二级目录文件夹
        /// </summary>
        public void CreateDir()
        {
            if (!Directory.Exists(UrlLocal))   //目标文件夹是否存在
            {
                Directory.CreateDirectory(UrlLocal);
                lblFileMsg.Text = "正在创建文件夹:" + UrlLocal;
            }
            else
            {
                List<string> Dir = new List<string>();
                Dir = FtpHelper.GetDirctory(DirDZAMS);
                //遍历FTP服务器文件夹并更新到本地
                foreach (string dir in Dir)
                {
                    if (Directory.Exists(UrlLocal + dir))
                    {
                       // DeleteFile(UrlLocal + dir);
                    }
                    else
                    {
                        Directory.CreateDirectory(UrlLocal + dir);
                        lblFileMsg.Text = "正在创建文件夹:" + UrlLocal + dir;
                    }

                }
            }
        }
        /// <summary>
        /// 从FTP服务器下载文件
        /// </summary>
        public  void SyncAllFile()
        {
            //SyncDirFile();
            /*
            List<string> Dir = new List<string>();
            Dir = FtpHelper.GetDirctory(DirDZAMS);
            //遍历FTP服务器文件夹并更新到本地
            foreach (string dir in Dir)
            {
                //if (Directory.Exists(UrlLocal + dir))
                //{
                //    DeleteFile(UrlLocal + dir);
                //}
                //else
                //{
                //    Directory.CreateDirectory(UrlLocal + dir);
                //}
                //遍历FTP服务器文件并更新到本地
                List<string> File2 = new List<string>();
                File2 = FtpHelper.GetFile(DirDZAMS + "\\" + dir);//获取FTP二级目录文件
                foreach (string file in File2)
                {

                    ////判断本地文件是否存在，则比对本地文件的
                    //if (File.Exists(UrlLocal + "\\" + dir + "\\" + file))
                    //{
                    //    DeleteFile(UrlLocal + "\\" + dir + "\\" + file);
                    //    //FileInfo f1 = new FileInfo(UrlLocal + "\\" + dir + "\\" + file);

                    //    //if (DateTime.Compare(FtpHelper.GetCreateTime(file, DirDZAMS + "\\" + dir), f1.CreationTime) > 0)
                    //    //{
                    //    //}
                    //}
                    lblFileMsg.Text = "正在更新文件:" + "\\" + dir + "\\" + file;
                    FtpHelper.Download(file, DirDZAMS + "\\" + dir, UrlLocal + dir + "\\");

                    fileCount++;

                }
            }
            */
            //遍历FTP服务器文件并更新到本地
            List<string> MyFile = new List<string>();
            MyFile = FtpHelper.GetFile(DirDZAMS);//获取FTP服务器文件
            foreach (string file in MyFile)
            {
                //判断本地文件是否存在，存在删除
                //if (File.Exists(UrlLocal+file))
                //{
                //    DeleteFile(UrlLocal + file);
                //}
                FtpHelper.Download(file, DirDZAMS, UrlLocal);
                lblFileMsg.Text = "正在更新文件:" + "\\" + DirDZAMS + "\\" + file;
                fileCount++;
            }
        }
        public void SyncDirFile()
        {
            List<string> Dir = new List<string>();
            Dir = FtpHelper.GetDirctory(DirDZAMS);
            //遍历FTP服务器文件夹并更新到本地
            foreach (string dir in Dir)
            {
                List<string> File2 = new List<string>();
                File2 = FtpHelper.GetFile(DirDZAMS + "\\" + dir);//获取FTP二级目录文件
                foreach (string file in File2)
                {
                    lblFileMsg.Text = "正在更新文件:" + "\\" + dir + "\\" + file;

                    FtpHelper.Download(file, DirDZAMS + "\\" + dir, UrlLocal + dir + "\\");

                    fileCount++;

                }
            }
            lblMsg.Text = "更新完成：总共 " + fileCount.ToString() + "个文件";
        }
        /// <summary>
        /// 根据路径删除文件
        /// </summary>
        /// <param name="path"></param>
        public void DeleteFile(string path)
        {
            FileAttributes attr = File.GetAttributes(path);
            if (attr == FileAttributes.Directory)
            {
                Directory.Delete(path, true);
            }
            else
            {
                File.Delete(path);
            }
        }

        private void BtnUpdate_Click(object sender, EventArgs e)
        {
            this.BtnUpdate.Enabled = false;
            //更新文件
            SyncAllFile();

            MessageBox.Show("程序已更新,更新完成时间：" + System.DateTime.Now.ToLongTimeString());
            System.Environment.Exit(0);
        }

    }