Winform自動更新程式

阿新 • • 發佈：2021-01-12

本文采用自動更新策略為“訪問Web站點獲取最新版本，下載更新檔案壓縮包，並控制解壓覆蓋舊檔案完成更新”。

注意事項：

因為是覆蓋檔案進行更新，故更新程式和主程式不能有關聯

不能引用相同的DLL檔案（覆蓋安裝會告知檔案佔用無法覆蓋）
更新過程中主程式不能在啟動狀態（理由同上）

思路：

部署一個Web站點，用於判斷更新資訊和下載更新檔案
主程式和更新程式啟動時，訪問Web站點獲取版本號並和主程式版本進行對比，不一致則提醒更新

建立專案

專案資源如下圖：

ps：主程式和更新程式不能共用更新處理類，故各放了1個。

主程式-Main程式碼：

using System;
using System.Windows.Forms;

 
namespace WinFormUpdaterDemo
{
    public partial class Main : Form
    {
        public Main()
        {
            InitializeComponent();
        }

        private void Main_Load(object sender, EventArgs e)
        {
            label1.Text = "程式集版本：" + System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString() + " 
\n";
            //label1.Text += "檔案版本：" + Application.ProductVersion.ToString() + "\n";
        }
    }
}

View Code

主程式-更新處理類SoftUpdate.cs：

using System;
using System.IO;
using System.Net;
using System.Reflection;
using System.Xml;

namespace WinFormUpdaterDemo
{
    /// <summary>  
    /// 更新完成觸發的事件  
     
/// </summary>  
    public delegate void UpdateState();
    /// <summary>  
    /// 程式更新  
    /// </summary> 
    public class SoftUpdate
    {
        private string download;
        private const string updateUrl = "http://127.0.0.1:7000/update.xml";//升級配置的XML檔案地址  

        #region 建構函式
        public SoftUpdate() { }

        /// <summary>  
        /// 程式更新  
        /// </summary>  
        /// <param name="file">要更新的檔案</param>  
        public SoftUpdate(string file, string softName)
        {
            this.LoadFile = file;
            this.SoftName = softName;
        }
        #endregion

        #region 屬性
        private string loadFile;
        private string newVerson;
        private string softName;
        private bool isUpdate;

        /// <summary>  
        /// 或取是否需要更新  
        /// </summary>  
        public bool IsUpdate
        {
            get
            {
                checkUpdate();
                return isUpdate;
            }
        }

        /// <summary>  
        /// 要檢查更新的檔案  
        /// </summary>  
        public string LoadFile
        {
            get { return loadFile; }
            set { loadFile = value; }
        }

        /// <summary>  
        /// 程式集新版本  
        /// </summary>  
        public string NewVerson
        {
            get { return newVerson; }
        }

        /// <summary>  
        /// 升級的名稱  
        /// </summary>  
        public string SoftName
        {
            get { return softName; }
            set { softName = value; }
        }

        #endregion

        /// <summary>  
        /// 檢查是否需要更新  
        /// </summary>  
        public void checkUpdate()
        {
            try
            {
                WebClient wc = new WebClient();
                Stream stream = wc.OpenRead(updateUrl);
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(stream);
                XmlNode list = xmlDoc.SelectSingleNode("Update");
                foreach (XmlNode node in list)
                {
                    if (node.Name == "Soft" && node.Attributes["Name"].Value.ToLower() == SoftName.ToLower())
                    {
                        foreach (XmlNode xml in node)
                        {
                            if (xml.Name == "Verson")
                                newVerson = xml.InnerText;
                            else
                                download = xml.InnerText;
                        }
                    }
                }

                Version ver = new Version(newVerson);
                Version verson = Assembly.LoadFrom(loadFile).GetName().Version;
                int tm = verson.CompareTo(ver);

                if (tm >= 0)
                    isUpdate = false;
                else
                    isUpdate = true;
            }
            catch (Exception ex)
            {
                throw new Exception("更新出現錯誤，請確認網路連線無誤後重試！");
            }
        }

        /// <summary>  
        /// 獲取要更新的檔案  
        /// </summary>  
        /// <returns></returns>  
        public override string ToString()
        {
            return this.loadFile;
        }
    }
}

View Code

主程式入口Program.cs：

using System;
using System.Windows.Forms;

namespace WinFormUpdaterDemo
{
    static class Program
    {
        /// <summary>
        /// 應用程式的主入口點。
        /// </summary>
        [STAThread]
        static void Main()
        {
            //檢查更新
            if (checkUpdateLoad())
            {
                Application.Exit();
                return;
            }
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Main());
        }

        public static bool checkUpdateLoad()
        {
            bool result = false;
            SoftUpdate app = new SoftUpdate(Application.ExecutablePath, "WinFormUpdaterDemo");
            try
            {
                if (app.IsUpdate && MessageBox.Show("檢查到新版本，是否更新？", "版本檢查", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                {
                    string path = Application.StartupPath;
                    System.Diagnostics.Process process = new System.Diagnostics.Process();
                    process.StartInfo.FileName = "AutoUpdater.exe";
                    process.StartInfo.WorkingDirectory = path;//要掉用得exe路徑例如:"C:\windows";               
                    process.StartInfo.CreateNoWindow = true;
                    process.Start();

                    result = true;
                }
                else
                {
                    result = false;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                result = false;
            }
            return result;
        }
    }
}

View Code

PS：更新程式的生成“輸出位置”最好設定在主程式裡，這樣就省去了每次生成後都要把升級程式檔案複製到主程式目錄裡。

更新程式Updater程式碼：

using ICSharpCode.SharpZipLib.Zip;
using System;
using System.IO;
using System.Windows.Forms;

namespace AutoUpdater
{
    public partial class Updater : Form
    {
        public Updater()
        {
            InitializeComponent();
        }

        private void Updater_Load(object sender, EventArgs e)
        {
            richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 清除歷史遺留檔案\n";
            //清除之前下載來的rar檔案
            if (File.Exists(Application.StartupPath + "\\Update_autoUpdate.zip"))
            {
                try
                {
                    File.Delete(Application.StartupPath + "\\Update_autoUpdate.zip");
                }
                catch (Exception) { }
            }
            if (Directory.Exists(Application.StartupPath + "\\autoupload"))
            {
                try
                {
                    Directory.Delete(Application.StartupPath + "\\autoupload", true);
                }
                catch (Exception) { }
            }

            richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 檢查服務端是否有新版本程式\n";
            //檢查服務端是否有新版本程式
            checkUpdate();
            timer1.Enabled = true;
        }
        SoftUpdate app = new SoftUpdate(Application.ExecutablePath, "WinFormUpdaterDemo");
        /// <summary>
        /// 檢查更新
        /// </summary>
        public void checkUpdate()
        {
            app.UpdateFinish += new UpdateState(app_UpdateFinish);
            try
            {
                if (app.IsUpdate)
                {
                    richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 開始下載更新檔案\n";
                    app.Update();
                }
                else
                {
                    richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 未檢測到新版本\n";
                    MessageBox.Show("未檢測到新版本!");
                    Application.Exit();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        /// <summary>
        /// 下載更新檔案完成後解壓檔案並覆蓋舊檔案完成更新
        /// </summary>
        void app_UpdateFinish()
        {
            //解壓下載後的檔案
            string path = app.FinalZipName;
            if (File.Exists(path))
            {
                //後改的 先解壓濾波zip植入ini然後再重新壓縮
                string dirEcgPath = Application.StartupPath + "\\" + "autoupload\\";
                if (!Directory.Exists(dirEcgPath))
                {
                    Directory.CreateDirectory(dirEcgPath);
                }
                richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 解壓下載後的檔案：" + path + "\n"; ;
                //開始解壓壓縮包
                UnZIP(path, dirEcgPath);
                richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 解壓成功\n"; ;

                try
                {
                    //複製新檔案替換舊檔案
                    richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 更新新檔案（替換舊檔案）\n";
                    DirectoryInfo TheFolder = new DirectoryInfo(dirEcgPath);
                    foreach (FileInfo NextFile in TheFolder.GetFiles())
                    {
                        File.Copy(NextFile.FullName, Application.StartupPath + "\\" + NextFile.Name, true);
                    }
                    richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 更新成功\n";
                    richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 刪除本次更新的殘留檔案\n";
                    Directory.Delete(dirEcgPath, true);
                    File.Delete(path);
                    richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 刪除成功\n";
                    //覆蓋完成 重新啟動程式
                    richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 啟動更新後的新程式\n";
                    path = Application.StartupPath;
                    System.Diagnostics.Process process = new System.Diagnostics.Process();
                    process.StartInfo.FileName = "WinFormUpdaterDemo.exe";
                    process.StartInfo.WorkingDirectory = path;//要掉用得exe路徑例如:"C:\windows";               
                    process.StartInfo.CreateNoWindow = true;
                    process.Start();
                    richTextBox1.Text += DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " 退出更新軟體\n";
                    //Application.Exit();
                }
                catch (Exception)
                {
                    MessageBox.Show("請關閉系統在執行更新操作!");
                    Application.Exit();
                }
            }
        }

        /// <summary>
        /// 定時器（用來更新進度條）
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timer1_Tick(object sender, EventArgs e)
        {
            label1.Text = "下載檔案進度:" + CommonMethod.autostep.ToString() + "%";
            this.progressBar1.Value = CommonMethod.autostep;
            if (CommonMethod.autostep == 100)
            {
                timer1.Enabled = false;
            }

        }

        /// <summary>
        /// 解壓檔案
        /// </summary>
        /// <param name="zipFilePath">壓縮檔案路徑</param>
        /// <param name="saveDirectory">解壓路徑</param>
        public static void UnZIP(string zipFilePath, string saveDirectory)
        {
            // Perform simple parameter checking.
            if (!File.Exists(zipFilePath))
            {
                return;
            }
            if (!Directory.Exists(saveDirectory))
            {
                //解壓後存放的 資料夾路徑
                Directory.CreateDirectory(saveDirectory);
            }

            using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath)))
            {

                ZipEntry theEntry;
                while ((theEntry = s.GetNextEntry()) != null)
                {
                    string directoryName = Path.GetDirectoryName(theEntry.Name);
                    string fileName = Path.GetFileName(theEntry.Name);

                    // create directory
                    if (directoryName.Length > 0)
                    {
                        //建立目錄
                        string saveDir = saveDirectory + directoryName;
                        Directory.CreateDirectory(saveDir);
                    }

                    if (fileName != String.Empty)
                    {
                        string saveFilePath = saveDirectory + theEntry.Name;
                        using (FileStream streamWriter = File.Create(saveFilePath))
                        {
                            int size = 2048;
                            byte[] data = new byte[2048];
                            while (true)
                            {
                                size = s.Read(data, 0, data.Length);
                                if (size > 0)
                                {
                                    streamWriter.Write(data, 0, size);
                                }
                                else
                                {
                                    break;
                                }
                            }
                        }
                    }
                }
            }

        }
    }
}

View Code

更新程式-更新處理類SoftUpdate.cs：

using System;
using System.IO;
using System.Net;
using System.Reflection;
using System.Xml;

namespace AutoUpdater
{
    /// <summary>  
    /// 更新完成觸發的事件  
    /// </summary>  
    public delegate void UpdateState();
    /// <summary>  
    /// 程式更新  
    /// </summary> 
    public class SoftUpdate
    {
        private string download;
        private const string updateUrl = "http://127.0.0.1:7000/update.xml";//升級配置的XML檔案地址  

        #region 建構函式
        public SoftUpdate() { }

        /// <summary>  
        /// 程式更新  
        /// </summary>  
        /// <param name="file">要更新的檔案</param>  
        public SoftUpdate(string file, string softName)
        {
            this.LoadFile = file;
            this.SoftName = softName;
        }
        #endregion

        #region 屬性
        private string loadFile;
        private string newVerson;
        private string softName;
        private bool isUpdate;

        /// <summary>  
        /// 或取是否需要更新  
        /// </summary>  
        public bool IsUpdate
        {
            get
            {
                checkUpdate();
                return isUpdate;
            }
        }

        /// <summary>  
        /// 要檢查更新的檔案  
        /// </summary>  
        public string LoadFile
        {
            get { return loadFile; }
            set { loadFile = value; }
        }

        /// <summary>  
        /// 程式集新版本  
        /// </summary>  
        public string NewVerson
        {
            get { return newVerson; }
        }

        /// <summary>  
        /// 升級的名稱  
        /// </summary>  
        public string SoftName
        {
            get { return softName; }
            set { softName = value; }
        }

        private string _finalZipName = string.Empty;

        public string FinalZipName
        {
            get { return _finalZipName; }
            set { _finalZipName = value; }
        }

        #endregion

        /// <summary>  
        /// 更新完成時觸發的事件  
        /// </summary>  
        public event UpdateState UpdateFinish;
        private void isFinish()
        {
            if (UpdateFinish != null)
                UpdateFinish();
        }

        /// <summary>  
        /// 下載更新  
        /// </summary>  
        public void Update()
        {
            try
            {
                if (!isUpdate)
                    return;
                WebClient wc = new WebClient();
                string filename = "";
                string exten = download.Substring(download.LastIndexOf("."));
                if (loadFile.IndexOf(@"\") == -1)
                    filename = "Update_" + Path.GetFileNameWithoutExtension(loadFile) + exten;
                else
                    filename = Path.GetDirectoryName(loadFile) + "\\Update_" + Path.GetFileNameWithoutExtension(loadFile) + exten;

                FinalZipName = filename;
                //wc.DownloadFile(download, filename);
                wc.DownloadFileAsync(new Uri(download), filename);
                wc.DownloadProgressChanged += new DownloadProgressChangedEventHandler(wc_DownloadProgressChanged);
                wc.DownloadFileCompleted += new System.ComponentModel.AsyncCompletedEventHandler(wc_DownloadFileCompleted);
                //wc.Dispose();

            }
            catch
            {
                throw new Exception("更新出現錯誤，網路連線失敗！");
            }
        }

        void wc_DownloadFileCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
        {
            (sender as WebClient).Dispose();
            if (e.Error != null)
                throw e.Error;
            else
                isFinish();
        }

        void wc_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
        {
            CommonMethod.autostep = e.ProgressPercentage;
            //Thread.Sleep(100);
        }

        /// <summary>  
        /// 檢查是否需要更新  
        /// </summary>  
        public void checkUpdate()
        {
            try
            {
                WebClient wc = new WebClient();
                Stream stream = wc.OpenRead(updateUrl);
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(stream);
                XmlNode list = xmlDoc.SelectSingleNode("Update");
                foreach (XmlNode node in list)
                {
                    if (node.Name == "Soft" && node.Attributes["Name"].Value.ToLower() == SoftName.ToLower())
                    {
                        foreach (XmlNode xml in node)
                        {
                            if (xml.Name == "Verson")
                                newVerson = xml.InnerText;
                            else
                                download = xml.InnerText;
                        }
                    }
                }

                Version ver = new Version(newVerson);
                Version verson = Assembly.LoadFrom(loadFile).GetName().Version;
                int tm = verson.CompareTo(ver);

                if (tm >= 0)
                    isUpdate = false;
                else
                    isUpdate = true;
            }
            catch (Exception ex)
            {
                throw new Exception("更新出現錯誤，請確認網路連線無誤後重試！");
            }
        }

        /// <summary>  
        /// 獲取要更新的檔案  
        /// </summary>  
        /// <returns></returns>  
        public override string ToString()
        {
            return this.loadFile;
        }
    }

    /// <summary>
    /// 全域性進度條變數
    /// </summary>
    public static class CommonMethod
    {
        public static int autostep;
    }
}

View Code

Web站點：

update.xml程式碼：

<?xml version="1.0" encoding="utf-8" ?>
<Update>
  <Soft Name="WinFormUpdaterDemo">
    <Verson>1.0.0.0</Verson>
    <DownLoad>http://127.0.0.1:7000/Update_autoUpdate.zip</DownLoad>
  </Soft>
</Update>

View Code

每次更新程式做以下操作即可：

修改主程式AssemblyInfo.cs中的版本號
把最新的程式打包成“Update_autoUpdate.zip”，放入站點。（可進行增量更新，但是暫時無法刪除檔案，可以在XML中加入刪除節點進行刪除檔案操作，後續會優化）
修改站點xml檔案版本號，使之和主程式AssemblyInfo.cs中的版本號一致

好啦，這樣自動更新程式就做好啦。

效果演示：

本文參考了很多大佬的分享，主要參考：

https://blog.csdn.net/xiaodong728/article/details/81083239?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.control&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.control