winform(C#)程序如何实现在线更新软件

有winform程序 LWH exe,现需要实现远程升级功能,参考网上的相关方案实现步骤如下: 1、在远程服务器上建立FTP站点,将更新文件及更新信息放到相关

有winform程序 LWH.exe,现需要实现远程升级功能,参考网上的相关方案实现步骤如下:

1、在远程服务器上建立FTP站点,将更新文件及更新信息放到相关文件夹中

其中,updates.json内容如下:

{
  "latestversion": "3.0.3",
  "downloadurl": "http://***.***.***.***:****/lwh/update303.zip",
  "changelog": "更改注册机制",
  "mandatory": true
}

latestversion代表提供更新的版本号,downloadurl表示更新包的下载路径,这里将需要更新的文件压缩成zip文件

update303.zip即为需要更新的文件

2、在工程下App.config中添加key为Version的字段来表示当前软件版本号

<configuration>
    ...
  <appSettings>
    <add key="Version" value="3.0.2" />
  </appSettings>
</configuration>

在生成的文件中该.config对应的是 应用程序名.exe.config,比如我的应用程序 是LWH.exe,则在打包更新包时应将LWH.exe.config一起打包,这样更新完软件后,软件版本号则更新到新的版本号

程序中获取当前版本号的代码为:

 
version = System.Configuration.ConfigurationManager.AppSettings["Version"].ToString();

 

3、在解决方案中,新建一个winform应用项目update,用以从服务器上下载更新包,并解压到指定文件夹替换相关文件实现更新

放置一个progressBar用来表示下载进度,放置一个label用来进行提示,代码如下:

        private string url;//下载路径
 
        public static FastZip fz = new FastZip();
 
        public update(string[] args)
        {
            InitializeComponent();
            if (args == null || args.Count() == 0)
                url = "http://***.***.***.***:**/lwh/update.zip";//没有传入地址时使用默认地址
            else
                url = args[0];
        }
 
        private void update_Load(object sender, EventArgs e)
        {
            updateprocess();
        }
        private void  updateprocess()
        {
            try
            {
                WebClient wc = new WebClient();
                wc.DownloadProgressChanged += wc_DownloadProgressChanged;
                wc.DownloadFileAsync(new Uri(url), Application.StartupPath + "\\update.zip");
            }
            catch(Exception er)
            {
                label1.Text = "下载失败:"+er.Message;
            }
        }
        private void wc_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
        {
            Action act = () =>
            {
                this.progressBar1.Value = e.ProgressPercentage;
                this.label1.Text = "正在下载...";
                //this.label1.Text = e.ProgressPercentage + "%";
 
            };
            this.Invoke(act);
 
            if (e.ProgressPercentage == 100)
            {
                //下载完成之后开始覆盖
                this.label1.Text = "正在解压...";
 
                try
                {
                    var result = Compress(Application.StartupPath, Application.StartupPath + "\\update.zip",null);
                    //var result = unZip(Application.StartupPath + "\\update.rar", @"..\LWH\");
                    if (result== "Success!")
                    {
                        progressBar1.Value = 100;
                        this.label1.Text = "准备安装...";
 
                        //备份之前数据库
                        var dbFile = Application.StartupPath + "/Data/TestDb.db";
                        if (File.Exists(dbFile))
                        {
                            var bakFile = Application.StartupPath + "/backup/" + DateTime.Now.ToString("yyyyMMddHHmmssms") + ".bak";
                            var bakDirectory = Path.GetDirectoryName(bakFile);
                            DirectoryInfo directoryInfo = new DirectoryInfo(bakDirectory);
                            if (!directoryInfo.Exists)
                            {
                                directoryInfo.Create();
                            }
                            else
                            {
                                //删除7天前的备份文件
                                var files = directoryInfo.GetFiles();
                                if (files != null && files.Length > 0)
                                {
                                    foreach (var file in files)
                                    {
                                        if (file.CreationTime.AddDays(7) < DateTime.Now)
                                        {
                                            file.Delete();
                                        }
                                    }
                                }
                            }
                            //备份文件
                            File.Move(dbFile, bakFile);
                        }
                        this.label1.Text = "更新完成";
                        var mainFile =Application.StartupPath+"/LWH.exe";//重新启动软件
                        Process p = new Process();
                        p.StartInfo.UseShellExecute = false;
                        p.StartInfo.RedirectStandardOutput = true;
                        p.StartInfo.FileName = mainFile;
                        p.StartInfo.CreateNoWindow = true;
                        p.Start();
                        this.Close();
                    }
                    else
                    {
                        MessageBox.Show("更新失败:"+result);
                        this.Close();
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("更新失败", ex.Message);
                    this.Close();
                }
 
            }
        }
        /// <summary>
        /// 解压Zip
        /// </summary>
        /// <param name="DirPath">解压后存放路径</param>
        /// <param name="ZipPath">Zip的存放路径</param>
        /// <param name="ZipPWD">解压密码(null代表无密码)</param>
        /// <returns></returns>
        public string Compress(string DirPath, string ZipPath, string ZipPWD)
        {
            string state = "Fail!";
            try
            {
                fz.Password = ZipPWD;
                fz.ExtractZip(ZipPath, DirPath, "");
 
                state = "Success!";
            }
            catch (Exception ex)
            {
                state += "," + ex.Message;
            }
            return state;
        }

4、将生成的update.exe拷贝到主应用程序(LWH.exe)软件目录下以供调用,在LWH的检测更新按键下加入以下代码:

private void buttonXUpdate_Click(object sender, EventArgs e)
        {
            try
            {
                string rXml = string.Empty;
                HttpWebRequest myHttpWebRequest = System.Net.WebRequest.Create(backdata.updateUrl) as HttpWebRequest;
                myHttpWebRequest.KeepAlive = false;
                myHttpWebRequest.AllowAutoRedirect = false;
                myHttpWebRequest.UserAgent = "Mozilla/5.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)";
                myHttpWebRequest.Timeout = 5000;
                myHttpWebRequest.ContentType = "application/x-www-form-urlencoded;charset=utf-8";
                using (HttpWebResponse res = (HttpWebResponse)myHttpWebRequest.GetResponse())
                {
                    if (res.StatusCode == HttpStatusCode.OK || res.StatusCode == HttpStatusCode.PartialContent)//返回为200或206
                    {
                        string dd = res.ContentEncoding;
                        System.IO.Stream strem = res.GetResponseStream();
                        System.IO.StreamReader r = new System.IO.StreamReader(strem);
                        rXml = r.ReadToEnd();
                    }
                    else
                    {
                        MessageBox.Show("无法连接到远程服务器");
                        return;
                    }
                }
                updateInf updateinf = JsonConvert.DeserializeObject<updateInf>(rXml);
                if (string.Compare(updateinf.latestversion, version) > 0)
                {
                    if (MessageBox.Show("有新版本:" + updateinf.latestversion + "\r\n" + "更新内容:" + updateinf.changelog + "\r\n是否进行更新?", "提示", MessageBoxButtons.OKCancel) == DialogResult.Cancel)
                    {
                        return;
                    }
                    var mainFile = Application.StartupPath + @"\update.exe";
                    Process p = new Process();
                    p.StartInfo.UseShellExecute = false;
                    p.StartInfo.RedirectStandardOutput = true;
                    p.StartInfo.FileName = mainFile;
                    p.StartInfo.CreateNoWindow = true;
                    p.StartInfo.Arguments = updateinf.downloadurl;
                    p.Start();
                    this.Close();
                }
                else
                {
                    MessageBox.Show("没有更新版本了!");
                }
                
            }
            catch(Exception er)
            {
                MessageBox.Show("检查更新出现错误:" + er.Message);
            }
        }

updateInf为定义的更新文件信息类:

 public class updateInf
    {
        public string latestversion;
        public string downloadurl;
        public string changelog;
        public string mandatory;
    }

点击“检查更新”按键后,首先从服务器读取updates.json,解析出服务器上的版本号和当前软件的版本进行比对,如果比当前版本新,则提示进行更新,如果选择进行更新则启动update.exe并传入updates.json中提供的更新包下载地址,启动后立即关闭主程序。

 


最后,可以对update稍作修改,在启动的时候传入参数中再增加exe名称,如

public update(string[] args)
        {
            InitializeComponent();
            if (args == null || args.Count() < 2)
            {
                //url = "http://116.63.143.64:9010/lwh/update.zip";
            }
            else
            {
                url = args[0];
                exename = args[1];
            }
        }

升级完毕时,重启程序 改成:

if (exename != "")
{
      var mainFile = Application.StartupPath +"/"+ exename;
      Process p = new Process();
      p.StartInfo.UseShellExecute = false;
      p.StartInfo.RedirectStandardOutput = true;
      p.StartInfo.FileName = mainFile;
      p.StartInfo.CreateNoWindow = true;
      p.Start();
      this.Close();
}

这就可以将update很便捷地添加到其他工程里面实现远程升级功能

引用:https://blog.csdn.net/luckyzjian/article/details/108421143