通过web对.exe程序进行更新和修改

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通过web对.exe程序进行更新和修改

2024-09-16 05:40:46 219人阅读

实现功能：通过网站更新用户的软件，需要联网，也可以通过本地网站更新局域网用户软件。

根本实现：1.一个网站（我用的是自己的www.aq36.xyz ，本地就可以，可以用localhost）然后运行update.exe->{通过update.xml获取网址，然后查看当前版本号和网站的server.xml最高版本号对比。然后判断是否更新}。

2.更新就下载zip文件，解压替换并删除。

3.更新update.xml文档版本信息，跟新结束。

主要代码：

1.解析xml文件：

/// <summary>
        /// 载入并解析XML
        /// </summary>
        private void LoadXml()
        {
            XmlDocument document = new XmlDocument();
            try
            {
                document.Load(updateurl + "Server.xml");
                XmlNode node = document.SelectSingleNode("//updates");

                //获取最新版本号
                version = Convert.ToInt32(node.Attributes["version"].Value);

                //所有需要升级文件大小,文件列表，sql列表
                XmlNodeList updateList = document.SelectNodes("//updates//update");
                foreach (XmlNode n in updateList)
                {
                    long tempVersion = Convert.ToInt32(n.Attributes["version"].Value);
                    long tempSize = Convert.ToInt64(n.Attributes["size"].Value);
                    if (tempVersion > localversion && tempVersion <= version)
                    {
                        allsize += tempSize;
                        versions.Add(tempVersion.ToString());
                        //获取升级文件列表
                        XmlNodeList fileList = n.SelectNodes("//update[@version=‘" + tempVersion + "‘]//files//file");
                        foreach (XmlNode n1 in fileList)
                        {
                            files.Add(n1.InnerText);
                        }
                        //获取执行的SQL语句列表
                        XmlNodeList sqlList = n.SelectNodes("//update[@version=‘" + tempVersion + "‘]//sqls//sql");
                        foreach (XmlNode n2 in sqlList)
                        {
                            sqls.Add(n2.InnerText);
                        }
                        //升级的提示信息
                        XmlNodeList msgList = n.SelectNodes("//update[@version=‘" + tempVersion + "‘]//msg");
                        foreach (XmlNode n3 in msgList)
                        {
                            msg += string.Format(CultureInfo.InvariantCulture, "版本【{0}】 {1}", new object[] { tempVersion, n3.InnerText.Replace("\r\n\t\t", "") }) + "\r\n";
                        }
                    }

                }

            }
            catch (Exception e)
            {
                //Console.WriteLine(e.Message);
                MessageBox.Show("连接升级服务器失败，请重试！", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

2.下载文件：

 private void DownloadFile(int index)
        {
            try
            {
                downindex++;
                filename = files[index];
                //LabelNow.Text = "开始下载版本【" + versions[index] + "】" + filename;
                LabelAll.Text = string.Format(CultureInfo.InvariantCulture, "升级进度 {0}/{1}  [ {2} ]", new object[] { downindex, files.Count, this.ConvertSize(allsize) });
                PBNow.Value = 0;
                downWebClient.DownloadFileAsync(new Uri(updateurl + filename), Application.StartupPath + "/temp/" + filename);

            }
            catch (WebException exception)
            {
                MessageBox.Show(exception.Message, "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

3.开始升级：

 private void StartUpdate()
        {
            if (localversion >= version)
            {
                UpdateCompleted(0);
                return;
            }
            this.downWebClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(DownloadProgressChanged);
            this.downWebClient.DownloadFileCompleted += new AsyncCompletedEventHandler(DownloadFileCompleted);
            if (this.allsize == 0L || files == null || files.Count == 0)
            {
                this.UpdateCompleted(0);
            }
            if (files != null && files.Count > 0)
            {
                DownloadFile(0);
            }

        }

4.下载完成并更改update.xml

  private void DownloadFileCompleted(object wcsender, AsyncCompletedEventArgs ex)
        {
            if (ex.Error != null)
            {
                MessageBox.Show(ex.Error.Message, "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Hand);
            }
            else
            {
                if (File.Exists(Application.StartupPath + @"\" + this.filename))
                {
                    File.Delete(Application.StartupPath + @"\" + this.filename);
                }
                File.Move(Application.StartupPath + @"\temp\" + this.filename, Application.StartupPath + @"\" + this.filename);
                new FastZip().ExtractZip(Application.StartupPath + @"\" + this.filename, Application.StartupPath + @"\", "");
                File.Delete(Application.StartupPath + @"\" + this.filename);
                this.downedsize += this.filesize;
                if (this.files.Count > this.downindex)
                {
                    this.DownloadFile(this.downindex);
                }
                else
                {
                    XmlTextWriter writer = new XmlTextWriter(Application.StartupPath + @"\update.xml", null)
                    {
                        Formatting = Formatting.Indented,
                        Indentation = 4
                    };
                    writer.WriteStartDocument();
                    writer.WriteStartElement("update");
                    writer.WriteStartElement("ProcessName");
                    writer.WriteString(this.ProcessName);
                    writer.WriteEndElement();
                    writer.WriteStartElement("version");
                    writer.WriteString(this.version.ToString());
                    writer.WriteEndElement();
                    writer.WriteStartElement("url");
                    writer.WriteString(this.updateurl);
                    writer.WriteEndElement();
                    writer.WriteEndElement();
                    writer.WriteEndDocument();
                    writer.Flush();
                    writer.Close();
                    if (!string.IsNullOrEmpty(this.msg))
                    {
                        MessageBox.Show(this.msg, "升级提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                    }
                    this.UpdateCompleted(1);
                }
            }
        }