用c# 自动更新程序

作者：冰封一夏
出处：http://www.cnblogs.com/bfyx/
HZHControls官网：http://www.hzhcontrols.com

首先看获取和更新的接口

更新程序Program.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Update
{
  static class Program
  {
    /// 

    /// 更新程序启动后复制自身，使用副本进行更新
    /// -h 不显示界面
    /// -c 不使用copy更新程序
    /// -d 更新完成删除自身，通常用在copy的更新程序
    /// -b 更新下载到备份文件，不替换原文件
    /// -r 更新完成运行的文件，下一个参数为文件路径
    /// -k 如果系统正在运行则干掉
    /// 
    [STAThread]
    static void Main(string[] args)
    {
      Application.EnableVisualStyles();
      Application.SetCompatibleTextRenderingDefault(false);
      Application.ThreadException += Application_ThreadException;

      List lst = args.ToList();
      if (!lst.Contains("-b") && !lst.Contains("-k"))
      {
 //这里判断成程序是否退出
 if (Process.GetProcessesByName("serviceclient").Length > 0)
 {
   MessageBox.Show("服务正在运行，请退出后重试。", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
   return;
 }
      }

      if (lst.Contains("-k"))
      {
 var ps = Process.GetProcessesByName("serviceclient");
 if (ps.Length > 0)
 {
   ps[0].Kill();
 }
      }

      //副本更新程序运行
      if (!lst.Contains("-c"))//不存在-c 则进行复制运行
      {
 string strFile = Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), Guid.NewGuid().ToString() + ".exe");
 File.Copy(Application.ExecutablePath, strFile);
 lst.Add("-c");
 lst.Add("-d");
 Process.Start(strFile, string.Join(" ", lst));
      }
      else
      {
 Action actionAfter = null;
 //将更新文件替换到当前目录
 if (!lst.Contains("-b"))
 {
   actionAfter = () =>
   {
     string strUpdatePath = Path.Combine(System.AppDomain.CurrentDomain.baseDirectory, "UpdateCache\");
     if (Directory.Exists(strUpdatePath) && Directory.GetFiles(strUpdatePath).Length > 0)
     {
CopyFile(strUpdatePath, System.AppDomain.CurrentDomain.baseDirectory, strUpdatePath);
if (File.Exists(Path.Combine(strUpdatePath, "ver.xml")))
  File.Copy(Path.Combine(strUpdatePath, "ver.xml"), Path.Combine(System.AppDomain.CurrentDomain.baseDirectory, "ver.xml"), true);
Directory.Delete(strUpdatePath, true);
     }
   };
 }
 try
 {
   //隐藏运行
   if (!lst.Contains("-h"))
   {
     Application.Run(new FrmUpdate(actionAfter, true));
   }
   else
   {
     FrmUpdate frm = new FrmUpdate(actionAfter);
     frm.Down();
   }
 }
 catch (Exception ex)
 { }
 //运行更新后的文件
 if (lst.Contains("-r"))
 {
   int index = lst.IndexOf("-r");
   if (index + 1 < lst.Count)
   {
     string strFile = Path.Combine(System.AppDomain.CurrentDomain.baseDirectory, lst[index + 1]);
     if (File.Exists(strFile))
     {
Process.Start(strFile, "-u");
     }
   }
 }
 //删除自身
 if (lst.Contains("-d"))
 {
   DeleteItself();
 }
      }
      Application.Exit();
      Process.GetCurrentProcess().Kill();
    }

    private static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
    {
      throw new NotImplementedException();
    }
    private static void CopyFile(string strSource, string strTo, string strbasePath)
    {
      string[] files = Directory.GetFiles(strSource);
      foreach (var item in files)
      {
 string strFileName = Path.GetFileName(item).ToLower();

 if (strFileName == "ver.xml ")
 {
   continue;
 }
 //如果是版本文件和文件配置xml则跳过，复制完成后再替换这2个文件
 string strToPath = Path.Combine(strTo, item.Replace(strbasePath, ""));
 var strdir = Path.GetDirectoryName(strToPath);
 if (!Directory.Exists(strdir))
 {
   Directory.CreateDirectory(strdir);
 }
 File.Copy(item, strToPath, true);
      }
      string[] dires = Directory.GetDirectories(strSource);
      foreach (var item in dires)
      {
 CopyFile(item, strTo, strbasePath);
      }
    }


    private static void DeleteItself()
    {
      ProcessStartInfo psi = new ProcessStartInfo("cmd.exe", "/C ping 1.1.1.1 -n 1 -w 1000 > Nul & Del " + Application.ExecutablePath);
      psi.WindowStyle = ProcessWindowStyle.Hidden;
      psi.CreateNoWindow = true;
      Process.Start(psi);
    }
  }
}

更新程序界面

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml;

namespace HW.Print.ServiceClient.Update
{
  public partial class FrmUpdate : Form
  {
    private static string m_strkey = "sdfadsfdsfasdf";//定义一个密钥用以验证权限，不适用ticket
    Random r = new Random();
    Action m_actionAfter = null;
    bool m_blnShow = false;
    public FrmUpdate(Action actionAfter, bool blnShow = false)
    {
      m_blnShow = blnShow;
      m_actionAfter = actionAfter;
      InitializeComponent();
    }

    private void Form1_VisibleChanged(object sender, EventArgs e)
    {
      if (Visible)
      {
 var rect = Screen.PrimaryScreen.WorkingArea;
 this.Location = new Point(rect.Right - this.Width, rect.Bottom - this.Height);
      }
    }

    private void FrmUpdate_Load(object sender, EventArgs e)
    {
      Thread th = new Thread(() =>
      {
 Down();
 this.BeginInvoke(new MethodInvoker(delegate ()
 {
   this.Close();
 }));
      });
      th.IsBackground = true;
      th.Start();
    }
    private string CheckIsXP(string strUrl)
    {
      bool blnXp = false;
      if (Environment.OSVersion.Version.Major == 5 && Environment.OSVersion.Version.Minor == 1)
      {
 blnXp = true;
      }
      if (blnXp && strUrl.StartsWith("https"))
      {
 strUrl = "http" + strUrl.Substring(5);
      }
      return strUrl;
    }

    private void SetProcess(string strTitle, int? value, int? maxValue = null)
    {
      this.lblMsg.BeginInvoke(new MethodInvoker(delegate ()
      {
 if (maxValue.HasValue)
 {
   this.progressBar1.Maximum = maxValue.Value;
 }
 if (value.HasValue)
 {
   this.progressBar1.Value = value.Value;
 }
 if (!string.IsNullOrEmpty(strTitle))
 {
   this.lblMsg.Text = strTitle;
 }
 lblValue.Text = this.progressBar1.Value + "/" + this.progressBar1.Maximum;
      }));
    }

    public void Down()
    {
      if (m_blnShow)
 SetProcess("正在检查版本", null);
      try
      {
 //先清理掉旧文件
 try
 {
   if (Directory.Exists(System.AppDomain.CurrentDomain.baseDirectory + "UpdateCache"))
   {
     Directory.Delete(System.AppDomain.CurrentDomain.baseDirectory + "UpdateCache", true);
   }
 }
 catch { }
 if (!File.Exists(System.AppDomain.CurrentDomain.baseDirectory + "setting.dat"))
 {
   Log.WriteLog("配置文件setting.dat不存在！");
   return;
 }
 string strFileUrl = File.ReadAllText(System.AppDomain.CurrentDomain.baseDirectory + "setting.dat");


 strFileUrl = CheckIsXP(strFileUrl);
 //获取列表文件
 string json = HttpGet(strFileUrl.Trim('/') + "/getUpdaterList?key=" + Encrypt(m_strkey), Encoding.UTF8);
 ResponseMessage rm = fastJSON.JSON.ToObject(json);
 if (rm == null)
 {
   Log.WriteLog("获取更新文件错误");
   return;
 }
 if (!rm.Result)
 {
   Log.WriteLog("获取更新文件错误:" + rm.ErrorMessage);
   return;
 }
 //云列表
 Dictionary lstNewFiles = new Dictionary();
 Xmldocument doc = new Xmldocument();
 doc.LoadXml(rm.KeyValue);
 var documentElement = doc.documentElement;
 var nodes = documentElement.SelectNodes("//files/file");
 foreach (XmlNode item in nodes)
 {
   lstNewFiles[item.InnerText] = DateTime.Parse(item.Attributes["time"].Value);
 }

 List lstUpdateFile = new List();
 string locationXml = System.AppDomain.CurrentDomain.baseDirectory + "ver.xml";
 if (!File.Exists(locationXml))
 {
   lstUpdateFile = lstNewFiles.Keys.ToList();
 }
 else
 {
   Xmldocument docLocation = new Xmldocument();
   docLocation.Load(locationXml);
   var documentElementLocation = docLocation.documentElement;
   var nodesLocation = documentElementLocation.SelectNodes("//files/file");
   foreach (XmlNode item in nodesLocation)
   {
     if (!lstNewFiles.ContainsKey(item.InnerText))
     {
lstUpdateFile.Add(item.InnerText);
     }
     else if (lstNewFiles[item.InnerText] < DateTime.Parse(item.Attributes["time"].Value))
     {
lstUpdateFile.Add(item.InnerText);
     }
   }
 }
 if (lstUpdateFile.Count > 0)
 {
   string strRootPath = System.AppDomain.CurrentDomain.baseDirectory + "UpdateCache";
   if (!System.IO.Directory.Exists(strRootPath))
   {
     System.IO.Directory.CreateDirectory(strRootPath);
   }
   SetProcess("", null, lstUpdateFile.Count);
   for (int i = 0; i < lstUpdateFile.Count; i++)
   {
     if (m_blnShow)
SetProcess("正在下载：" + lstUpdateFile[i], i + 1);

     string filejson = HttpGet(strFileUrl.Trim('/') + "/downloadUpdaterFile?key=" + Encrypt(m_strkey) + "&file=" + System.Web.HttpUtility.UrlEncode(lstUpdateFile[i]), Encoding.UTF8);
     ResponseMessage filerm = fastJSON.JSON.ToObject(filejson);
     if (rm == null)
     {
Log.WriteLog("下载更新文件错误");
return;
     }
     if (!rm.Result)
     {
Log.WriteLog("下载更新文件错误:" + rm.ErrorMessage);
return;
     }

     string saveFile = Path.Combine(strRootPath, lstUpdateFile[i]);
     if (!Directory.Exists(Path.GetDirectoryName(saveFile)))
     {
System.IO.Directory.CreateDirectory(Path.GetDirectoryName(saveFile));
     }
     string strbase64 = filerm.KeyValue;  
     MemoryStream stream = new MemoryStream(Convert.Frombase64String(strbase64));
     FileStream fs = new FileStream(strRootPath + "\" + lstUpdateFile[i], FileMode.OpenOrCreate, FileAccess.Write);
     byte[] b = stream.ToArray();
     fs.Write(b, 0, b.Length);
     fs.Close();

   }

   doc.Save(System.AppDomain.CurrentDomain.baseDirectory + "UpdateCache//ver.xml");

   if (m_actionAfter != null)
   {
     if (m_blnShow)
SetProcess("替换文件", null);
     m_actionAfter();
   }

   if (m_blnShow)
     SetProcess("更新完成。", null);
 }
 else
 {
   if (m_blnShow)
     SetProcess("没有需要更新的文件。", null);
 }
      }
      catch (Exception ex)
      {
 if (m_blnShow)
   SetProcess("获取更新列表失败：" + ex.Message, null);
 Log.WriteLog(ex.ToString());
      }
      finally
      {
 if (m_blnShow)
   Thread.Sleep(3000);
      }
    }

    private static string encryptKey = "111222333444555666";

    //默认密钥向量
    private static byte[] Keys = { 0x41, 0x72, 0x65, 0x79, 0x6F, 0x75, 0x6D, 0x79, 0x53, 0x6E, 0x6F, 0x77, 0x6D, 0x61, 0x6E, 0x3F };
    /// 

    /// 加密
    /// 
    /// 
    /// 
    public static string Encrypt(string encryptString)
    {
      if (string.IsNullOrEmpty(encryptString))
 return string.Empty;
      RijndaelManaged rijndaelProvider = new RijndaelManaged();
      rijndaelProvider.Key = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 32));
      rijndaelProvider.IV = Keys;
      ICryptoTransform rijndaelEncrypt = rijndaelProvider.CreateEncryptor();

      byte[] inputData = Encoding.UTF8.GetBytes(encryptString);
      byte[] encryptedData = rijndaelEncrypt.TransformFinalBlock(inputData, 0, inputData.Length);

      return System.Web.HttpUtility.UrlEncode(Convert.Tobase64String(encryptedData));
    }
    public static string HttpGet(string url, Encoding encodeing, Hashtable headht = null)
    {
      HttpWebRequest request;

      //如果是发送HTTPS请求 
      //if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
      //{
      //ServicePointManager.ServerCertificatevalidationCallback = new RemoteCertificatevalidationCallback(CheckValidationResult);
      request = WebRequest.Create(url) as HttpWebRequest;
      request.ServicePoint.Expect100Continue = false;
      request.ProtocolVersion = HttpVersion.Version11;
      request.KeepAlive = true;
      //}
      //else
      //{
      //  request = WebRequest.Create(url) as HttpWebRequest;
      //}
      request.Method = "GET";
      //request.ContentType = "application/x-www-form-urlencoded";
      request.Accept = "*/*";
      request.Timeout = 30000;
      request.AllowAutoRedirect = false;
      WebResponse response = null;
      string responseStr = null;
      if (headht != null)
      {
 foreach (DictionaryEntry item in headht)
 {
   request.Headers.Add(item.Key.ToString(), item.Value.ToString());
 }
      }

      try
      {
 response = request.GetResponse();

 if (response != null)
 {
   StreamReader reader = new StreamReader(response.GetResponseStream(), encodeing);
   responseStr = reader.ReadToEnd();
   reader.Close();
 }
      }
      catch (Exception)
      {
 throw;
      }
      return responseStr;
    }
  }
}

定义服务端接口，你可以用任意接口都行，我这里用webapi

获取文件列表

[HttpGet]
    public HttpResponseMessage GetUpdaterList(string key)
    {
      HttpResult httpResult = new HttpResult();
      if (!CheckKey(key))
      {
 httpResult.KeyValue = "";
 httpResult.Result = false;
 httpResult.ErrorMessage = "无权限访问";
      }
      else
      {
 //获取printupdate目录下update.exe的修改日期返回
 string path = Path.Combine(HttpRuntime.AppDomainAppPath, "printupdate");
 StringBuilder strXml = new StringBuilder();
 strXml.AppendLine("");
 strXml.AppendLine("");
 if (Directory.Exists(path))
 {
   string[] fs = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories);
   var _p = path.ToLower().Trim().Length + 1;
   foreach (var item in fs)
   {
     var dt = File.GetLastAccessTime(item);
     strXml.AppendLine("" + item.Substring(_p) + "");
   }
 }
 strXml.AppendLine("");

 httpResult.KeyValue = strXml.ToString();
 httpResult.Result = true;
 httpResult.ErrorMessage = "";
      }
      return new HttpResponseMessage { Content = new StringContent(httpResult.ToJson(), Encoding.GetEncoding("UTF-8"), "application/json") };
    }

定义服务端接口，你可以用任意接口都行，我这里用webapi

获取文件列表

[HttpGet]
    public HttpResponseMessage GetUpdaterList(string key)
    {
      HttpResult httpResult = new HttpResult();
      if (!CheckKey(key))
      {
 httpResult.KeyValue = "";
 httpResult.Result = false;
 httpResult.ErrorMessage = "无权限访问";
      }
      else
      {
 //获取printupdate目录下update.exe的修改日期返回
 string path = Path.Combine(HttpRuntime.AppDomainAppPath, "printupdate");
 StringBuilder strXml = new StringBuilder();
 strXml.AppendLine("");
 strXml.AppendLine("");
 if (Directory.Exists(path))
 {
   string[] fs = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories);
   var _p = path.ToLower().Trim().Length + 1;
   foreach (var item in fs)
   {
     var dt = File.GetLastAccessTime(item);
     strXml.AppendLine("" + item.Substring(_p) + "");
   }
 }
 strXml.AppendLine("");

 httpResult.KeyValue = strXml.ToString();
 httpResult.Result = true;
 httpResult.ErrorMessage = "";
      }
      return new HttpResponseMessage { Content = new StringContent(httpResult.ToJson(), Encoding.GetEncoding("UTF-8"), "application/json") };
    }

下载文件，我这里将文件序列号为base64字符串了，你可以直接返回文件流也行

[HttpGet]
    public HttpResponseMessage DownloadUpdaterFile(string key, string file)
    {
      HttpResult httpResult = new HttpResult();
      if (!CheckKey(key))
      {
 httpResult.KeyValue = "";
 httpResult.Result = false;
 httpResult.ErrorMessage = "无权限访问";
      }
      else
      {
 string path = Path.Combine(HttpRuntime.AppDomainAppPath + "printupdate", file);
 if (!File.Exists(path))
 {
   httpResult.KeyValue = "";
   httpResult.Result = false;
   httpResult.ErrorMessage = "文件不存在";
 }
 else
 {
   httpResult = ConvertTobase64Type(path);
 }
      }
      return new HttpResponseMessage { Content = new StringContent(httpResult.ToJson(), Encoding.GetEncoding("UTF-8"), "application/json") };

    }

HttpResult ConvertTobase64Type(string fileName)
    {
      HttpResult httpResult = new HttpResult();
      var byts = File.ReadAllBytes(fileName);
      httpResult.KeyValue = Convert.Tobase64String(byts);
      return httpResult;
    }

 bool CheckKey(string key)
     {
return key == Encryption.Encrypt(m_strkey);
     }

private static string encryptKey = "111222333444";

    //默认密钥向量
    private static byte[] Keys = { 0x41, 0x72, 0x65, 0x79, 0x6F, 0x75, 0x6D, 0x79, 0x53, 0x6E, 0x6F, 0x77, 0x6D, 0x61, 0x6E, 0x3F };
    /// 

    /// 加密
    /// 
    /// 
    /// 
    public static string Encrypt(string encryptString)
    {
      if (string.IsNullOrEmpty(encryptString))
 return string.Empty;
      RijndaelManaged rijndaelProvider = new RijndaelManaged();
      rijndaelProvider.Key = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 32));
      rijndaelProvider.IV = Keys;
      ICryptoTransform rijndaelEncrypt = rijndaelProvider.CreateEncryptor();

      byte[] inputData = Encoding.UTF8.GetBytes(encryptString);
      byte[] encryptedData = rijndaelEncrypt.TransformFinalBlock(inputData, 0, inputData.Length);

      return Convert.Tobase64String(encryptedData);
    }

需要注意的地方：

1、我这里用到了json，那么不能直接饮用json的dll文件，会出现更新时候占用的问题，可以使用fastjson的开源代码，放进来解决，你可以直接使用xml格式的返回内容，这样就不需要json了，这样更方便

2、如果你的下载接口是返回的文件流，那么你更新程序里面直接接收流保存文件就行了

3、Program.cs里面，停止服务的功能，其实是可以通过传递参数的形式来停止，我这里写死了，你们根据自己需求修改

效果

 你可以根据自己的需求，修改下界面效果，这是最简单的示例界面而已。

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