转载升级程序的制作方法

收藏原帖地址：http://blog.csdn.net/chendazhi/archive/2006/05/09/715542.aspx

升级程序的制作有多种方法，下面介绍一种用Web Services制作的升级程序。通过Web Services 升级程序就象读写本机文件一样简单。所以我就直接给出代码。

Web Services部分代码：

using System;

using System.Web;

using System.Web.Services;

using System.Web.Services.Protocols;

using System.IO;

[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

public class Service : System.Web.Services.WebService

{

public Service()

{

//如果使用设计的组件，请取消注释以下行

//InitializeComponent();

}

/// <summary>

/// 需要升级文件的服务器路径

/// </summary>

private const string UpdateServerPath ="d:\\Debug";

[WebMethod(Description = "返回服务器上程序的版本号")]

public string ServerVer()

{

return "4.0";

}

[WebMethod(Description = "返回需更新的文件")]

public string[] NewFiles()

{

DirectoryInfo di = new DirectoryInfo(UpdateServerPath);

FileInfo[] fi = di.GetFiles();

int intFiles= fi.Length;

string[] myNewFiles = new string[intFiles];

int i = 0;

foreach (FileInfo fiTemp in fi)

{

myNewFiles[i] = fiTemp.Name;

System.Diagnostics.Debug.WriteLine(fiTemp.Name);

i++;

}

return myNewFiles;

}

[WebMethod(Description = "返回需更新的文件的大小")]

public int AllFileSize()

{

int filesize = 0;

string[] files = Directory.GetFiles(UpdateServerPath);

foreach (string file in files)

{

FileInfo myInfo = new FileInfo(file);

filesize += (int)myInfo.Length / 1024;

}

return filesize;

}

[WebMethod(Description = "返回给定文件的字节数组")]

public byte[] GetNewFile(string requestFileName)

{

///得到服务器端的一个文件

if (requestFileName != null || requestFileName != "")

return getBinaryFile(UpdateServerPath + "\\"+requestFileName);

else

return null;

}

/// <summary>

/// 返回所给文件路径的字节数组。

/// </summary>

/// <param name="filename"></param>

/// <returns></returns>

private byte[] getBinaryFile(string filename)

{

if (File.Exists(filename))

{

try

{

//打开现有文件以进行读取。

FileStream s = File.OpenRead(filename);

return ConvertStreamToByteBuffer(s);

}

catch

{

return new byte[0];

}

else

{

return new byte[0];

}

/// <summary>

/// 把给定的文件流转换为二进制字节数组。

/// </summary>

/// <param name="theStream"></param>

/// <returns></returns>

private byte[] ConvertStreamToByteBuffer(System.IO.Stream theStream)

{

int b1;

System.IO.MemoryStream tempStream = new System.IO.MemoryStream();

while ((b1 = theStream.ReadByte()) != -1)

{

tempStream.WriteByte(((byte)b1));

}

return tempStream.ToArray();

}

升级程序代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.Xml;
using System.IO;
using System.Diagnostics;

namespace AutoUpdate

{
    public partial class frmAutoUpdate : Form
    {
        public frmAutoUpdate()
        {
            InitializeComponent();
        }

        /**//// <summary>
        /// 当前版本
        /// </summary>
        private string m_strLocalVer;

        /**//// <summary>
        /// 服务器版本
        /// </summary>
        private string m_strServerVer;

        /**//// <summary>
        /// 需要更新的文件总数
        /// </summary>
        private int m_intFilesCount = 0;

        /**//// <summary>
        /// 需要更新的文件大小
        /// </summary>

        private int m_AllFileSize;
        /**//// <summary>
        /// 正在下载的文件大小
        /// </summary>

        private int m_downingFileSize;
        /**//// <summary>
        /// 已经下载的文件大小
        /// </summary>

        private int m_downedFileSize;
        /**//// <summary>
        ///数组,需要更新的文件
        /// </summary>

        private string[] m_Files = null;
        /**//// <summary>
        /// 定义文件对象
        /// </summary>

        WebReference.Service ws;

        /**//// <summary>
        /// 连接WebServeces并下载文件线程
        /// </summary>
        private Thread DownThread;
        private void frmAutoUpdata_Load(object sender, EventArgs e)
        {
            DownThread = new Thread(new ThreadStart(StartUpdate));
            DownThread.Start();
        }

        /**//// <summary>
        /// 连接服务器，开始升级
        /// </summary>
        private void StartUpdate()
        {
            ws = new WebReference.Service();
            m_AllFileSize = ws.AllFileSize();
            try
            {
                m_strLocalVer =Config.Ver; //从配置文件中读取当前版本号
                m_strServerVer = ws.ServerVer();//保存服务器版本号
                BeginInvoke(new System.EventHandler(UpdateUI), lblLink);

                //当前版本低于服务器版本,开始更新
                if (double.Parse(m_strLocalVer) < double.Parse(m_strServerVer))
                {
                    BeginInvoke(new System.EventHandler(UpdateUI), lblDownLoad);
                    m_Files = ws.NewFiles();//需要更新的文件
                    if (m_Files != null)
                    {
                        m_intFilesCount = m_Files.Length;
                        for (int i = 0; i <= m_intFilesCount - 1; i++)
                        {
                            DownFile(m_Files[i]);
                            Debug.WriteLine(m_Files[i]);
                        }

                        // Config.VER = strServerVer;//将版本号记录到配置文件中
                    }
                }
                else
                {
                    BeginInvoke(new EventHandler(OnShowMessage),
                        "你计算机上安装的已经是最新版本了,不需要升级.");
                    return;
                }
            }
            catch (Exception ex)
            {
                BeginInvoke(new EventHandler(OnShowMessage), ex.Message);
                return;
            }

            //UI线程设置label属性
            BeginInvoke(new System.EventHandler(UpdateUI), lblStartExe);

            //安装文件
            MethodInvoker miSetup = new MethodInvoker(this.StartSetup);
            this.BeginInvoke(miSetup);
        }

        /**//// <summary>
        /// 下载文件
        /// </summary>
        /// <param name="fileName">文件名</param>
        private void DownFile(string fileName)
        {
            //得到二进制文件字节数组；
            byte[] bt = ws.GetNewFile(fileName);
            m_downingFileSize = bt.Length / 1024;
            string strPath = Application.StartupPath + "\\Update\\" + fileName;
            if (File.Exists(strPath))
            {
                File.Delete(strPath);
            }
            FileStream fs = new FileStream(strPath, FileMode.CreateNew);
            fs.Write(bt, 0, bt.Length);
            fs.Close();
        }

        /**//// <summary>
        /// 开始安装下载的文件
        /// </summary>
       private void StartSetup()
        {
            // 结束当前运行的主程序
            Process[] pros = Process.GetProcesses();
            for (int i = 0; i < pros.Length; i++)
            {
                if (pros[i].ProcessName == "教师考勤系统")
                {
                    pros[i].Kill();
                }
            }

            // 开始复制文件
            for (int i = 0; i <= m_intFilesCount - 1; i++)
            {
                string sourceFileName = Application.StartupPath + "\\Update\\" + m_Files[i];
                string destFileName = Application.StartupPath + "\\" + m_Files[i];
                if (File.Exists(destFileName))
                {
                    File.Delete(destFileName);
                }
                File.Copy(sourceFileName, destFileName, false);
            }

            // 升级完成，启动主程序
            string StrExe = Application.StartupPath + "\\教师考勤系统.exe";

            if (File.Exists(StrExe))
            {
                System.Diagnostics.Process.Start(StrExe);
            }

            //关闭升级程序
            Application.Exit();
        }

        辅助方法,确保线程安全

        /**//// <summary>
        /// 关闭窗体时关闭线程
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void frmAutoUpdate_FormClosing(object sender, FormClosingEventArgs e)
        {
            try
            {
                DownThread.Abort();
            }
            catch
            {
                ;
            }
        }
    }
}

在创建Web服务时要把位置改为：文件系统(默认为HTTP)