我们做了程序,不免会有版本升级,这就需要程序有自动版本升级的功能。那么看看我是如何实现程序自动更新的。
直接上代码:
using System; using System.Collections.Generic; using System.Text; using System.Reflection; using System.IO; using System<a href="http://lib.csdn.net/base/dotnet" class=‘replace_word‘ title=".NET知识库" target=‘_blank‘ style=‘color:#df3434; font-weight:bold;‘>.NET</a>; using System.Xml; namespace Update { /// <summary> /// 更新完成触发的事件 /// </summary> public delegate void UpdateState(); /// <summary> /// 程序更新 /// </summary> public class SoftUpdate { private string download; private const string updateUrl = "http://www.csdn<a href="http://lib.csdn.net/base/dotnet" class=‘replace_word‘ title=".NET知识库" target=‘_blank‘ style=‘color:#df3434; font-weight:bold;‘>.Net</a>/update.xml";//升级配置的XML文件地址 #region 构造函数 public SoftUpdate() { } /// <summary> /// 程序更新 /// </summary> /// <param name="file">要更新的文件</param> public SoftUpdate(string file,string softName) { this.LoadFile = file; this.SoftName = softName; } #endregion #region 属性 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> /// 要检查更新的文件 /// </summary> public string LoadFile { get { return loadFile; } set { loadFile = value; } } /// <summary> /// 程序集新版本 /// </summary> public string NewVerson { get { return newVerson; } } /// <summary> /// 升级的名称 /// </summary> public string SoftName { get { return softName; } set { softName = value; } } #endregion /// <summary> /// 更新完成时触发的事件 /// </summary> public event UpdateState UpdateFinish; private void isFinish() { if(UpdateFinish != null) UpdateFinish(); } /// <summary> /// 下载更新 /// </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; wc.DownloadFile(download, filename); wc.Dispose(); isFinish(); } catch { throw new Exception("更新出现错误,网络连接失败!"); } } /// <summary> /// 检查是否需要更新 /// </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("更新出现错误,请确认网络连接无误后重试!"); } } /// <summary> /// 获取要更新的文件 /// </summary> /// <returns></returns> public override string ToString() { return this.loadFile; } } }
把代码编译为一个类库文件,通过程序引用就OK啦。传入的参数已经有注释了。
下面是更新的XML文件类容,传到空间上面就可以了,得到XML文件的地址。
<?xml version="1.0" encoding="utf-8" ?> <Update> <Soft Name="BlogWriter"> <Verson>1.0.1.2</Verson> <DownLoad>http://www.csdn.net/BlogWrite.rar</DownLoad> </Soft> </Update>
程序更新调用方法:
1、先引用上面的DLL。
2、调用方法代码 如下
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.IO; using System.Threading; using System.Net; using System.Xml; using Update; namespace UpdateTest { public partial class Form1 : Form { public Form1() { InitializeComponent(); checkUpdate(); } public void checkUpdate() { SoftUpdate app = new SoftUpdate(Application.ExecutablePath, "BlogWriter"); app.UpdateFinish += new UpdateState(app_UpdateFinish); try { if (app.IsUpdate && MessageBox.Show("检查到新版本,是否更新?", "Update", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) { Thread update = new Thread(new ThreadStart(app.Update)); update.Start(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } void app_UpdateFinish() { MessageBox.Show("更新完成,请重新启动程序!", "Update", MessageBoxButtons.OK, MessageBoxIcon.Information); } } }
好了,整个程序到此结束。
时间: 2024-10-20 17:53:45