c# 软件自动在线更新代码
程序部份代码参考自：http://www.cnblogs.com/hjs1573/archive/2007/09/11/889826.html
服务器空间为.Net 2.0空间
注意：网盘失效，源码无法下载，不过所有的源代码都已经贴出来了，可以自己新建一个工程，然后把代码复制进去，自行编译
服务器空间文件列表：
/UpdateSize.ashx
/AutoUpdater //此文件夹放更新文件
/AutoUpdater/AutoUpdater.xml
UpdateSize.ashx：
1
<%@ WebHandler Language="C#" Class="UpdateSize" %>
2
3using System;
4using System.Web;
5using System.IO;
6
7
public class UpdateSize : IHttpHandler {
8
9
public void ProcessRequest (HttpContext context) {
10 string dirPath = context.Server.MapPath("/AutoUpdater/");
11 context.Response.ContentType = "text/xml";
12 context.Response.Expires = -1;
13 context.Response.Write("<?xml version=\"1.0\" encoding=\"utf-8\" ?>");
14 context.Response.Write("<UpdateSize Size=\"" + GetUpdateSize(dirPath) + "\" />");
15 context.Response.End();
16
}
17
18 /// <summary>
19 /// 获取所有下载文件大小
20 /// </summary>
21 /// <returns>返回值</returns>
22 private static long GetUpdateSize(string dirPath)
23 {
24 //判断文件夹是否存在，不存在则退出
25 if (!Directory.Exists(dirPath))
26 return 0;
27 long len;
28 len = 0;
29 DirectoryInfo di = new DirectoryInfo(dirPath);
30 //获取所有文件大小
31 foreach (FileInfo fi in di.GetFiles())
32 {
33 //剔除升级数据文件
34 if (fi.Name != "AutoUpdater.xml")
35 len += fi.Length;
36 }
37 return len;
38 }
39
40 public bool IsReusable {
41 get {
42 return false;
43 }
44 }
45
}
<%@ WebHandler Language="C#" Class="UpdateSize" %> 2
3
using System; 4
using System.Web; 5
using System.IO; 6
7
public class UpdateSize : IHttpHandler { 
8
9
public void ProcessRequest (HttpContext context) { 
10
string dirPath = context.Server.MapPath("/AutoUpdater/"); 11
context.Response.ContentType = "text/xml"; 12
context.Response.Expires = -1; 13
context.Response.Write("<?xml version=\"1.0\" encoding=\"utf-8\" ?>"); 14
context.Response.Write("<UpdateSize Size=\"" + GetUpdateSize(dirPath) + "\" />"); 15
context.Response.End(); 16
} 17
18
/// <summary> 19
/// 获取所有下载文件大小 20
/// </summary> 21
/// <returns>返回值</returns> 22
private static long GetUpdateSize(string dirPath) 23
{ 24
//判断文件夹是否存在，不存在则退出 25
if (!Directory.Exists(dirPath)) 26
return 0; 27
long len; 28
len = 0; 29
DirectoryInfo di = new DirectoryInfo(dirPath); 30
//获取所有文件大小 31
foreach (FileInfo fi in di.GetFiles()) 32
{ 33
//剔除升级数据文件 34
if (fi.Name != "AutoUpdater.xml") 35
len += fi.Length; 36
} 37
return len; 38
} 39
40
public bool IsReusable { 41
get { 42
return false; 43
} 44
} 45
}AutoUpdater.xml：
<?xml version="1.0" encoding="utf-8" ?> <AutoUpdater> <UpdateInfo> <!--升级文件的更新日期--> <UpdateTime Date = "2008-08-06"/> </UpdateInfo> <!--升级文件列表--> <UpdateFileList> <UpdateFile>Maxthon207.exe</UpdateFile> </UpdateFileList> <UpdateFileList> <UpdateFile>Maxthon207.exe</UpdateFile> </UpdateFileList> </AutoUpdater> 客户端
conf.config：
<?xml version="1.0" encoding="utf-8" ?> <configuration> <appSettings> <add key="Url" value="http://localhost/" /> <add key="UpDate" value="2008-08-06" /> </appSettings> </configuration>AutoUpdater.cs：
1using System;
2using System.ComponentModel;
3using System.Data;
4using System.Globalization;
5using System.IO;
6using System.Net;
7using System.Text;
8using System.Windows.Forms;
9using System.Xml;
10
11namespace Yesuo
12{
13 public partial class AutoUpdater : Form
14 {
15 private WebClient downWebClient = new WebClient();
16 private static string dirPath;
17 private static long size;//所有文件大小
18 private static int count;//文件总数
19 private static string[] fileNames;
20 private static int num;//已更新文件数
21 private static long upsize;//已更新文件大小
22 private static string fileName;//当前文件名
23 private static long filesize;//当前文件大小
24
25 public AutoUpdater()
26 {
27 InitializeComponent();
28 }
29
30 private void ComCirUpdate_Load(object sender, EventArgs e)
31 {
32 dirPath = GetConfigValue("conf.config", "Url");
33 string thePreUpdateDate = GetTheLastUpdateTime(dirPath);
34 string localUpDate = GetConfigValue("conf.config", "UpDate");
35 if (!String.IsNullOrEmpty(thePreUpdateDate) && !String.IsNullOrEmpty(localUpDate))
36 {
37 if (DateTime.Compare(
38 Convert.ToDateTime(thePreUpdateDate, CultureInfo.InvariantCulture),
39 Convert.ToDateTime(localUpDate, CultureInfo.InvariantCulture)) > 0)
40 {
41 UpdaterStart();
42 }
43 else
44 {
45 UpdaterClose();
46 }
47 }
48 else
49 {
50 UpdaterClose();
51 }
52 //UpdaterStart();
53 }
54
55 /// <summary>
56 /// 开始更新
57 /// </summary>
58 private void UpdaterStart()
59 {
60 float tempf;
61 //委托下载数据时事件
62 this.downWebClient.DownloadProgressChanged += delegate(object wcsender, DownloadProgressChangedEventArgs ex)
63 {
64 this.label2.Text = String.Format(
65 CultureInfo.InvariantCulture,
66 "正在下载:{0} [ {1}/{2} ]",
67 fileName,
68 ConvertSize(ex.BytesReceived),
69 ConvertSize(ex.TotalBytesToReceive));
70
71 filesize = ex.TotalBytesToReceive;
72 tempf = ((float)(upsize + ex.BytesReceived) / size);
73 this.progressBar1.Value = Convert.ToInt32(tempf * 100);
74 this.progressBar2.Value = ex.ProgressPercentage;
75 };
76 //委托下载完成时事件
77 this.downWebClient.DownloadFileCompleted += delegate(object wcsender, AsyncCompletedEventArgs ex)
78 {
79 if (ex.Error != null)
80 {
81 MeBox(ex.Error.Message);
82 }
83 else
84 {
85 if (File.Exists(Application.StartupPath + "\\" + fileName))
86 {
87 File.Delete(Application.StartupPath + "\\" + fileName);
88 }
89 File.Move(Application.StartupPath + "\\AutoUpdater\\" + fileName, Application.StartupPath + "\\" + fileName);
90 upsize += filesize;
91 if (fileNames.Length > num)
92 {
93 DownloadFile(num);
94 }
95 else
96 {
97 SetConfigValue("conf.config", "UpDate", GetTheLastUpdateTime(dirPath));
98 UpdaterClose();
99 }
100 }
101 };
102
103 size = GetUpdateSize(dirPath + "UpdateSize.ashx");
104 if (size == 0)
105 UpdaterClose();
106 num = 0;
107 upsize = 0;
108 UpdateList();
109 if (fileNames != null)
110 DownloadFile(0);
111 }
112
113 /// <summary>
114 /// 获取更新文件大小统计
115 /// </summary>
116 /// <param name="filePath">更新文件数据XML</param>
117 /// <returns>返回值</returns>
118 private static long GetUpdateSize(string filePath)
119 {
120 long len;
121 len = 0;
122 try
123 {
124 WebClient wc = new WebClient();
125 Stream sm = wc.OpenRead(filePath);
126 XmlTextReader xr = new XmlTextReader(sm);
127 while (xr.Read())
128 {
129 if (xr.Name == "UpdateSize")
130 {
131 len = Convert.ToInt64(xr.GetAttribute("Size"), CultureInfo.InvariantCulture);
132 break;
133 }
134 }
135 xr.Close();
136 sm.Close();
137 }
138 catch (WebException ex)
139 {
140 MeBox(ex.Message);
141 }
142 return len;
143 }
144
145 /// <summary>
146 /// 获取文件列表并下载
147 /// </summary>
148 private static void UpdateList()
149 {
150 string xmlPath = dirPath + "AutoUpdater/AutoUpdater.xml";
151 WebClient wc = new WebClient();
152 DataSet ds = new DataSet();
153 ds.Locale = CultureInfo.InvariantCulture;
154
155 try
156 {
157 Stream sm = wc.OpenRead(xmlPath);
158 ds.ReadXml(sm);
159 DataTable dt = ds.Tables["UpdateFileList"];
160 StringBuilder sb = new StringBuilder();
161 count = dt.Rows.Count;
162 for (int i = 0; i < dt.Rows.Count; i++)
163 {
164 if (i == 0)
165 {
166 sb.Append(dt.Rows[i]["UpdateFile"].ToString());
167 }
168 else
169 {
170 sb.Append("," + dt.Rows[i]["UpdateFile"].ToString());
171 }
172 }
173 fileNames = sb.ToString().Split(',');
174 sm.Close();
175 }
176 catch (WebException ex)
177 {
178 MeBox(ex.Message);
179 }
180 }
181
182 /// <summary>
183 /// 下载文件
184 /// </summary>
185 /// <param name="arry">下载序号</param>
186 private void DownloadFile(int arry)
187 {
188 try
189 {
190 num++;
191 fileName = fileNames[arry];
192 this.label1.Text = String.Format(
193 CultureInfo.InvariantCulture,
194 "更新进度 {0}/{1} [ {2} ]",
195 num,
196 count,
197 ConvertSize(size));
198
199 this.progressBar2.Value = 0;
200 this.downWebClient.DownloadFileAsync(
201 new Uri(dirPath + "AutoUpdater/" + fileName),
202 Application.StartupPath + "\\AutoUpdater\\" + fileName);
203 }
204 catch (WebException ex)
205 {
206 MeBox(ex.Message);
207 }
208 }
209
210 /// <summary>
211 /// 转换字节大小
212 /// </summary>
213 /// <param name="byteSize">输入字节数</param>
214 /// <returns>返回值</returns>
215 private static string ConvertSize(long byteSize)
216 {
217 string str = "";
218 float tempf = (float)byteSize;
219 if (tempf / 1024 > 1)
220 {
221 if ((tempf / 1024) / 1024 > 1)
222 {
223 str = ((tempf / 1024) / 1024).ToString("##0.00", CultureInfo.InvariantCulture) + "MB";
224 }
225 else
226 {
227 str = (tempf / 1024).ToString("##0.00", CultureInfo.InvariantCulture) + "KB";
228 }
229 }
230 else
231 {
232 str = tempf.ToString(CultureInfo.InvariantCulture) + "B";
233 }
234 return str;
235 }
236
237 /// <summary>
238 /// 弹出提示框
239 /// </summary>
240 /// <param name="txt">输入提示信息</param>
241 private static void MeBox(string txt)
242 {
243 MessageBox.Show(
244 txt,
245 "提示信息",
246 MessageBoxButtons.OK,
247 MessageBoxIcon.Asterisk,
248 MessageBoxDefaultButton.Button1,
249 MessageBoxOptions.DefaultDesktopOnly);
250 }
251
252 /// <summary>
253 /// 关闭程序
254 /// </summary>
255 private static void UpdaterClose()
256 {
257 try
258 {
259 System.Diagnostics.Process.Start(Application.StartupPath + "\\ComCir.exe");
260 }
261 catch (Win32Exception ex)
262 {
263 MeBox(ex.Message);
264 }
265 Application.Exit();
266 }
267
268 /// <summary>
269 /// 读取.exe.config的值
270 /// </summary>
271 /// <param name="path">.exe.config文件的路径</param>
272 /// <param name="appKey">"key"的值</param>
273 /// <returns>返回"value"的值</returns>
274 internal static string GetConfigValue(string path, string appKey)
275 {
276 XmlDocument xDoc = new XmlDocument();
277 XmlNode xNode;
278 XmlElement xElem = null;
279 try
280 {
281 xDoc.Load(path);
282
283 xNode = xDoc.SelectSingleNode("//appSettings");
284
285 xElem = (XmlElement)xNode.SelectSingleNode("//add[@key=\"" + appKey + "\"]");
286
287 }
288 catch (XmlException ex)
289 {
290 MeBox(ex.Message);
291 }
292 if (xElem != null)
293 return xElem.GetAttribute("value");
294 else
295 return "";
296 }
297
298 /// <summary>
299 /// 设置.exe.config的值
300 /// </summary>
301 /// <param name="path">.exe.config文件的路径</param>
302 /// <param name="appKey">"key"的值</param>
303 /// <param name="appValue">"value"的值</param>
304 internal static void SetConfigValue(string path, string appKey, string appValue)
305 {
306 XmlDocument xDoc = new XmlDocument();
307 try
308 {
309 xDoc.Load(path);
310
311 XmlNode xNode;
312 XmlElement xElem1;
313 XmlElement xElem2;
314
315 xNode = xDoc.SelectSingleNode("//appSettings");
316
317 xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key=\"" + appKey + "\"]");
318 if (xElem1 != null) xElem1.SetAttribute("value", appValue);
319 else
320 {
321 xElem2 = xDoc.CreateElement("add");
322 xElem2.SetAttribute("key", appKey);
323 xElem2.SetAttribute("value", appValue);
324 xNode.AppendChild(xElem2);
325 }
326 xDoc.Save(Application.StartupPath + "\\" + path);
327 }
328 catch (XmlException ex)
329 {
330 MeBox(ex.Message);
331 }
332 }
333
334 /// <summary>
335 /// 判断软件的更新日期
336 /// </summary>
337 /// <param name="Dir">服务器地址</param>
338 /// <returns>返回日期</returns>
339 private static string GetTheLastUpdateTime(string Dir)
340 {
341 string LastUpdateTime = "";
342 string AutoUpdaterFileName = Dir + "AutoUpdater/AutoUpdater.xml";
343 try
344 {
345 WebClient wc = new WebClient();
346 Stream sm = wc.OpenRead(AutoUpdaterFileName);
347 XmlTextReader xml = new XmlTextReader(sm);
348 while (xml.Read())
349 {
350 if (xml.Name == "UpdateTime")
351 {
352 LastUpdateTime = xml.GetAttribute("Date");
353 break;
354 }
355 }
356 xml.Close();
357 sm.Close();
358 }
359 catch (WebException ex)
360 {
361 MeBox(ex.Message);
362 }
363 return LastUpdateTime;
364 }
365 }
366}
367
using System; 2
using System.ComponentModel; 3
using System.Data; 4
using System.Globalization; 5
using System.IO; 6
using System.Net; 7
using System.Text; 8
using System.Windows.Forms; 9
using System.Xml; 10
11
namespace Yesuo 12
{ 13
public partial class AutoUpdater : Form 14
{ 15
private WebClient downWebClient = new WebClient(); 16
private static string dirPath; 17
private static long size;//所有文件大小 18
private static int count;//文件总数 19
private static string[] fileNames; 20
private static int num;//已更新文件数 21
private static long upsize;//已更新文件大小 22
private static string fileName;//当前文件名 23
private static long filesize;//当前文件大小 24
25
public AutoUpdater() 26
{ 27
InitializeComponent(); 28
} 29
30
private void ComCirUpdate_Load(object sender, EventArgs e) 31
{ 32
dirPath = GetConfigValue("conf.config", "Url"); 33
string thePreUpdateDate = GetTheLastUpdateTime(dirPath); 34
string localUpDate = GetConfigValue("conf.config", "UpDate"); 35
if (!String.IsNullOrEmpty(thePreUpdateDate) && !String.IsNullOrEmpty(localUpDate)) 36
{ 37
if (DateTime.Compare( 38
Convert.ToDateTime(thePreUpdateDate, CultureInfo.InvariantCulture), 39
Convert.ToDateTime(localUpDate, CultureInfo.InvariantCulture)) > 0) 40
{ 41
UpdaterStart(); 42
} 43
else 44
{ 45
UpdaterClose(); 46
} 47
} 48
else 49
{ 50
UpdaterClose(); 51
} 52
//UpdaterStart(); 53
} 54
55
/// <summary> 56
/// 开始更新 57
/// </summary> 58
private void UpdaterStart() 59
{ 60
float tempf; 61
//委托下载数据时事件 62
this.downWebClient.DownloadProgressChanged += delegate(object wcsender, DownloadProgressChangedEventArgs ex) 63
{ 64
this.label2.Text = String.Format( 65
CultureInfo.InvariantCulture, 66
"正在下载:{0} [ {1}/{2} ]", 67
fileName, 68
ConvertSize(ex.BytesReceived), 69
ConvertSize(ex.TotalBytesToReceive)); 70
71
filesize = ex.TotalBytesToReceive; 72
tempf = ((float)(upsize + ex.BytesReceived) / size); 73
this.progressBar1.Value = Convert.ToInt32(tempf * 100); 74
this.progressBar2.Value = ex.ProgressPercentage; 75
}; 76
//委托下载完成时事件 77
this.downWebClient.DownloadFileCompleted += delegate(object wcsender, AsyncCompletedEventArgs ex) 78
{ 79
if (ex.Error != null) 80
{ 81
MeBox(ex.Error.Message); 82
} 83
else 84
{ 85
if (File.Exists(Application.StartupPath + "\\" + fileName)) 86
{ 87
File.Delete(Application.StartupPath + "\\" + fileName); 88
} 89
File.Move(Application.StartupPath + "\\AutoUpdater\\" + fileName, Application.StartupPath + "\\" + fileName); 90
upsize += filesize; 91
if (fileNames.Length > num) 92
{ 93
DownloadFile(num); 94
} 95
else 96
{ 97
SetConfigValue("conf.config", "UpDate", GetTheLastUpdateTime(dirPath)); 98
UpdaterClose(); 99
} 100
} 101
}; 102
103
size = GetUpdateSize(dirPath + "UpdateSize.ashx"); 104
if (size == 0) 105
UpdaterClose(); 106
num = 0; 107
upsize = 0; 108
UpdateList(); 109
if (fileNames != null) 110
DownloadFile(0); 111
} 112
113
/// <summary> 114
/// 获取更新文件大小统计 115
/// </summary> 116
/// <param name="filePath">更新文件数据XML</param> 117
/// <returns>返回值</returns> 118
private static long GetUpdateSize(string filePath) 119
{ 120
long len; 121
len = 0; 122
try 123
{ 124
WebClient wc = new WebClient(); 125
Stream sm = wc.OpenRead(filePath); 126
XmlTextReader xr = new XmlTextReader(sm); 127
while (xr.Read()) 128
{ 129
if (xr.Name == "UpdateSize") 130
{ 131
len = Convert.ToInt64(xr.GetAttribute("Size"), CultureInfo.InvariantCulture); 132
break; 133
} 134
} 135
xr.Close(); 136
sm.Close(); 137
} 138
catch (WebException ex) 139
{ 140
MeBox(ex.Message); 141
} 142
return len; 143
} 144
145
/// <summary> 146
/// 获取文件列表并下载 147
/// </summary> 148
private static void UpdateList() 149
{ 150
string xmlPath = dirPath + "AutoUpdater/AutoUpdater.xml"; 151
WebClient wc = new WebClient(); 152
DataSet ds = new DataSet(); 153
ds.Locale = CultureInfo.InvariantCulture; 154
155
try 156
{ 157
Stream sm = wc.OpenRead(xmlPath); 158
ds.ReadXml(sm); 159
DataTable dt = ds.Tables["UpdateFileList"]; 160
StringBuilder sb = new StringBuilder(); 161
count = dt.Rows.Count; 162
for (int i = 0; i < dt.Rows.Count; i++) 163
{ 164
if (i == 0) 165
{ 166
sb.Append(dt.Rows[i]["UpdateFile"].ToString()); 167
} 168
else 169
{ 170
sb.Append("," + dt.Rows[i]["UpdateFile"].ToString()); 171
} 172
} 173
fileNames = sb.ToString().Split(','); 174
sm.Close(); 175
} 176
catch (WebException ex) 177
{ 178
MeBox(ex.Message); 179
} 180
} 181
182
/// <summary> 183
/// 下载文件 184
/// </summary> 185
/// <param name="arry">下载序号</param> 186
private void DownloadFile(int arry) 187
{ 188
try 189
{ 190
num++; 191
fileName = fileNames[arry]; 192
this.label1.Text = String.Format( 193
CultureInfo.InvariantCulture, 194
"更新进度 {0}/{1} [ {2} ]", 195
num, 196
count, 197
ConvertSize(size)); 198
199
this.progressBar2.Value = 0; 200
this.downWebClient.DownloadFileAsync( 201
new Uri(dirPath + "AutoUpdater/" + fileName), 202
Application.StartupPath + "\\AutoUpdater\\" + fileName); 203
} 204
catch (WebException ex) 205
{ 206
MeBox(ex.Message); 207
} 208
} 209
210
/// <summary> 211
/// 转换字节大小 212
/// </summary> 213
/// <param name="byteSize">输入字节数</param> 214
/// <returns>返回值</returns> 215
private static string ConvertSize(long byteSize) 216
{ 217
string str = ""; 218
float tempf = (float)byteSize; 219
if (tempf / 1024 > 1) 220
{ 221
if ((tempf / 1024) / 1024 > 1) 222
{ 223
str = ((tempf / 1024) / 1024).ToString("##0.00", CultureInfo.InvariantCulture) + "MB"; 224
} 225
else 226
{ 227
str = (tempf / 1024).ToString("##0.00", CultureInfo.InvariantCulture) + "KB"; 228
} 229
} 230
else 231
{ 232
str = tempf.ToString(CultureInfo.InvariantCulture) + "B"; 233
} 234
return str; 235
} 236
237
/// <summary> 238
/// 弹出提示框 239
/// </summary> 240
/// <param name="txt">输入提示信息</param> 241
private static void MeBox(string txt) 242
{ 243
MessageBox.Show( 244
txt, 245
"提示信息", 246
MessageBoxButtons.OK, 247
MessageBoxIcon.Asterisk, 248
MessageBoxDefaultButton.Button1, 249
MessageBoxOptions.DefaultDesktopOnly); 250
} 251
252
/// <summary> 253
/// 关闭程序 254
/// </summary> 255
private static void UpdaterClose() 256
{ 257
try 258
{ 259
System.Diagnostics.Process.Start(Application.StartupPath + "\\ComCir.exe"); 260
} 261
catch (Win32Exception ex) 262
{ 263
MeBox(ex.Message); 264
} 265
Application.Exit(); 266
} 267
268
/// <summary> 269
/// 读取.exe.config的值 270
/// </summary> 271
/// <param name="path">.exe.config文件的路径</param> 272
/// <param name="appKey">"key"的值</param> 273
/// <returns>返回"value"的值</returns> 274
internal static string GetConfigValue(string path, string appKey) 275
{ 276
XmlDocument xDoc = new XmlDocument(); 277
XmlNode xNode; 278
XmlElement xElem = null; 279
try 280
{ 281
xDoc.Load(path); 282
283
xNode = xDoc.SelectSingleNode("//appSettings"); 284
285
xElem = (XmlElement)xNode.SelectSingleNode("//add[@key=\"" + appKey + "\"]"); 286
287
} 288
catch (XmlException ex) 289
{ 290
MeBox(ex.Message); 291
} 292
if (xElem != null) 293
return xElem.GetAttribute("value"); 294
else 295
return ""; 296
} 297
298
/// <summary> 299
/// 设置.exe.config的值 300
/// </summary> 301
/// <param name="path">.exe.config文件的路径</param> 302
/// <param name="appKey">"key"的值</param> 303
/// <param name="appValue">"value"的值</param> 304
internal static void SetConfigValue(string path, string appKey, string appValue) 305
{ 306
XmlDocument xDoc = new XmlDocument(); 307
try 308
{ 309
xDoc.Load(path); 310
311
XmlNode xNode; 312
XmlElement xElem1; 313
XmlElement xElem2; 314
315
xNode = xDoc.SelectSingleNode("//appSettings"); 316
317
xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key=\"" + appKey + "\"]"); 318
if (xElem1 != null) xElem1.SetAttribute("value", appValue); 319
else 320
{ 321
xElem2 = xDoc.CreateElement("add"); 322
xElem2.SetAttribute("key", appKey); 323
xElem2.SetAttribute("value", appValue); 324
xNode.AppendChild(xElem2); 325
} 326
xDoc.Save(Application.StartupPath + "\\" + path); 327
} 328
catch (XmlException ex) 329
{ 330
MeBox(ex.Message); 331
} 332
} 333
334
/// <summary> 335
/// 判断软件的更新日期 336
/// </summary> 337
/// <param name="Dir">服务器地址</param> 338
/// <returns>返回日期</returns> 339
private static string GetTheLastUpdateTime(string Dir) 340
{ 341
string LastUpdateTime = ""; 342
string AutoUpdaterFileName = Dir + "AutoUpdater/AutoUpdater.xml"; 343
try 344
{ 345
WebClient wc = new WebClient(); 346
Stream sm = wc.OpenRead(AutoUpdaterFileName); 347
XmlTextReader xml = new XmlTextReader(sm); 348
while (xml.Read()) 349
{ 350
if (xml.Name == "UpdateTime") 351
{ 352
LastUpdateTime = xml.GetAttribute("Date"); 353
break; 354
} 355
} 356
xml.Close(); 357
sm.Close(); 358
} 359
catch (WebException ex) 360
{ 361
MeBox(ex.Message); 362
} 363
return LastUpdateTime; 364
} 365
} 366
}367
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