因为公司要做一个服务器与客户端在线升级的软件，需要用到获取服务器上文件路径的信息，并生成对应的XML文件做了一个小软件进行测试，能用到的朋友可以借鉴，主要代码如下：

1. private XmlDocument xmlDoc; 
2.  
3.         private void btnCreateXml_Click(object sender, EventArgs e) 
4.         { 
5.             //自定义文件路径 
6.             string strPath = "F:\\work2\\bkjj\\"; 
7.  
8.             xmlDoc = new XmlDocument(); 
9.             xmlDoc.LoadXml("<Directory></Directory>"); 
10.  
11.             try 
12.             { 
13.                 DirectoryInfo d1 = new DirectoryInfo(strPath); 
14.                 FileSystemInfo[] fsi = d1.GetFileSystemInfos(); 
15.       
16.                 foreach (FileSystemInfo fs in fsi) 
17.                 { 
18.                     XmlNode xn = xmlDoc.SelectSingleNode("Directory"); 
19.                     if (fs is DirectoryInfo) 
20.                     { 
21.                          
22.                         XmlElement xe = xmlDoc.CreateElement("Directory"); 
23.                         XmlAttribute xa1 = xmlDoc.CreateAttribute("Path"); 
24.                         XmlAttribute xa2 = xmlDoc.CreateAttribute("Size"); 
25.                         xa1.Value = fs.FullName; 
26.                         xa2.Value = GetDirectSize(fs.FullName).ToString(); 
27.                         xe.Attributes.Append(xa1); 
28.                         xe.Attributes.Append(xa2); 
29.                         xn.AppendChild(xe); 
30.                         //循环遍历，传递当前的节点是关键，因为这个原因搞了大半天 
31.                         LoopDirectory(fs.FullName, xe); 
32.                     } 
33.                     else 
34.                     { 
35.                         FileInfo f1 = new FileInfo(fs.FullName); 
36.  
37.                         XmlElement xe = xmlDoc.CreateElement("File"); 
38.                         XmlAttribute xa1 = xmlDoc.CreateAttribute("Path"); 
39.                         XmlAttribute xa2 = xmlDoc.CreateAttribute("Size"); 
40.                         xa1.Value = fs.FullName; 
41.                         xa2.Value = f1.Length.ToString(); 
42.                         xe.Attributes.Append(xa1); 
43.                         xe.Attributes.Append(xa2); 
44.  
45.                         xn.AppendChild(xe); 
46.  
47.                     } 
48.                 } 
49.             } 
50.             catch (Exception ex) 
51.             { 
52.                 MessageBox.Show(ex.Message); 
53.             } 
54.             finally 
55.             { 
56.                 xmlDoc.Save("fileInfo.xml"); 
57.             } 
58.         } 
59.  
60.         //遍历所给路径的文件夹，并在当前的XmlElement处创建节点 
61.         private void LoopDirectory(string strPath,XmlElement ele) 
62.         { 
63.             DirectoryInfo d1 = new DirectoryInfo(strPath); 
64.             FileSystemInfo[] fsi = d1.GetFileSystemInfos(); 
65.             foreach (FileSystemInfo fs in fsi) 
66.             { 
67.                 if (fs is DirectoryInfo) 
68.                 { 
69.                     XmlElement xe = xmlDoc.CreateElement("Directory"); 
70.                     XmlAttribute xa1 = xmlDoc.CreateAttribute("Path"); 
71.                     XmlAttribute xa2 = xmlDoc.CreateAttribute("Size"); 
72.                     xa1.Value = fs.FullName; 
73.                     xa2.Value = GetDirectSize(fs.FullName).ToString(); 
74.                     xe.Attributes.Append(xa1); 
75.                     xe.Attributes.Append(xa2); 
76.  
77.                     ele.AppendChild(xe); 
78.                     //循环遍历 
79.                     LoopDirectory(fs.FullName,xe); 
80.                 } 
81.                 else 
82.                 { 
83.                     FileInfo f1 = new FileInfo(fs.FullName); 
84.                     XmlElement xe = xmlDoc.CreateElement("File"); 
85.                     XmlAttribute xa1 = xmlDoc.CreateAttribute("Path"); 
86.                     XmlAttribute xa2 = xmlDoc.CreateAttribute("Size"); 
87.                     xa1.Value = fs.FullName; 
88.                     xa2.Value = f1.Length.ToString(); 
89.                     xe.Attributes.Append(xa1); 
90.                     xe.Attributes.Append(xa2); 
91.  
92.                     ele.AppendChild(xe); 
93.                 } 
94.             } 
95.         } 
96.  
97.         //获取一个文件夹的大小，这里借鉴别人的代码 
98.         private long GetDirectSize(string filePath) 
99.         { 
100.             long temp = 0; 
101.             if (File.Exists(filePath) == false)//判断当前路径所指向的是否为文件 
102.             { 
103.                 string[] str1 = Directory.GetFileSystemEntries(filePath); 
104.                 foreach (string s1 in str1) 
105.                 { 
106.                     temp += GetDirectSize(s1); 
107.                 } 
108.             } 
109.             else 
110.             { 
111.                 //定义一个FileInfo对象,使之与filePath所指向的文件向关联,以获取其大小 
112.                 FileInfo fileInfo = new FileInfo(filePath); 
113.                 return fileInfo.Length; 
114.             } 
115.             return temp; 
116.         }