1 <?xml version="1.0" encoding="utf-8" ?>
2  <SystemConfigInfo>
3   <SystemTitle>涛涛ideas的配置系统</SystemTitle>
4   <SystemVersion>20110705</SystemVersion>
5  </SystemConfigInfo>

 1 using System;
 2 using System.Data;
 3 using System.Configuration;
 4 using System.Linq;
 5 using System.Web;
 6 using System.Web.Security;
 7 using System.Web.UI;
 8 using System.Web.UI.HtmlControls;
 9 using System.Web.UI.WebControls;
10 using System.Web.UI.WebControls.WebParts;
11 using System.Xml.Linq;
12 using System.Xml.Serialization;
13 
14 namespace Taotao.Test.Config
15 {
16     /// <summary>
17     /// 系统配置信息
18     /// </summary>
19     [Serializable]
20     public class SystemConfigInfo
21     {
22         /// <summary>
23         /// 系统名称
24         /// </summary>
25         [XmlElement("SystemTitle")]
26         public string SystemTitle;
27 
28         /// <summary>
29         /// 系统版本
30         /// </summary>
31         [XmlElement("SystemVersion")]
32         public string SystemVersion;
33     }
34 }

 1 using System;
 2 using System.Data;
 3 using System.Configuration;
 4 using System.Linq;
 5 using System.Web;
 6 using System.Web.Security;
 7 using System.Web.UI;
 8 using System.Web.UI.HtmlControls;
 9 using System.Web.UI.WebControls;
10 using System.Web.UI.WebControls.WebParts;
11 using System.Xml.Linq;
12 using System.IO;
13 using System.Xml.Serialization;
14 
15 namespace Taotao.Test.Config
16 {
17     /// <summary>
18     /// 系统配置
19     /// </summary>
20     public class SystemConfig
21     {
22         /// <summary>
23         /// 文件路径
24         /// </summary>
25         private static string filePath;
26         /// <summary>
27         /// 配置对象
28         /// </summary>
29         private static SystemConfigInfo systemConfigInfo;
30         /// <summary>
31         /// 锁对象
32         /// </summary>
33         private static readonly object lockObj = new object();
34         /// <summary>
35         /// 文件最后修改时间
36         /// </summary>
37         private static DateTime fileLastChangeTime;
38 
39         static SystemConfig()
40         {
41             filePath = HttpContext.Current.Server.MapPath("~/Config/SystemConfig.config");
42             fileLastChangeTime = File.GetLastWriteTime(filePath);
43             systemConfigInfo = GetConfig();
44         }
45 
46         /// <summary>
47         /// 获取配置对象实例
48         /// </summary>
49         /// <returns></returns>
50         public static SystemConfigInfo GetConfig()
51         {
52             DateTime newFileLastChangeTime = File.GetLastWriteTime(filePath);
53             //配置文件被修改
54             if (newFileLastChangeTime != fileLastChangeTime)
55             {
56                 systemConfigInfo = (SystemConfigInfo)DeSerialize(typeof(SystemConfigInfo), filePath);
57             }
58             else
59             {
60                 if (systemConfigInfo == null)
61                 {
62                     lock (lockObj)
63                     {
64                         if (systemConfigInfo == null)
65                         {
66                             systemConfigInfo = (SystemConfigInfo)DeSerialize(typeof(SystemConfigInfo), filePath);
67                         }
68                     }
69                 }
70             }
71 
72             return systemConfigInfo;
73         }
74 
75         /// <summary>
76         /// 将配置文件内容发序列化成对象
77         /// </summary>
78         /// <param name="type"></param>
79         /// <param name="filePath"></param>
80         /// <returns></returns>
81         private static object DeSerialize(Type type, string filePath)
82         {
83             try
84             {
85                 using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
86                 {
87                     XmlSerializer xs = new XmlSerializer(type);
88                     return xs.Deserialize(fs);
89                 }
90             }
91             catch (Exception ex)
92             {
93                 throw ex;
94             }
95         }
96     }
97 }

1 protected void Page_Load(object sender, EventArgs e)
2         {
3             this.txtSystemTitle.Text = SystemConfig.GetConfig().SystemTitle;
4             this.txtSystemVersion.Text = SystemConfig.GetConfig().SystemVersion;
5         }