IConfigurationSectionHandler 使用~
读取webconfig中自定义的xml处理对特定的配置节的访问。webconfig
1 <configSections>
2 <section name="NopConfig" type="BotanicSystem.Core.Configuration.NopConfig, BotanicSystem.Core" requirePermission="false" />
3 </configSections>
1 <NopConfig>
2 <!-- Web farm support
3 Enable "MultipleInstancesEnabled" if you run multiple instances.
4 Enable "RunOnAzureWebsites" if you run on Windows Azure Web sites (not cloud services). -->
5 <WebFarms MultipleInstancesEnabled="False" RunOnAzureWebsites="False" />
6 <!-- Windows Azure BLOB storage. Specify your connection string, container name, end point for BLOB storage here -->
7 <AzureBlobStorage ConnectionString="" ContainerName="" EndPoint="" />
8 <!-- Redis support (used by web farms, Azure, etc). Find more about it at https://azure.microsoft.com/en-us/documentation/articles/cache-dotnet-how-to-use-azure-redis-cache/ -->
9 <RedisCaching Enabled="false" ConnectionString="localhost" />
10 <!-- You can get the latest version of user agent strings at http://browscap.org/ -->
11 <UserAgentStrings databasePath="~/App_Data/browscap.xml" />
12 <!-- Set the setting below to "False" if you did not upgrade from one of the previous versions. It can slightly improve performance -->
13 <SupportPreviousNopcommerceVersions Enabled="True" />
14 <!-- Do not edit this element. For advanced users only -->
15 <Installation DisableSampleDataDuringInstallation="False" UseFastInstallationService="False" PluginsIgnoredDuringInstallation="" />
16 </NopConfig>
解析读取
1 /// <summary>
2 /// Represents a NopConfig
3 /// </summary>
4 public partial class NopConfig : IConfigurationSectionHandler
5 {
6 /// <summary>
7 /// Creates a configuration section handler.
8 /// </summary>
9 /// <param name="parent">Parent object.</param>
10 /// <param name="configContext">Configuration context object.</param>
11 /// <param name="section">Section XML node.</param>
12 /// <returns>The created section handler object.</returns>
13 public object Create(object parent, object configContext, XmlNode section)
14 {
15 var config = new NopConfig();
16
17 var startupNode = section.SelectSingleNode("Startup");
18 config.IgnoreStartupTasks = GetBool(startupNode, "IgnoreStartupTasks");
19
20 var redisCachingNode = section.SelectSingleNode("RedisCaching");
21 config.RedisCachingEnabled = GetBool(redisCachingNode, "Enabled");
22 config.RedisCachingConnectionString = GetString(redisCachingNode, "ConnectionString");
23
24 var userAgentStringsNode = section.SelectSingleNode("UserAgentStrings");
25 config.UserAgentStringsPath = GetString(userAgentStringsNode, "databasePath");
26
27 var supportPreviousNopcommerceVersionsNode = section.SelectSingleNode("SupportPreviousNopcommerceVersions");
28 config.SupportPreviousNopcommerceVersions = GetBool(supportPreviousNopcommerceVersionsNode, "Enabled");
29
30 var webFarmsNode = section.SelectSingleNode("WebFarms");
31 config.MultipleInstancesEnabled = GetBool(webFarmsNode, "MultipleInstancesEnabled");
32 config.RunOnAzureWebsites = GetBool(webFarmsNode, "RunOnAzureWebsites");
33
34 var azureBlobStorageNode = section.SelectSingleNode("AzureBlobStorage");
35 config.AzureBlobStorageConnectionString = GetString(azureBlobStorageNode, "ConnectionString");
36 config.AzureBlobStorageContainerName = GetString(azureBlobStorageNode, "ContainerName");
37 config.AzureBlobStorageEndPoint = GetString(azureBlobStorageNode, "EndPoint");
38
39 var installationNode = section.SelectSingleNode("Installation");
40 config.DisableSampleDataDuringInstallation = GetBool(installationNode, "DisableSampleDataDuringInstallation");
41 config.UseFastInstallationService = GetBool(installationNode, "UseFastInstallationService");
42 config.PluginsIgnoredDuringInstallation = GetString(installationNode, "PluginsIgnoredDuringInstallation");
43
44 return config;
45 }
46
47 private string GetString(XmlNode node, string attrName)
48 {
49 return SetByXElement<string>(node, attrName, Convert.ToString);
50 }
51
52 private bool GetBool(XmlNode node, string attrName)
53 {
54 return SetByXElement<bool>(node, attrName, Convert.ToBoolean);
55 }
56
57 private T SetByXElement<T>(XmlNode node, string attrName, Func<string, T> converter)
58 {
59 if (node == null || node.Attributes == null) return default(T);
60 var attr = node.Attributes;
61 if (attr == null) return default(T);
62 var attrVal = attr.Value;
63 return converter(attrVal);
64 }
65
66 /// <summary>
67 /// Indicates whether we should ignore startup tasks
68 /// </summary>
69 public bool IgnoreStartupTasks { get; private set; }
70
71 /// <summary>
72 /// Path to database with user agent strings
73 /// </summary>
74 public string UserAgentStringsPath { get; private set; }
75
76
77
78 /// <summary>
79 /// Indicates whether we should use Redis server for caching (instead of default in-memory caching)
80 /// </summary>
81 public bool RedisCachingEnabled { get; private set; }
82 /// <summary>
83 /// Redis connection string. Used when Redis caching is enabled
84 /// </summary>
85 public string RedisCachingConnectionString { get; private set; }
86
87
88
89 /// <summary>
90 /// Indicates whether we should support previous nopCommerce versions (it can slightly improve performance)
91 /// </summary>
92 public bool SupportPreviousNopcommerceVersions { get; private set; }
93
94
95
96 /// <summary>
97 /// A value indicating whether the site is run on multiple instances (e.g. web farm, Windows Azure with multiple instances, etc).
98 /// Do not enable it if you run on Azure but use one instance only
99 /// </summary>
100 public bool MultipleInstancesEnabled { get; private set; }
101
102 /// <summary>
103 /// A value indicating whether the site is run on Windows Azure Websites
104 /// </summary>
105 public bool RunOnAzureWebsites { get; private set; }
106
107 /// <summary>
108 /// Connection string for Azure BLOB storage
109 /// </summary>
110 public string AzureBlobStorageConnectionString { get; private set; }
111 /// <summary>
112 /// Container name for Azure BLOB storage
113 /// </summary>
114 public string AzureBlobStorageContainerName { get; private set; }
115 /// <summary>
116 /// End point for Azure BLOB storage
117 /// </summary>
118 public string AzureBlobStorageEndPoint { get; private set; }
119
120
121 /// <summary>
122 /// A value indicating whether a store owner can install sample data during installation
123 /// </summary>
124 public bool DisableSampleDataDuringInstallation { get; private set; }
125 /// <summary>
126 /// By default this setting should always be set to "False" (only for advanced users)
127 /// </summary>
128 public bool UseFastInstallationService { get; private set; }
129 /// <summary>
130 /// A list of plugins ignored during nopCommerce installation
131 /// </summary>
132 public string PluginsIgnoredDuringInstallation { get; private set; }
133 }
View Code 使用
1 var config = ConfigurationManager.GetSection("NopConfig") as NopConfig;
IConfigurationSectionHandler是 在System.Configuration 下
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