{"id":813,"date":"2025-04-25T23:59:16","date_gmt":"2025-04-25T15:59:16","guid":{"rendered":"https:\/\/www.hyy.net\/?p=813"},"modified":"2025-04-25T23:59:16","modified_gmt":"2025-04-25T15:59:16","slug":"net-core-configuration","status":"publish","type":"post","link":"https:\/\/diji.net\/?p=813","title":{"rendered":".NET Core\u4e2d\u7684\u914d\u7f6eConfiguration\u5b9e\u6218"},"content":{"rendered":"

.NET Core\u4e2d\u7684\u914d\u7f6eConfiguration\u5b9e\u6218<\/h1>\n

\u4ecb\u7ecd\u6bcf\u79cd\u914d\u7f6e\u5982\u4f55\u4f7f\u7528<\/p>\n

\u57fa\u4e8e\u5185\u5b58\u7684\u914d\u7f6e\u7a0b\u5e8f<\/h2>\n

\u57fa\u4e8e\u5185\u5b58\u7684\u914d\u7f6e\u7a0b\u5e8f\u4e3b\u8981\u662f\u5728\u5185\u5b58\u4e2d\u7ef4\u62a4\u4e86\u4e00\u4e2aKey-Value\u952e\u503c\u5bf9\u3002<\/p>\n

static void MemoryConfig()\n{\n    List<KeyValuePair<string, string?>>? initialData = new List<KeyValuePair<string, string?>>();\n    initialData.Add(new KeyValuePair<string, string?>("name", "tom"));\n\n    IConfigurationRoot configuration = new ConfigurationBuilder()\n        .AddInMemoryCollection(initialData)\n        .Build();\n\n    Console.WriteLine("name:" + configuration["name"]);\n}<\/code><\/pre>\n
\u8c03\u7528\u5982\u4e0b:<\/p>\n
static void Main(string[] args)\n{\n    MemoryConfig();\n}<\/code><\/pre>\n
\u57fa\u4e8e\u73b0\u6709\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f<\/h2>\n
\u8fd9\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u7528\u7684\u76f8\u5bf9\u8f83\u5c11\uff0c\u662f\u5fae\u8f6f\u5728Microsoft.Extensions.Configuration\u7c7b\u5e93\u4e2d\u9ed8\u8ba4\u5b9e\u73b0\u7684\u4e00\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u5b83\u53ef\u4ee5\u628a\u5df2\u7ecf\u5b58\u5728\u7684\u914d\u7f6eIConfigurationRoot\u5c01\u88c5\u6210\u4e00\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u3002\u5982\u679c\u9700\u8981\u5bf9\u9488\u5bf9\u73b0\u6709\u914d\u7f6e\u5feb\u901fCopy\u51fa\u4e00\u4e2a\u65b0\u914d\u7f6e\u7684\u8bdd\uff0c\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u3002<\/p>\n
static void ChainedConfig()\n{\n    List<KeyValuePair<string, string?>>? initialData = new List<KeyValuePair<string, string?>>();\n    initialData.Add(new KeyValuePair<string, string?>("name", "tom"));\n\n    \/\/\u521d\u59cb\u5316\u4e00\u4e2a\u5df2\u6709\u7684\u914d\u7f6e\n    IConfigurationRoot configuration = new ConfigurationBuilder()\n        .AddInMemoryCollection(initialData)\n        .Build();\n\n    \/\/\u57fa\u4e8e\u5df2\u6709\u7684\u914d\u7f6e\uff0c\u91cd\u65b0\u751f\u6210\u4e00\u4e2a\u4e00\u6a21\u4e00\u6837\u7684\u914d\u7f6e\u3002\n    IConfigurationRoot newConfiguration = new ConfigurationBuilder()\n        .AddConfiguration(configuration)\n        .Build();\n    Console.WriteLine("name:" + configuration["name"]);\n}<\/code><\/pre>\n
\u57fa\u4e8e\u547d\u4ee4\u884c\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f<\/h2>\n
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\/\/\u57fa\u4e8e\u547d\u4ee4\u884c\u7684\u914d\u7f6e\n\nstatic void CommandLineConfig()\n{\n    IConfigurationRoot configuration = new ConfigurationBuilder()\n        .AddCommandLine(["name=tom","age=32"])\n        .Build();\n    Console.WriteLine("name:" + configuration["name"]);<\/code><\/pre>\n
\u57fa\u4e8e\u73af\u5883\u53d8\u91cf\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f
\n.NET\u53ef\u4ee5\u8bfb\u53d6\u73af\u5883\u53d8\u91cf\u4e2d\u7684Key-Value\u952e\u503c\u5bf9\uff0c\u5e76\u4e14\u53ef\u4ee5\u8fc7\u6ee4\u5230\u6307\u5b9a\u7684\u524d\u7f00\u6765\u7b5b\u9009\u3002\u4e0b\u9762\u4ee3\u7801\u4e2d\uff0c\u7a0b\u5e8f\u5c06\u4f1a\u52a0\u8f7d\u73af\u5883\u53d8\u91cf\u4e2d\u4ee5TEST_\u5f00\u5934\u7684\u6240\u6709\u53d8\u91cf\u5230\u914d\u7f6e\u4e2d\uff0c\u6211\u4eec\u5728\u7cfb\u7edf\u53d8\u91cf\u4e2d\uff0c\u65b0\u589e\u4e00\u4e2aTEST_Name\u7684\u53d8\u91cf\uff0c\u4e00\u5b9a\u8981\u91cd\u542f\u4e00\u4e0b\u8ba1\u7b97\u673a\uff0c\u5426\u5219\u65b0\u589e\u7684\u73af\u5883\u53d8\u91cf\u4e0d\u4f1a\u751f\u6548\u3002\u7136\u540e\u6211\u4eec\u7684\u7a0b\u5e8f\u5c31\u53ef\u4ee5\u8bfb\u53d6\u5230TEST_Name\u7684\u53d8\u91cf\u503c<\/p>\n
static void EnvironmentConfig()\n{\n    IConfigurationRoot configuration = new ConfigurationBuilder()\n        .AddEnvironmentVariables("Test_")\n        .Build();\n    Console.WriteLine("name:" + configuration["Name"]);\n}<\/code><\/pre>\n
\u57fa\u4e8eJson\u6587\u4ef6\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f<\/h2>\n
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\n\/\/\u57fa\u4e8eJson\u6587\u4ef6\u7684\u914d\u7f6e\nstatic void AddJsonFileConfig()\n{\n    IConfiguration configuration = new ConfigurationBuilder()\n        .AddJsonFile("app.json", optional: true, reloadOnChange: true)\n        .Build();\n    Console.WriteLine("name:" + configuration["name"]);\n}<\/code><\/pre>\n
app.json\u7684\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
{\n    "person":\n    {\n        "name":"caoruipeng",\n        "age":12,\n        "school":"\u5317\u4eac\u5927\u5b66"\n    },\n    "name":"tom11"\n}<\/code><\/pre>\n
\u57fa\u4e8eXML\u6587\u4ef6\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f<\/h2>\n
\u57fa\u4e8eXML\u7684\u914d\u7f6e\u6587\u4ef6\u4e5f\u662f\u6211\u4eec\u6bd4\u8f83\u5e38\u7528\u7684\u914d\u7f6e\u6587\u4ef6\u683c\u5f0f\u4e86\uff0c.NET\u63d0\u4f9b\u4e86\u6807\u51c6\u7684XML\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u6211\u4eec\u4f7f\u7528\u4e00\u4e0b\u4ee3\u7801\u4ece\u4e00\u4e2aapp.xml\u6587\u4ef6\u4e2d\u52a0\u8f7d\u914d\u7f6e\uff0c\u5e76\u4e14app.xml\u88ab\u4fee\u6539\u7684\u65f6\u5019\uff0c\u7a0b\u5e8f\u4e2d\u7684\u914d\u7f6e\u4e5f\u4f1a\u88ab\u66f4\u65b0\u3002<\/p>\n
\/\/\u57fa\u4e8eXML\u6587\u4ef6\u7684\u914d\u7f6e\nstatic void AddXmlFileConfig()\n{\n    IConfiguration configuration = new ConfigurationBuilder()\n        .AddXmlFile("app.xml", optional: true, reloadOnChange: true)\n        .Build();\n    Console.WriteLine("name:" + configuration["name"]);\n}<\/code><\/pre>\n
app.xml\u7684\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
<?xml version="1.0" encoding="utf-8" standalone="yes"?>\n<config>\n    <name>tom<\/name>\n    <age>21<\/age>\n    <school>beijing<\/school>\n<\/config>\n<\/code><\/pre>\n
\u57fa\u4e8eIni\u6587\u4ef6\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f<\/h2>\n
Ini\u914d\u7f6e\u6587\u4ef6\u5e73\u65f6 \u6211\u4eec\u4f7f\u7528\u7684\u6bd4\u8f83\u5c11\uff0c\u4e0d\u8fc7\u5fae\u8f6f\u8fd8\u662f\u5e2e\u6211\u4eec\u63d0\u4f9b\u4e86\u57fa\u4e8eIni\u6587\u4ef6\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u3002<\/p>\n
\/\/\u57fa\u4e8eINI\u6587\u4ef6\u7684\u914d\u7f6e\nstatic void AddIniFileConfig()\n{\n    IConfiguration configuration = new ConfigurationBuilder()\n        .AddIniFile("app.ini", optional: true, reloadOnChange: true)\n        .Build();\n    Console.WriteLine("name:" + configuration["person:name"]);\n}<\/code><\/pre>\n
app.ini\u6587\u4ef6\u7684\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
[person]\nname=tom\nage=27<\/code><\/pre>\n
\u81ea\u5b9a\u4e49\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f<\/h2>\n
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\/\/\u81ea\u5b9a\u4e49\u914d\u7f6e\u6e90\npublic class DataBaseConfigurationSource : IConfigurationSource\n{\n    public IConfigurationProvider Build(IConfigurationBuilder builder)\n    {\n        return new DataBaseConfigurationProvider();\n    }\n}\n\n\/\/\u81ea\u5b9a\u4e49\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\npublic class DataBaseConfigurationProvider : ConfigurationProvider\n{\n    public override void Load()\n    {\n        base.Load();\n        \/\/\u8bfb\u53d6\u6570\u636e\u5e93\u914d\u7f6e\n    }\n}\n\n\/\/\u6570\u636e\u5e93\u914d\u7f6e\u7a0b\u5e8f\u7684\u6269\u5c55\u65b9\u6cd5\npublic static class DataBaseConfigurationExtensions\n{\n    public static IConfigurationBuilder AddDb(this IConfigurationBuilder configurationBuilder)\n    {\n        configurationBuilder.Sources.Add(new DataBaseConfigurationSource());\n        return configurationBuilder;\n    }\n}\n\n\/\/\u8c03\u7528\u6848\u4f8b\nstatic void Main(string[] args)\n{\n    var builder = new ConfigurationBuilder()\n    .AddDb()\n    .Build();\n    var value = builder["key"];\n}<\/code><\/pre>\n
\n
\u7406\u89e3.NET Core\u4e2d\u7684\u914d\u7f6eConfiguration<\/h1>\n
\u4ec0\u4e48\u662f\u914d\u7f6e<\/h2>\n
.NET\u4e2d\u7684\u914d\u7f6e\uff0c\u672c\u8d28\u4e0a\u5c31\u662fkey-value\u952e\u503c\u5bf9\uff0c\u5e76\u4e14key\u548cvalue\u90fd\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\u3002<\/p>\n
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\u7c7b\u5e93\u540d\u79f0<\/th>\n\u7c7b\u5e93\u4f5c\u7528<\/th>\n<\/tr>\n<\/thead>\n
1\u3001Microsoft.Extensions.Configuration.Abstractions<\/td>\n\u5b9a\u4e49\u914d\u7f6e\u76f8\u5173\u7684\u63a5\u53e3\uff0c\u5176\u4ed6\u6240\u6709\u914d\u7f6e\u7c7b\u5e93\u90fd\u5fc5\u987b\u5f15\u7528\u8fd9\u4e2a\u7c7b\u5e93<\/td>\n<\/tr>\n
2\u3001Microsoft.Extensions.Configuration  Microsoft.Extensions.<\/td>\nConfiguration.Abstractions\u7c7b\u5e93\u7684\u7b80\u5355\u5b9e\u73b0<\/td>\n<\/tr>\n
3\u3001\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f:Microsoft.Extensions.Configuration.CommandLine<\/td>\n\u57fa\u4e8e\u547d\u4ee4\u884c\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u8d1f\u8d23\u5bf9\u547d\u4ee4\u884c\u7684\u914d\u7f6e\u8fdb\u884c\u8bfb\u5199\u3001\u8f7d\u5165\u3001\u91cd\u8f7d\u7b49\u64cd\u4f5c\u3002<\/td>\n<\/tr>\n
4\u3001\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f:Microsoft.Extensions.Configuration.EnvironmentVariables<\/td>\n\u57fa\u4e8e\u73af\u5883\u53d8\u91cf\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u8d1f\u8d23\u5bf9\u73af\u5883\u53d8\u91cf\u7684\u914d\u7f6e\u8fdb\u884c\u8bfb\u5199\u3001\u8f7d\u5165\u3001\u91cd\u8f7d\u7b49\u64cd\u4f5c<\/td>\n<\/tr>\n
5\u3001\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff1aMicrosoft.Extensions.Configuration.FileExtensions<\/td>\n\u57fa\u4e8e\u7684\u6587\u4ef6\u63d0\u4f9b\u7a0b\u5e8f\u7684\u57fa\u7c7b\u5e93\uff0c\u6587\u4ef6\u63d0\u4f9b\u7a0b\u5e8f\u5305\u62ec\u57fa\u4e8eJson\u6587\u4ef6\u3001Ini\u6587\u4ef6\u3001Xml\u6587\u4ef6\u6216\u8005\u81ea\u5b9a\u4e49\u6587\u4ef6\u7b49\u3002<\/td>\n<\/tr>\n
6\u3001\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff1aMicrosoft.Extensions.Configuration.Json<\/td>\n\u57fa\u4e8eJson\u6587\u4ef6\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u7a0b\u5e8f\uff0c\u8d1f\u8d23\u4eceJson\u6587\u672c\u6587\u4ef6\u4e2d\u5bf9\u914d\u7f6e\u8bfb\u5199\u3001\u8f7d\u5165\u3001\u91cd\u8f7d\u7b49\u64cd\u4f5c\u3002<\/td>\n<\/tr>\n
7\u3001\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff1aMicrosoft.Extensions.Configuration.Ini<\/td>\n\u57fa\u4e8eIni\u6587\u4ef6\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u8d1f\u8d23\u4eceIni\u6587\u4ef6\u4e2d\u5bf9\u914d\u7f6e\u8fdb\u884c\u8bfb\u5199\u3001\u8f7d\u5165\u3001\u91cd\u8f7d\u7b49\u64cd\u4f5c\u3002<\/td>\n<\/tr>\n
8\u3001\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff1aMicrosoft.Extensions.Configuration.UserSecrets<\/td>\n\u57fa\u4e8eUserSecrets\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u8fd9\u4e2a\u672c\u8d28\u4e0a\u4e5f\u662f\u4e00\u79cd\u57fa\u4e8eJson\u6587\u4ef6\u7c7b\u578b\u7684\u914d\u7f6e\u7a0b\u5e8f\u3002\u4e3b\u8981\u7528\u4e8e\u7ba1\u7406\u5e94\u7528\u673a\u5bc6<\/td>\n<\/tr>\n
9\u3001Microsoft.Extensions.Configuration.Binder<\/td>\n\u8d1f\u8d23\u5c06key-value\u952e\u503c\u5bf9\u7684\u914d\u7f6e\u5217\u8868\u7ed1\u5b9a\u5230\u6307\u5b9a\u7684C#\u5b9e\u4f53\u7c7b\u4e0a\uff0c\u65b9\u4fbf\u7a0b\u5e8f\u4f7f\u7528\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u4ece\u4e0a\u9762\u53ef\u4ee5\u770b\u5230\uff0c\u4e3b\u8981\u6709\u56db\u4e2a\u7c7b\u5e93\uff1a\u7b2c1\u4e2a\u7c7b\u5e93Abstractions\u8d1f\u8d23\u5b9a\u4e49\u914d\u7f6e\u7684\u4e00\u4e9b\u63a5\u53e3\uff0c\u7b2c2\u4e2a\u7c7b\u5e93Configuration\u8d1f\u8d23\u5b9a\u4e49\u914d\u7f6e\u7684\u7b80\u5355\u5b9e\u73b0\u3002\u7b2c3\u5230\u7b2c8\u4e2a\u7c7b\u5e93\u90fd\u662f\u5177\u4f53\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u7b2c9\u4e2a\u7c7b\u5e93Binder\u8d1f\u8d23\u5c06\u914d\u7f6e\u7ed1\u5b9a\u5230\u6307\u5b9a\u7684\u7684Model\uff0c\u65b9\u4fbf\u7a0b\u5e8f\u4f7f\u7528\u3002<\/p>\n
\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c.NET\u4e2d\u6709\u591a\u4e2a\u7c7b\u5e93\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u6bcf\u4e2a\u7c7b\u5e93\u63d0\u4f9b\u7a0b\u5e8f\u90fd\u662f\u4ee5\u5355\u72ec\u7684\u7c7b\u5e93\u5411\u5916\u63d0\u4f9b\uff0c\u57fa\u672c\u4e0a\u6bcf\u4e2a\u7c7b\u5e93\u5c31\u662f\u4e09\u4e2a\u6587\u4ef6\uff0c\u5206\u522b\u662fConfigurationExtensions.cs\u3001ConfigurationProvider.cs\u548cConfigurationSource.cs,\u8fd9\u4e09\u4e2a\u7c7b\u5206\u522b\u8868\u793a\u914d\u7f6e\u7684\u6269\u5c55\u65b9\u6cd5\u3001\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u548c\u914d\u7f6e\u6e90\u3002\u914d\u7f6e\u6e90\u7528\u4e8e\u751f\u6210\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u3002<\/p>\n
\u5728\u7b2c2\u4e2a\u7c7b\u5e93\u4e2d\uff0c\u5fae\u8f6f\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u4e86\u4e00\u4e2a\u57fa\u4e8e\u7c7b\u5e93\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u6211\u4eec\u5728\u5217\u8868\u4e2d\u6ca1\u6709\u5355\u72ec\u5217\u4e3e\u8fd9\u4e2a\u7c7b\u5e93\u63d0\u4f9b\u7a0b\u5e8f\u3002<\/p>\n
\u914d\u7f6e\u6e90IConfigurationSource<\/h2>\n
\u914d\u7f6e\u6e90\u8868\u793a\u4e00\u4e2a\u5355\u72ec\u7684\u914d\u7f6e\u96c6\u5408\uff0c\u53ef\u4ee5\u8868\u793a\u6765\u81ea\u5185\u5b58\u7684\u914d\u7f6e\u6e90\u3001\u6765\u81eaJson\u6587\u4ef6\u7684\u914d\u7f6e\u6e90\u3002\u4f46\u662f\u914d\u7f6e\u6e90\u4e0d\u76f4\u63a5\u63d0\u4f9b\u5bf9\u914d\u7f6e\u7684\u8bbf\u95ee\u64cd\u4f5c\uff0c\u5b83\u53ea\u6709\u4e00\u4e2a\u63a5\u53e3Build\uff0c\u8be5\u63a5\u53e3\u4e00\u4e2a\u5177\u4f53\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8fIConfigurationProvider \uff0c\u6bcf\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u8d1f\u8d23\u5bf9\u914d\u7f6e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u3001\u8f7d\u5165\u914d\u7f6e\u3001\u91cd\u8f7d\u914d\u7f6e\u7b49\u8bbf\u95ee\u64cd\u4f5c\u3002<\/p>\n
public interface IConfigurationSource\n{\n    IConfigurationProvider Build(IConfigurationBuilder builder);\n}<\/code><\/pre>\n
\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8fIConfigurationProvider<\/h2>\n
\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u8d1f\u8d23\u5b9e\u73b0\u914d\u7f6e\u7684\u8bbe\u7f6e\u3001\u8bfb\u53d6\u3001\u91cd\u8f7d\u7b49\u529f\u80fd\uff0c\u5e76\u4ee5\u952e\u503c\u5bf9\u5f62\u5f0f\u63d0\u4f9b\u914d\u7f6e\u3002<\/p>\n
public interface IConfigurationProvider\n{\n    \/\/\u8bfb\u53d6\u914d\u7f6e\n    bool TryGet(string key, out string? value);\n    \/\/\u4fee\u6539\u914d\u7f6e\n    void Set(string key, string? value);\n    \/\/\u83b7\u53d6\u91cd\u8f7d\u914d\u7f6e\u7684Token\n    IChangeToken GetReloadToken();\n    \/\/\u8f7d\u5165\u914d\u7f6e\n    void Load();\n    \/\/\u83b7\u53d6\u6307\u5b9a\u7236\u8def\u5f84\u4e0b\u7684\u76f4\u63a5\u5b50\u8282\u70b9Key\uff0c\u7136\u540e Concat(earlierKeys) \u4e00\u540c\u8fd4\u56de\n    IEnumerable<string> GetChildKeys(IEnumerable<string> earlierKeys, string? parentPath);\n}<\/code><\/pre>\n
\u914d\u7f6e\u6784\u5efa\u8005IConfigurationBuilder<\/h2>\n
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\u5047\u8bbe\uff0c\u5f53\u6211\u4eec\u67e5\u627e\u4e00\u4e2aKey\u4e3aName\u7684\u914d\u7f6e\uff0cIConfigurationRoot \u5185\u90e8\u4f1a\u904d\u5386\u6240\u6709Sources \u5c5e\u6027\u751f\u6210\u7684IConfigurationProvider\uff0c\u7136\u540e\u4f9d\u6b21\u8c03\u7528IConfigurationProvider\u7684TryGet\u6765\u83b7\u53d6Name\u7684\u5177\u4f53\u914d\u7f6e\u6570\u636e\u3002<\/p>\n
public interface IConfigurationBuilder\n{\n    \/\/\u4fdd\u5b58Build\u7684\u4e00\u4e9b\u516c\u5f00\u7684\u5b57\u5178\u5c5e\u6027\uff0c\u6709\u9700\u8981\u7684\u5316\u53ef\u4ee5\u4f7f\u7528\u8be5\u5b57\u6bb5\u5b58\u653e\u4e00\u4e9b\u53d8\u91cf\n    IDictionary<string, object> Properties { get; }\n    \/\/\u6765\u81ea\u591a\u4e2a\u5730\u65b9\u7684\u914d\u7f6e\u6e90\u96c6\u5408\n    IList<IConfigurationSource> Sources { get; }\n    \/\/\u5411Sources\u5c5e\u6027\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u914d\u7f6e\u6e90\n    IConfigurationBuilder Add(IConfigurationSource source);\n    \/\/\u57fa\u4e8e\u6240\u6709\u914d\u7f6e\u6e90\u751f\u6210\u4e00\u4e2a\u5168\u5c40\u7684\u914d\u7f6e\uff0c\u4f9b\u7a0b\u5e8f\u8bfb\u5199\uff0c\u4e00\u822c\u6211\u4eec\u90fd\u662f\u7528\u8fd9\u4e2a\u63a5\u53e3\u5bf9\u914d\u7f6e\u8fdb\u884c\u8bfb\u5199\u3002\n    IConfigurationRoot Build();\n}<\/code><\/pre>\n
\u914d\u7f6e\u6784\u5efa\u8005\u5b9e\u73b0\u7c7bConfigurationBuilder<\/h2>\n
\u5728\u5177\u4f53\u7684\u914d\u7f6e\u6784\u5efa\u8005\u7684Build\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u5b83\u4f9d\u6b21\u8c03\u7528IConfigurationProvider\u7684Buid\u65b9\u6cd5\u751f\u6210\u591a\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8fIConfigurationProvider \uff0c\u7136\u540e\u5c06\u6240\u6709\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8fproviders \u4f20\u7ed9\u4e86ConfigurationRoot\u3002ConfigurationRoot\u6b63\u662f\u8c03\u7528providers \u7684\u4e00\u7cfb\u5217\u65b9\u6cd5\u5b9e\u73b0\u5bf9\u914d\u7f6e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u3001\u91cd\u8f7d\u7b49\u64cd\u4f5c\u3002<\/p>\n
 public class ConfigurationBuilder : IConfigurationBuilder\n {\n     private readonly List<IConfigurationSource> _sources = new();\n     public IList<IConfigurationSource> Sources => _sources;\n     public IDictionary<string, object> Properties { get; } = new Dictionary<string, object>();\n     public IConfigurationBuilder Add(IConfigurationSource source)\n     {\n         ThrowHelper.ThrowIfNull(source);\n         _sources.Add(source);\n         return this;\n     }\n     public IConfigurationRoot Build()\n     {\n         var providers = new List<IConfigurationProvider>();\n         foreach (IConfigurationSource source in _sources)\n         {\n             IConfigurationProvider provider = source.Build(this);\n             providers.Add(provider);\n         }\n         return new ConfigurationRoot(providers);\n     }\n }<\/code><\/pre>\n
\u914d\u7f6e\u63a5\u53e3IConfiguration<\/h2>\n
\u8fd9\u4e2a\u63a5\u53e3\u5c31\u662f\u6700\u6838\u5fc3\u7684\u914d\u7f6e\u63a5\u53e3\uff0c\u63d0\u4f9b\u4e86\u5bf9\u914d\u7f6e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u3001\u91cd\u8f7d\u7b49\u64cd\u4f5c\uff0c\u5b83\u7684\u5b9e\u73b0\u7c7b\u662fConfigurationRoot\uff0c\u4e0a\u9762\u6211\u4eec\u5df2\u7ecf\u4ecb\u7ecd\u8fc7\uff0cIConfiguration\u672c\u8eab\u8fd8\u662f\u901a\u8fc7\u5404\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u5bf9\u914d\u7f6e\u8fdb\u884c\u8bbf\u95ee\u64cd\u4f5c\u3002<\/p>\n
public interface IConfiguration\n{\n    \/\/\u83b7\u53d6\u6216\u8bbe\u7f6e\u914d\u7f6e\n    string? this[string key] { get; set; }\n    \/\/\u83b7\u53d6\u6307\u5b9akey\u7684\u914d\u7f6e\u5b50\u8282\u70b9\n    IConfigurationSection GetSection(string key);\n    \/\/\u83b7\u53d6\u5f53\u524d\u914d\u7f6e\u7684\u76f4\u63a5\u5b50\u8282\u70b9\u5217\u8868\n    IEnumerable<IConfigurationSection> GetChildren();\n\n    \/\/\u5f53\u914d\u7f6e\u53d1\u751f\u53d8\u66f4\u65f6\u7684token\n    IChangeToken GetReloadToken();\n}<\/code><\/pre>\n
\u914d\u7f6e\u63a5\u53e3IConfigurationRoot<\/h2>\n
IConfigurationRoot\u5176\u5b9e\u662f\u914d\u7f6e\u7684\u6839\u63a5\u53e3\uff0c\u8be5\u63a5\u53e3\u6709\u4e2a\u6700\u91cd\u8981\u7684\u5c5e\u6027Providers \u8d1f\u8d23\u4fdd\u5b58\u6240\u6709\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0cIConfiguration\u5bf9\u914d\u7f6e\u7684\u8bbf\u95ee\uff0c\u5c31\u662f\u901a\u8fc7\u904d\u5386\u8fd9\u4e2aProviders\u6765\u8bbf\u95ee\u7684\u3002<\/p>\n
public interface IConfigurationRoot : IConfiguration\n{\n    \/\/\u5f3a\u5236\u91cd\u8f7d\u6240\u6709\u914d\u7f6e\n    void Reload();\n    \/\/\u6240\u6709\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\n    IEnumerable<IConfigurationProvider> Providers { get; }\n}<\/code><\/pre>\n
\u5b9e\u73b0\u81ea\u5b9a\u4e49\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f<\/h2>\n
\u5b9e\u73b0\u81ea\u5b9a\u4e49\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u5176\u5b9e\u53ea\u9700\u8981\u5b9e\u73b0\u4e09\u4e2a\u7c7b\u5c31\u53ef\u4ee5\uff0c\u4e00\u4e2a\u662f\u914d\u7f6e\u6e90\u3001\u4e00\u4e2a\u662f\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u3001\u4e00\u4e2a\u662f\u9488\u5bf9\u5f53\u524d\u914d\u7f6e\u7684\u6269\u5c55\u65b9\u6cd5\u3002\u7b2c\u4e09\u4e2a\u7c7b\u53ef\u6709\u53ef\u65e0\uff0c\u4e0d\u8fc7\u6211\u4eec\u4e00\u822c\u90fd\u8981\u5b9e\u73b0\u3002\u6211\u4eec\u6765\u53c2\u8003\u4e0b\u57fa\u4e8e\u547d\u4ee4\u884c\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u7c7b\u5e93\u7684\u6587\u4ef6\u3002\u6765\u5b9e\u73b0\u4e00\u4e2a\u57fa\u4e8e\u6570\u636e\u5e93\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u5206\u522b\u5b9e\u73b0\u914d\u7f6e\u6e90DataBaseConfigurationSource \u3001\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8fDataBaseConfigurationExtensions \u548c\u6269\u5c55\u65b9\u6cd5\u7c7bDataBaseConfigurationExtensions\uff0c\u5f53\u7136\u5728\u8fd9\u91cc\u6211\u4eec\u53ea\u505a\u5bf9\u5e94\u7684\u6f14\u793a\uff0c\u6ca1\u6709\u5b9e\u73b0\u5177\u4f53\u7684\u914d\u7f6e\u65b9\u6cd5\u3002<\/p>\n
\npublic class DataBaseConfigurationSource : IConfigurationSource\n{\n    public IConfigurationProvider Build(IConfigurationBuilder builder)\n    {\n        return new DataBaseConfigurationProvider();\n    }\n}\n\npublic class DataBaseConfigurationProvider : ConfigurationProvider\n{\n    public override void Load()\n    {\n        base.Load();\n        \/\/\u8bfb\u53d6\u6570\u636e\u5e93\u914d\u7f6e\n    }\n}\npublic static class DataBaseConfigurationExtensions\n{\n    public static IConfigurationBuilder AddDb(this IConfigurationBuilder configurationBuilder)\n    {\n        configurationBuilder.Sources.Add(new DataBaseConfigurationSource());\n        return configurationBuilder;\n    }\n}<\/code><\/pre>\n
\u8c03\u7528\u81ea\u5b9a\u4e49\u914d\u7f6e\u7a0b\u5e8f<\/h2>\n
static void Main(string[] args)\n{\n    var builder = new ConfigurationBuilder()\n        .AddDb()\n        .Build();\n    var value = builder["key"];\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
.NET Core\u4e2d\u7684\u914d\u7f6eConfiguration\u5b9e\u6218 \u4ecb\u7ecd\u6bcf\u79cd\u914d\u7f6e\u5982\u4f55\u4f7f\u7528 \u57fa\u4e8e\u5185\u5b58\u7684\u914d\u7f6e\u7a0b\u5e8f \u57fa\u4e8e\u5185\u5b58\u7684\u914d\u7f6e\u7a0b\u5e8f\u4e3b\u8981\u662f\u5728\u5185\u5b58\u4e2d\u7ef4\u62a4\u4e86\u4e00\u4e2aKey-Value\u952e\u503c\u5bf9\u3002 static void MemoryConfig() { List<KeyValuePair<string, string?>>? initialData = new List<KeyValuePair<string, string?>>(); initialData.Add(new KeyValuePair<string, string?>("name", "tom")); IConfigurationRoot configuration = new ConfigurationBuilder() .AddInMemoryCollection(initialData) .Build(); Console.WriteLine("name:" + configuration["name"]); } \u8c03\u7528\u5982\u4e0b: static void Main(string[] args) { MemoryConfig(); } \u57fa\u4e8e\u73b0\u6709\u7684\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f \u8fd9\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u7528\u7684\u76f8\u5bf9\u8f83\u5c11\uff0c\u662f\u5fae\u8f6f\u5728Microsoft.Extensions.Configuration\u7c7b\u5e93\u4e2d\u9ed8\u8ba4\u5b9e\u73b0\u7684\u4e00\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u5b83\u53ef\u4ee5\u628a\u5df2\u7ecf\u5b58\u5728\u7684\u914d\u7f6eIConfigurationRoot\u5c01\u88c5\u6210\u4e00\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u3002\u5982\u679c\u9700\u8981\u5bf9\u9488\u5bf9\u73b0\u6709\u914d\u7f6e\u5feb\u901fCopy\u51fa\u4e00\u4e2a\u65b0\u914d\u7f6e\u7684\u8bdd\uff0c\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u914d\u7f6e\u63d0\u4f9b\u7a0b\u5e8f\u3002 static void ChainedConfig() { List<KeyValuePair<string, string?>>? initialData = new List<KeyValuePair<string, string?>>(); initialData.Add(new KeyValuePair<string, string?>("name", […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-813","post","type-post","status-publish","format-standard","hentry","category-csharp"],"_links":{"self":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts\/813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=813"}],"version-history":[{"count":0,"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts\/813\/revisions"}],"wp:attachment":[{"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=813"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}