我有一个名为appsettings.json的文件，其内容如下：
{
"someSetting": {
"subSettings": [
"one",
"two",
"three"
]
}
}
当我构建配置根时，像 config["someSetting:subSettings"] 这样做会返回 null，而实际可用的设置如下：
config["someSettings:subSettings:0"]
有没有更好的方法将 someSettings:subSettings 的内容作为列表检索？
appsettings.json看起来像这样：{
"foo": {
"bar": [
"1",
"2",
"3"
]
}
}
Configuration.GetSection("foo:bar").Get<List<string>>()
Configuration.GetSection("foo").GetSection("bar").Get<List<string>>(). - undefined在您的 appsettings.json 中创建一个配置部分，用于您的自定义定义：
"IDP": [
{
"Server": "asdfsd",
"Authority": "asdfasd",
"Audience": "asdfadf"
},
{
"Server": "aaaaaa",
"Authority": "aaaaaa",
"Audience": "aaaa"
}
]
public class IDP
{
public String Server { get; set; }
public String Authority { get; set; }
public String Audience { get; set; }
}
services.Configure<List<IDP>>(Configuration.GetSection("IDP"));
然后在你的控制器中，可以像这样编写代码：Note: if you need to immediately access your list within your ConfigureServices method you can use...
var subSettings = Configuration.GetSection("IDP").Get<List<IDP>>();
Public class AccountController: Controller
{
private readonly IOptions<List<IDP>> _IDPs;
public AccountController(IOptions<List<Defined>> IDPs)
{
_IDPs = IDPs;
}
...
}
举个例子，我在上述控制器中的其他地方使用它，如下所示：
_IDPs.Value.ForEach(x => {
// do something with x
});
在需要多个配置但不能使用数组且您无法确定任何时候将有多少子设置的情况下，请使用以下方法。
appsettings.json
"IDP": {
"0": {
"Description": "idp01_test",
"IDPServer": "https://intapi.somedomain.com/testing/idp01/v1.0",
"IDPClient": "someapi",
"Format": "IDP"
},
"1": {
"Description": "idpb2c_test",
"IDPServer": "https://intapi.somedomain.com/testing/idpb2c",
"IDPClient": "api1",
"Format": "IDP"
},
"2": {
"Description": "MyApp",
"Instance": "https://sts.windows.net/",
"ClientId": "https://somedomain.com/12345678-5191-1111-bcdf-782d958de2b3",
"Domain": "somedomain.com",
"TenantId": "87654321-a10f-499f-9b5f-6de6ef439787",
"Format": "AzureAD"
}
}
模型
public class IDP
{
public String Description { get; set; }
public String IDPServer { get; set; }
public String IDPClient { get; set; }
public String Format { get; set; }
public String Instance { get; set; }
public String ClientId { get; set; }
public String Domain { get; set; }
public String TenantId { get; set; }
}
public static class ExpandObjectExtension
{
public static TObject ToObject<TObject>(this IDictionary<string, object> someSource, BindingFlags bindingFlags = BindingFlags.Instance | BindingFlags.Public)
where TObject : class, new()
{
Contract.Requires(someSource != null);
TObject targetObject = new TObject();
Type targetObjectType = typeof(TObject);
// Go through all bound target object type properties...
foreach (PropertyInfo property in
targetObjectType.GetProperties(bindingFlags))
{
// ...and check that both the target type property name and its type matches
// its counterpart in the ExpandoObject
if (someSource.ContainsKey(property.Name)
&& property.PropertyType == someSource[property.Name].GetType())
{
property.SetValue(targetObject, someSource[property.Name]);
}
}
return targetObject;
}
}
配置服务
var subSettings = Configuration.GetSection("IDP").Get<List<ExpandoObject>>();
var idx = 0;
foreach (var pair in subSettings)
{
IDP scheme = ((ExpandoObject)pair).ToObject<IDP>();
if (scheme.Format == "AzureAD")
{
// this is why I couldn't use an array, AddProtecedWebApi requires a path to a config section
var section = $"IDP:{idx.ToString()}";
services.AddProtectedWebApi(Configuration, section, scheme.Description);
// ... do more stuff
}
idx++;
}
public class Definitions : List<Defined> {}。{
"Definitions": [
{
"Name": "某个名称",
"Title": "某个标题",
"Image": "某个图片链接"
},
{
"Name": "某个名称",
"Title": "某个标题",
"Image": "某个图片链接"
}
]
} - devmb您可以使用配置绑定器获取配置源的强类型表示形式。
这是我之前编写的一个测试示例，希望对您有所帮助：
[Fact]
public void BindList()
{
var input = new Dictionary<string, string>
{
{"StringList:0", "val0"},
{"StringList:1", "val1"},
{"StringList:2", "val2"},
{"StringList:x", "valx"}
};
var configurationBuilder = new ConfigurationBuilder();
configurationBuilder.AddInMemoryCollection(input);
var config = configurationBuilder.Build();
var list = new List<string>();
config.GetSection("StringList").Bind(list);
Assert.Equal(4, list.Count);
Assert.Equal("val0", list[0]);
Assert.Equal("val1", list[1]);
Assert.Equal("val2", list[2]);
Assert.Equal("valx", list[3]);
}
Bind。services.Configure<TOptions> 实现这个？我想从配置字段中注入包含数组的选项。 - Adamvar settingsSection = config.GetSection["someSettings:subSettings"];
var subSettings = new List<string>;
foreach (var section in settingsSection.GetChildren())
{
subSettings.Add(section.Value);
}
这应该会给你所需的值，存储在subSettings中。
抱歉，提出一个半古老的主题。我很难找到答案，因为许多方法已被弃用，例如Get和GetValue。如果你只需要简单的解决方案而不需要配置绑定器，那么这应该是可以的。:)
var settingsSection = config.GetSection("someSettings:subSettings");。换句话说，[]被()所替代。 - ehsan_kabiri_33在我的情况下配置
services.Configure<List<ApiKey>>(Configuration.GetSection("ApiKeysList"));
由于属性是只读的且没有默认构造函数，因此未加载。
在另一种情况下，一个类使用了公共字段而不是属性。
//无法工作
public class ApiKey : IApiKey
{
public ApiKey(string key, string owner)
{
Key = key;
OwnerName = owner;
}
public string Key { get; }
public string OwnerName { get;}
}
//正在工作
public class ApiKey : IApiKey
{
public ApiKey(){}//Added default constructor
public ApiKey(string key, string owner)
{
Key = key;
OwnerName = owner;
}
public string Key { get; set; } //Added set property
public string OwnerName { get; set; } //Added set property
}
只需获取整个部分即可填充列表属性，在设置类中。
services.Configure<Settings>(configuration.GetSection("Another:Some:Example"));
但是...请记住，如果在设置类中为该列表设置了默认值...那么配置设置将是累加的，因此不会覆盖原始值。
因此这些默认值将保留，因此真正的“无法通过任何其他配置方式删除它们”
public List<string> NonEditableStuff { get; set; } = new() { "XYZ1", "LTOY3" };
[Another:Some:Example:NonEditableStuff]
value=value
whatever2=whatever2
无法加载文件或程序集'Microsoft.Extensions.Configuration.Binder, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'。系统找不到指定的文件。 - devlife