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如何从配置文件加载统一设置?

unity-container dependency-injection .net c#

Mihai Alexandru-Ionut · 技术社区 · 8 年前

我有一个统一配置文件( App.config )如下:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Unity.Configuration"/>
  </configSections>
  <unity xmlns="http://schemas.microsoft.com/practices/2010/unity">
    <alias alias="IProductService" type="UnityExample.Service.IProductService, UnityExample.Service" />
    <containers>
      <container name="Service">
        <register type="IProductService" mapTo="ProductService"/>
      </container>
    </containers>
  </unity>
</configuration>

现在我想负载上面的配置 file .

var container = new UnityContainer().LoadConfiguration("Service");

但我收到以下错误:

[argumentNullException:值不能为空。参数名称:节] Microsoft.Practices.Unity.Configuration.UnityContainerExtensions.LoadConfiguration(IUnityContainer 容器,UnityConfigurationSection部分,字符串containerName)

1 回复 | 直到 8 年前

Rui Jarimba 8 年前

我能让它工作。我使用您使用的相同名称空间创建了一个演示控制台应用程序,如下所示:

安装的Nuget包:

<?xml version=“1.0”encoding=“utf-8”?gt;
<软件包>
<package id=“Unity”version=“5.8.6”targetframework=“net461”/>
<package id=“Unity.Abstractions”version=“3.3.0”targetframework=“net461”/>gt;
<package id=“unity.configuration”version=“5.2.3”targetframework=“net461”/>gt;
</packages>
应用程序配置:

<?xml version=“1.0”encoding=“utf-8”?gt;
<配置>
<配置部分>
<section name=“Unity”type=“microsoft.practices.unity.configuration.unity配置节,unity.configuration”/>
</configSections>

<unity xmlns=“http://schemas.microsoft.com/practices/2010/unity”>
<assembly name=“UnityExample”/>
<namespace name=“UnityExample.Service”/>

<容器>
<container name=“服务”>
<register type=“iproductService”mapto=“productService”/>
</container>
</containers>
</Unity>

<启动>
<supportedRuntime version=“v4.0”sku=“NetFramework,version=v4.6.1”/>
</startup>
<运行时>
<assemblybinding xmlns=“urn:schemas-microsoft-com:asm.v1”>
<dependentassembly>
<assemblyIdentity name=“Unity.configuration”publicKeyToken=“6d32f45e0ccc69f”culture=“neutral”/>gt;
<bindingRedirect oldversion=“0.0.0.0-5.2.3.0”newversion=“5.2.3.0”/>gt;
</DependentAssembly>
</assemblybinding>
</runtime>
</configuration>
代码:

命名空间UnityExample.service
{
公共接口IProductService
{

}

公共类ProductService:IProductService
{
}
}
主:

使用system.configuration;
使用microsoft.practices.unity.configuration;

使用统一;
使用UnityExample.Service;

命名空间单元示例
{
课程计划
{
静态void main(string[]args)
{
var container=new unitycontainer();
UnityConfigurationSection部分=(UnityConfigurationSection)ConfigurationManager.GetSection(“Unity”);
配置(容器,“服务”);

iproductService service=container.resolve<iproductService>();
}
}
}


安装的Nuget包:

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Unity" version="5.8.6" targetFramework="net461" />
  <package id="Unity.Abstractions" version="3.3.0" targetFramework="net461" />
  <package id="Unity.Configuration" version="5.2.3" targetFramework="net461" />
</packages>


应用程序配置:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <configSections>
        <section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Unity.Configuration"/>
    </configSections>

    <unity xmlns="http://schemas.microsoft.com/practices/2010/unity">
        <assembly name="UnityExample" />
        <namespace name="UnityExample.Service" />

        <containers>
            <container name="Service">
                <register type="IProductService" mapTo="ProductService"/>
            </container>
        </containers>
    </unity>

    <startup>
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
    </startup>
    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="Unity.Configuration" publicKeyToken="6d32ff45e0ccc69f" culture="neutral" />
                <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
            </dependentAssembly>
        </assemblyBinding>
    </runtime>
</configuration>


代码:

namespace UnityExample.Service
{
    public interface IProductService
    {

    }

    public class ProductService : IProductService
    {
    }
}


主营:

using System.Configuration;
using Microsoft.Practices.Unity.Configuration;

using Unity;
using UnityExample.Service;

namespace UnityExample
{
    class Program
    {
        static void Main(string[] args)
        {
            var container = new UnityContainer();
            UnityConfigurationSection section = (UnityConfigurationSection)ConfigurationManager.GetSection("unity");
            section.Configure(container, "Service");

            IProductService service = container.Resolve<IProductService>();
        }
    }
}