1

当我调用 API 时，会显示错误：

"无法加载文件或程序集 'System.Net.Http, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' 或其依赖项之一。系统找不到指定的文件。",

代码

我的 API 有一个基本控制器

[BreezeNHController]
public class baseApiController<T> : ApiController
    where T : class, IEntity
{
    public IRepository<T> Repositorio { get; private set; }

    [HttpGet, BreezeNHQueryable(AllowedQueryOptions = AllowedQueryOptions.All, PageSize = 20)]
    public IQueryable<T> Get()
    {
        return Repositorio.All();
    }

    // ..
}

和实施：

[BreezeController, Authorize]
public class usuariosController : baseApiController<User>
{
    public usuariosController(IUserRepository repositorio)
        : base(repositorio)
    { }
}

网址：GET/api/usuarios抛出异常！

但我的 DDL 是参考：

在此处输入图像描述

完整响应错误：

{
    "Message": "An error has occurred.",
    "ExceptionMessage": "The type initializer for 'Breeze.WebApi.BreezeControllerAttribute' threw an exception.",
    "ExceptionType": "System.TypeInitializationException",
    "StackTrace": "   at Breeze.WebApi.BreezeControllerAttribute.Initialize(HttpControllerSettings settings, HttpControllerDescriptor descriptor)\r\n   at System.Web.Http.Controllers.HttpControllerDescriptor.InvokeAttributesOnControllerType(HttpControllerDescriptor controllerDescriptor, Type type)\r\n   at System.Web.Http.Controllers.HttpControllerDescriptor.InvokeAttributesOnControllerType(HttpControllerDescriptor controllerDescriptor, Type type)\r\n   at System.Web.Http.Controllers.HttpControllerDescriptor..ctor(HttpConfiguration configuration, String controllerName, Type controllerType)\r\n   at System.Web.Http.Dispatcher.DefaultHttpControllerSelector.InitializeControllerInfoCache()\r\n   at System.Lazy`1.CreateValue()\r\n   at System.Lazy`1.LazyInitValue()\r\n   at System.Lazy`1.get_Value()\r\n   at System.Web.Http.Dispatcher.DefaultHttpControllerSelector.SelectController(HttpRequestMessage request)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__0.MoveNext()",
    "InnerException": {
        "Message": "An error has occurred.",
        "ExceptionMessage": "Could not load file or assembly 'System.Net.Http, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.",
        "ExceptionType": "System.IO.FileNotFoundException",
        "StackTrace": "   at Breeze.WebApi.JsonFormatter.Create()\r\n   at Breeze.WebApi.BreezeControllerAttribute..cctor()"
    }
}

尝试

在包管理器控制台中，运行命令Add-BindingRedirect。

<dependentAssembly>
    <assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-2.0.0.0" newVersion="2.0.0.0" />
</dependentAssembly>

发现奇怪的是没有指向4.0。这可能是问题吗？如果是，为什么Add-BindingRedirect没有工作？

4

1 回答 1

0

这绝对是一个绑定重定向问题。我建议您将整个<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">内容从一个新的 ASP.NET MVC 4 项目复制到您的 web.config 文件中。这偶尔会发生在我身上，刷新混乱的绑定可以解决问题。

于 2013-07-02T14:09:31.650 回答