Swagger 2.0不支持：带路径的多个操作

我在WebApi 2应用程序中集成了swagger。 应用程序有单个控制器时，它工作正常。 当我在应用程序中添加第二个控制器时。 我收到了以下错误：

发生错误。“，”ExceptionMessage“：”Swagger 2.0不支持：路径’api / Credential’和方法’GET’的多个操作。 请参阅配置设置 – \“ResolveConflictingActions \”以获取潜在的解决方法“，”ExceptionType“：”System.NotSupportedException“，”StackTrace“：”在Swashbuckle的Swashbuckle.Swagger.SwaggerGeneratorOptions.DefaultConflictingActionsResolver（IEnumerable 1 apiDescriptions)\r\n at Swashbuckle.Swagger.SwaggerGenerator.CreatePathItem(IEnumerable 1 apiDescriptions，SchemaRegistry schemaRegistry）\ r \ n在Swashbuckle.Swagger.SwaggerGenerator。 c__DisplayClass7.b__4（IGrouping 2 group)\r\n at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable 1 source，Func 2 keySelector, Func 2 elementSelector，IEqualityComparer 1 comparer)\r\n at Swashbuckle.Swagger.SwaggerGenerator.GetSwagger(String rootUrl, String apiVersion)\r\n at Swashbuckle.Application.SwaggerDocsHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Web.Http.Dispatcher.HttpRoutingDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Web.Http.Cors.CorsMessageHandler.d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.HttpServer. 2 keySelector, Func 1 comparer)\r\n at Swashbuckle.Swagger.SwaggerGenerator.GetSwagger(String rootUrl, String apiVersion)\r\n at Swashbuckle.Application.SwaggerDocsHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Web.Http.Dispatcher.HttpRoutingDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Web.Http.Cors.CorsMessageHandler.d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.HttpServer. 1 comparer)\r\n at Swashbuckle.Swagger.SwaggerGenerator.GetSwagger(String rootUrl, String apiVersion)\r\n at Swashbuckle.Application.SwaggerDocsHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Web.Http.Dispatcher.HttpRoutingDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)\r\n at System.Web.Http.Cors.CorsMessageHandler.d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.HttpServer. d__0.MoveNext（）“} http：// localhost：50950 / swagger / docs / v1

在第二个控制器中，我添加了以下两种方法。

  string Get(string username, string password); string Get(string credential); 

如果我评论其中一种方法。 然后它工作正常。

任何想法如何解决它？

Answer 1

在AppStart / SwaggerConfig.cs文件中

首先，你必须导入Linq

 using System.Linq; 

并在同一个文件中添加此行

 c.ResolveConflictingActions(apiDescriptions => apiDescriptions.First()); 

就在里面：

 GlobalConfiguration.Configuration .EnableSwagger(c => { ... 

一个考虑因素：在控制器中，必须使用Http methods ：

 [HttpGet] [Route("something")] public List something(){....} [HttpGet] [Route("something2")] public List something2(){....} [HttpPost] [Route("mypost1")] public List mypost1(){....} [HttpPost] [Route("mypost2")] public List mypost2(){....} 

Answer 2

上述两种方法有两种选择：

1. 将两个方法合并为一个具有三个参数的方法 – 每个方法都在查询字符串中

2. 有单独的路由url，如 – api/controller/byusername和api/controller/bycredentials

Answer 3

在使用属性路由的情况下也会出现此问题。

如果属性路由与可路由路由冲突，则会出现“多个操作”错误。

例：

 [HttpGet] [SwaggerOperation("GetByUsername")] [Route("[path]/User")] public IHttpActionResult GetUser(string username) { } 

有关属性路由的更多信息： https ： //docs.microsoft.com/en-us/aspnet/web-api/overview/web-api-routing-and-actions/attribute-routing-in-web-api-2

Answer 4

为方法[Route("ApiAnotherFunction")]和[HttpGet]添加路由属性。

Answer 5

阅读文档怎么样？ 它说Swashbuckle不支持这种方法签名。 但是，您可以创建一个操作filter来设置id或使用本SwaggerOperationAttribute中指出的SwaggerOperationAttribute 。