swagger--Failed to load API definition.

 打开

http://localhost:5000/swagger/v1/swagger.json

提示错误

An unhandled exception occurred while processing the request.
NotSupportedException: HTTP method "GET" & path "api/Report/ExportUserRegisterData" overloaded by actions - XXX.Application.Report.ReportApplication.ExportUserRegisterData (XXX.Application),XXX.Application.Report.ReportApplication.ExportUserRegisterData (XXX.Application). Actions require unique method/path combination for Swagger 2.0. Use ConflictingActionsResolver as a workaround
Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.CreatePathItem(IEnumerable<ApiDescription> apiDescriptions, ISchemaRegistry schemaRegistry)

原因

有Get类型的重载的接口方法

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解决方法

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

意思是swagger只会取其中一个Action

具体位置

//自动生成Api文档
            services.AddSwaggerGen(options =>
            {
                options.ResolveConflictingActions(apiDescriptions => apiDescriptions.First());
            });