abp(net core)+easyui+efcore实现仓储管理系统——供应商管理升级之下(六十四)

13.Supplier的增删改查，我们是调用的WebApi来实现保存到数据库与查询数据的操作，那么问题就可能出在WebAPI这一个项目中。在Visual Studio 2022的解决方案资源管理器中，选中“ABP.TPLMS.Web.Host”项目，然后单击鼠标右键，在弹出菜单中选中“设为启动项目”。按F5运行应用程序，程序报错。

14. 在Visual Studio 2022的解决方案资源管理器中，“ABP.TPLMS.Web.Host”项目的App_DataLog目录下找到log.txt文件，这是一个日志文件。在文件中我找到如下，错误信息。

AspNetCore.Server.IIS.Core.IISHttpServer - Connection ID "18230571335350747201", 
Request ID "40000042-000a-fd00-b63f-84710c7967bb": An unhandled exception was thrown by the application. Microsoft.AspNetCore.Routing.Matching.AmbiguousMatchException: The request matched multiple endpoints. Matches:  ABP.TPLMS.Suppliers.SupplierAppService.CreateAsync (ABP.TPLMS.Application)  ABP.TPLMS.Suppliers.SupplierAppService.Create (ABP.TPLMS.Application)     at Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.ReportAmbiguity(CandidateState[] candidateState)    at Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.ProcessFinalCandidates
(HttpContext httpContext, CandidateState[] candidateState)    at Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.Select(HttpContext httpContext,
 CandidateState[] candidateState)    at Microsoft.AspNetCore.Routing.Matching.DfaMatcher.MatchAsync(HttpContext httpContext)     at Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.Invoke(HttpContext httpContext)     at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)

15. 在Visual Studio 2022的解决方案资源管理器中，“ABP.TPLMS.Applicationt”项目的Suppliers目录下找到SupplierAppService.cs文件。在文件中有两个Create方法，代码如下：

using Abp.Application.Services; using Abp.Domain.Repositories; using ABP.TPLMS.Entitys; using ABP.TPLMS.Suppliers.Dto; using System; using System.Collections.Generic; using System.Text; using System.Threading.Tasks;   namespace ABP.TPLMS.Suppliers {    public class SupplierAppService :AsyncCrudAppService<Supplier, SupplierDto, int,
 PagedSupplierResultRequestDto, CreateUpdateSupplierDto, CreateUpdateSupplierDto>,
ISupplierAppService          {         public SupplierAppService(IRepository<Supplier, int> repository)             : base(repository)     {                 }         public Task<SupplierDto> Create(CreateUpdateSupplierDto input)         {             return CreateAsync(input);         }          public override Task<SupplierDto> CreateAsync(CreateUpdateSupplierDto input)         {             var sin = input;             return base.CreateAsync(input);         }     } }