将 Ocelot 16.0 与 ASP.Net Core 3.1 集成不起作用，因为我需要将 Swagger 与 Ocelot 一起使用

Posted 2023-03-28

【中文标题】将 Ocelot 16.0 与 ASP.Net Core 3.1 集成不起作用，因为我需要将 Swagger 与 Ocelot 一起使用

【英文标题】：Integrating Ocelot 16.0 with ASP.Net Core 3.1 not working as I need to use Swagger with Ocelot

【发布时间】：2020-10-15 18:35:22

【问题描述】：

我已经将 Ocelot 与 Asp.Net Core 2.1 一起使用并且可以正常工作，但是当与 Asp.Net Core 3.1 一起使用时，它根本无法正常工作。在我看来，它没有选择“ocelot.json”文件。以下是我的 Program.cs 文件：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

namespace ApiGateway

    public class Program
    
        public static void Main(string[] args)
        
            CreateHostBuilder(args).Build().Run();
        

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureAppConfiguration((hostingContext, config) =>
                
                    config
                        .SetBasePath(hostingContext.HostingEnvironment.ContentRootPath)
                        .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
                        .AddJsonFile($"appsettings.hostingContext.HostingEnvironment.EnvironmentName.json", optional: true, reloadOnChange: true)
                        .AddJsonFile($"ocelot.hostingContext.HostingEnvironment.EnvironmentName.json")
                        .AddEnvironmentVariables();
                )
                .ConfigureWebHostDefaults(webBuilder =>
                
                    webBuilder.UseStartup<Startup>();
                );
    

下面是 Startup.cs 文件：

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Ocelot.DependencyInjection;
using Ocelot.Middleware;

namespace ApiGateway

    public class Startup
    
        private IConfiguration configuration;
        public Startup(IConfiguration configuration)
        
            this.configuration = configuration;
        


        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        
            services.AddOcelot(configuration);
        

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        
            if (env.IsDevelopment())
            
                app.UseDeveloperExceptionPage();
            

            app.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            
                endpoints.MapGet("/", async context => 

                    await context.Response.WriteAsync("API GATEWAY FUNCIONANDO");
                );
            );

            app.UseOcelot().Wait();
        
    

以下是 ocelot.Development.json 文件：

  "ReRoutes": [
    
      "DownstreamPathTemplate": "/TestApi/api/test",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        
          "Host": "localhost",
          "Port": "80"
        
      ],
      "UpstreamPathTemplate": "/getTest"
    ,
    
      "DownstreamPathTemplate": "/TestMicroS/api/values",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        
          "Host": "localhost",
          "Port": "82"
        
      ],
      "UpstreamPathTemplate": "/getValues"
    
  ],
  "GlobalConfiguration": 
    
  

我已经参考了 YouTube 上的所有上述配置，但它不起作用。本地网站正在运行，但是当我尝试点击 UpStream 路径时，它给了我 localhost not found 404 错误。请帮我解决这个问题。

提前致谢。

【参考方案1】：

尝试在 JSON 文件中将 ReRoutes 重命名为 Routes。

【讨论】：

是的。你说得对。 Ocelot 16 有不同格式的配置文件。看看ref。