404尝试将上游路径路由到Ocelot中的下游路径

Question

我在将传入的HTTP请求转发到下游路径时遇到此警告/错误。

Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware：警告：requestId：80000025-0004-fd00-b63f-84710c7967bb，previousRequestId：没有先前的请求ID，消息：DownstreamRouteFinderMiddleware设置管道错误。IDownstreamRouteFinder返回了错误代码：UnableToFindDownstreamRouteError错误消息：无法匹配路由上游路径的配置：/ getDepartment，动词：GET。

Program.cs

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

    public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
       WebHost.CreateDefaultBuilder(args)
       .ConfigureAppConfiguration((host, config) =>
       {
           config.AddJsonFile("ocelot.json");
       })
    .UseStartup<Startup>();
}

Startup.cs

public IConfiguration Configuration { get; }

public Startup(IConfiguration configuration)
{
    Configuration = configuration;
}

// This method gets called by the runtime. Use this method to add services to the container.
// For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
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 async void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }

    await app.UseOcelot();

    app.Run(async (context) =>
    {
        await context.Response.WriteAsync("Hello World!");
    });
}

ocelot.json

{
  "ReRoutes": [
    {
      "DownstreamPathTemplate": "api/department",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 44388
        }
      ],
      "UpstreamPathTemplate": "/getDepartment",
      "UpstreamHttpMethod": [
        "Get"
      ]
    }
  ],
  "GlobalConfiguration": {
    "BaseUrl": "http://localhost:5000"
  }
}

我正在收到错误404。

Answer 1

如果使用的是最新版本（16.0.0），请在ocelot.json中将“ ReRoutes”更改为“ Routes”。

我遇到了同样的问题，然后遇到了此拉取请求，解释说它已更改为与新的Microsoft反向代理项目（YARP）相匹配。他们的文档需要更新。https://github.com/ThreeMammals/Ocelot/pull/1239