1、創建項目並引入安裝包
首先,創建2個WebApi項目,WebApi01和WebApi02,地址分別https://localhost:44313和https://localhost:44390,其中WebApi01當作網關,WebApi02當作具體的微服務Api。
然後,將Ocelot的NuGet軟件包安裝到WebApi01項目中。
注意我這裏安裝的是17.0.0版本,配置方面會有點不一樣。
2、在Startup.ConfigureServices中增加services.AddOcelot
public void ConfigureServices(IServiceCollection services) { services.AddControllers(); services.AddSwaggerGen(c => { c.SwaggerDoc("v1", new OpenApiInfo { Title = "Autofac.WebApi", Version = "v1" }); }); services.AddOcelot(); }
3、在Startup.Configure中增加app.UseOcelot().Wait();
public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); app.UseSwagger(); app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "Ocelot.WebApi01 v1")); } app.UseHttpsRedirection(); app.UseRouting(); app.UseAuthorization(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); app.UseOcelot().Wait(); }
4、ocelot.json文件(你也要吧用默認的json配置文件)
{ "Routes": [ //路由配置(注16.1版本將ReRoutes換成Routes) { "DownstreamPathTemplate": "/{url}", // 下游(服務提供方)服務路由模板 "DownstreamScheme": "https", // 下游Uri方案,http、https "DownstreamHostAndPorts": [ // 服務地址和端口,如果是集羣就設置多個 { "Host": "localhost", "Port": 44390 } ], "UpstreamPathTemplate": "/api/{url}", // 上游(客戶端,服務消費方)請求路由模板 "UpstreamHttpMethod": [ "GET" ] // 允許的上游HTTP請求方法,可以寫多個 } ], "GlobalConfiguration": { //全局配置 "BaseUrl": "https://localhost:44313" //網關對外地址 } }
5、Program.CreateHostBuilder中增加AddJsonFile("ocelot.json", optional: false, reloadOnChange: true);
public static IHostBuilder CreateHostBuilder(string[] args) => Host.CreateDefaultBuilder(args) .ConfigureAppConfiguration((hostingContext, builder) => { builder.AddJsonFile("ocelot.json", optional: false, reloadOnChange: true); }) .ConfigureWebHostDefaults(webBuilder => { webBuilder.UseStartup<Startup>(); });
6、測試
讓我們來測試看看,https://localhost:44313/api/WeatherForecast會不會跳轉https://localhost:44390/WeatherForecast。