ocelot和nginx比较_Ocelot一个优秀的.NETAPI网关框架

1 什么是Ocelot&＃xff1f;

Ocelot是一个用.NET Core实现并且开源的API网关&＃xff0c;它功能强大&＃xff0c;包括了&＃xff1a;路由、请求聚合、服务发现、认证、鉴权、限流熔断、并内置了负载均衡器与Service Fabric、Butterfly Tracing集成。

2 如何使用Ocelot&＃xff1f;

首先&＃xff0c;创建2个WebApi项目&＃xff0c;WebApi01和WebApi02&＃xff0c;地址分别https://localhost:44313和https://localhost:44390&＃xff0c;其中WebApi01当作网关&＃xff0c;WebApi02当作具体的微服务Api。dotnet addpackage AutoMapperdotnet addpackage AutoMapper.Extensions.Microsoft.DependencyInjection

然后&＃xff0c;将Ocelot的NuGet软件包安装到WebApi01项目中。Ocelot

注意我这里安装的是17.0.0版本&＃xff0c;配置方面会有点不一样。

接着&＃xff0c;在Startup.ConfigureServices中增加services.AddOcelot;publicvoidConfigureServices(IServiceCollection services){

services.AddControllers();

services.AddSwaggerGen(c &＃61;>{

c.SwaggerDoc("v1", newOpenApiInfo { Title &＃61; "Autofac.WebApi", Version &＃61; "v1"});

});

services.AddOcelot();

}

接着&＃xff0c;在Startup.Configure中增加app.UseOcelot().Wait();publicvoidConfigure(IApplicationBuilder app, IWebHostEnvironment env)

{

if(env.IsDevelopment())

{

app.UseDeveloperExceptionPage();

app.UseSwagger();

app.UseSwaggerUI(c &＃61;> c.SwaggerEndpoint("/swagger/v1/swagger.json", "Ocelot.WebApi01 v1"));

}

app.UseHttpsRedirection();

app.UseRouting();

app.UseAuthorization();

app.UseEndpoints(endpoints &＃61;>

{

endpoints.MapControllers();

});

app.UseOcelot().Wait();

}

接着&＃xff0c;创建ocelot.json文件{

"Routes": [ //路由配置(注16.1版本将ReRoutes换成Routes){

"DownstreamPathTemplate": "/{url}", // 下游(服务提供方)服务路由模板"DownstreamScheme": "https", // 下游Uri方案&＃xff0c;http、https"DownstreamHostAndPorts": [ // 服务地址和端口&＃xff0c;如果是集群就设置多个{

"Host": "localhost",

"Port": 44390}

],

"UpstreamPathTemplate": "/api/{url}", // 上游(客户端&＃xff0c;服务消费方)请求路由模板"UpstreamHttpMethod": [ "GET"] // 允许的上游HTTP请求方法&＃xff0c;可以写多个}

],

"GlobalConfiguration": { //全局配置"BaseUrl": "https://localhost:44313"//网关对外地址}

}

最后&＃xff0c;在Program.CreateHostBuilder中增加AddJsonFile("ocelot.json", optional: false, reloadOnChange: true);publicstaticIHostBuilder CreateHostBuilder(string[] args) &＃61;>

Host.CreateDefaultBuilder(args)

.ConfigureAppConfiguration((hostingContext, builder) &＃61;>{

builder.AddJsonFile("ocelot.json", optional: false, reloadOnChange: true);

})

.ConfigureWebHostDefaults(webBuilder &＃61;>{

webBuilder.UseStartup();

});