NetCore Consul动态伸缩+Ocelot 网关缓存自定义缓存 + 限流、熔断、超时等服务治理

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网关 OcelotGeteway

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网关 Ocelot配置文件

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{//===========================单地址多实例==负载均衡==Consul=  实现动态伸缩============================"Routes": [{// 上游  》》 接受的请求//上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法"UpstreamHttpMethod": [ "Get", "Post" ],"UpstreamPathTemplate": "/P5001/{url}",           //下游》》对接受的请求 进行转发//下游路径模板"DownstreamPathTemplate": "/api/{url}","DownstreamScheme": "http",//支持Consul的服务发现 的配置 就是下面的  GlobalConfiguration配置"UseServiceDiscovery": true,//consul的服务名称 "ServiceName": "Zen",//能负载均衡，但是不能动态伸缩 consul"LoadBalancerOptions": {//RoundRobin>>轮询   LeastConnection  >>最少连接数的服务器  NoLoadBalance"Type": "RoundRobin"}}],"GlobalConfiguration": {//网关对外地址"BaseUrl": "Http://localhost:6299","ServiceDiscoveryProvider": {"Schema": "https","Host": "127.0.0.1","Port": 8500,"Type": "Consul" //由consul提供服务发现，每次请求去consul}     }   
}

网关以webapi 为例

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using Ocelot.DependencyInjection;
using Ocelot.Middleware;
using Ocelot.Provider.Consul;namespace OcelotGateway
{public class Program{public static void Main(string[] args){var builder = WebApplication.CreateBuilder(args);// Add services to the container.//配置文件数据源builder.Configuration.AddJsonFile("Configuration.json", true,true);builder.Services.AddControllers();// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbucklebuilder.Services.AddEndpointsApiExplorer();builder.Services.AddSwaggerGen();builder.Services.AddOcelot().AddConsul();var app = builder.Build();// Configure the HTTP request pipeline.if (app.Environment.IsDevelopment()){app.UseSwagger();app.UseSwaggerUI();}//接受请求，转发app.UseOcelot();            //app.UseHttpsRedirection();//app.UseAuthorization();//app.MapControllers();app.Run();}}
}

实际的提供服务的程序以webapi为例

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ConsulHelper

 public  static class ConsulHelper{/// <summary>/// Consul注册/// </summary>/// <param name="configuration"></param>public static void ConsulRegist(this IConfiguration configuration){//找ConsulConsulClient client = new ConsulClient(c => {c.Address = new Uri("http://localhost:8500");c.Datacenter = "dc1";});string ip = string.IsNullOrWhiteSpace(configuration["ip"]) ? "localhost" : configuration["ip"];int port = string.IsNullOrWhiteSpace(configuration["weight"]) ? 1 : int.Parse(configuration["port"]);int weight = string.IsNullOrWhiteSpace(configuration["weight"]) ? 1 : int.Parse(configuration["weight"]);client.Agent.ServiceRegister(new AgentServiceRegistration(){//唯一的 ID = "service" + Guid.NewGuid(),//分组Name = "Zen",Address = ip,Port = port,Tags = new string[] { weight.ToString() },//心跳Check = new AgentServiceCheck(){//间隔多久一次Interval = TimeSpan.FromSeconds(12),//控制器HTTP = $"http://{ip}:{port}/Api/Health/Index",//检测等等时间Timeout = TimeSpan.FromSeconds(5),//失败后多久移除DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(120)}});//命令行参数获取Console.WriteLine($"注册成功：{ip}{port}-weight:{weight}");}}

Program 中


using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using Microsoft.OpenApi.Models;
using System.Net;
using System.Text;namespace WebAPI
{public class Program{public static void Main(string[] args){var builder = WebApplication.CreateBuilder(args);// Add services to the container.builder.Services.AddControllers();// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbucklebuilder.Services.AddEndpointsApiExplorer();builder.Services.AddSwaggerGen(options=>{options.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme{Description = "请录入Token，格式：Bearer xxxx   Bearer 后面必须有个空格",Name = "Authorization",In = ParameterLocation.Header,Type = SecuritySchemeType.ApiKey,BearerFormat = "JWT",Scheme = "Bearer"});//添加安全要求options.AddSecurityRequirement(new OpenApiSecurityRequirement {{new OpenApiSecurityScheme{Reference =new OpenApiReference{Type = ReferenceType.SecurityScheme,Id ="Bearer"}},new string[]{ }}});});// 开启Bearer 认证builder.Services.AddAuthentication("Bearer") // 配置 JWT Bearer 选项.AddJwtBearer("Bearer", option =>{option.Authority = "https://localhost:2025";option.TokenValidationParameters = new TokenValidationParameters{// 验证发行者//ValidateIssuer = true,// 验证受众ValidateAudience = false,// 验证令牌有效期//ValidateLifetime = true,// 验证签名密钥//ValidateIssuerSigningKey = true,// 发行者//ValidIssuer = builder.Configuration["TokenParameter:Issuer"],// 受众// ValidAudience = builder.Configuration["JokenParameter:Audience"],// 签名密钥//IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(builder.Configuration["TokenParameter:Secret"])),//AudienceValidator = (m, n, z) =>//{//    //自定义验证逻辑//    return true;//}};});builder.Services.AddAuthorization(options =>{options.AddPolicy(name: "ApiScope", configurePolicy: policy =>{//需要认证的用户policy.RequireAuthenticatedUser();policy.RequireClaim("scope", "sample_api");});});var app = builder.Build();// Configure the HTTP request pipeline.if (app.Environment.IsDevelopment()){app.UseSwagger();app.UseSwaggerUI();}app.MapWhen(context => context.Request.Path.Equals("/api/Health/Index"),applicationBuilder => applicationBuilder.Run(async context =>{Console.WriteLine($"This is Health Check");context.Response.StatusCode = (int)HttpStatusCode.OK;await context.Response.WriteAsync("OK");}));app.UseAuthentication();app.UseAuthorization();app.MapControllers();//程序启动时执行   ------  且只执行一次app.Configuration.ConsulRegist();app.Run();}}
}

1、启动Consul

consul agent -dev

参考资料
2、启动webapi实际的服务

dotnet run --urls=“http://:2501" --port=2501 --ip=“localhost” --weight=2
dotnet run --urls="http://:2502” --port=2502 --ip=“localhost” --weight=2
dotnet run --urls=“http://*:2503” --port=2503 --ip=“localhost” --weight=2
3、启动网关 Ocelot
dotnet run --urls=“http://localhost:6299”

源码

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网关Ocelot + Cache 缓存

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》》Ocelot program


using Ocelot.DependencyInjection;
using Ocelot.Middleware;
using Ocelot.Provider.Consul;
using Ocelot.Cache.CacheManager;
namespace OcelotGateway
{public class Program{public static void Main(string[] args){var builder = WebApplication.CreateBuilder(args);// Add services to the container.//配置文件数据源builder.Configuration.AddJsonFile("Configuration.json", true,true);builder.Services.AddControllers();// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbucklebuilder.Services.AddEndpointsApiExplorer();builder.Services.AddSwaggerGen();builder.Services.AddOcelot().AddConsul().AddCacheManager(x => {x.WithDictionaryHandle();//字典缓存});var app = builder.Build();// Configure the HTTP request pipeline.if (app.Environment.IsDevelopment()){app.UseSwagger();app.UseSwaggerUI();}//接受请求，转发app.UseOcelot();            //app.UseHttpsRedirection();//app.UseAuthorization();//app.MapControllers();app.Run();}}
}

》》》Ocelot 的配置文件
//缓存针对具体那个路由的

{"Routes": [{"UpstreamPathTemplate": "/T/{url}", //上游 网关地址   "UpstreamHttpMethod": [], // 空代表任意方式   【“Get” ,"Post"】"DownstreamPathTemplate": "/api/{url}", //服务地址>>真实的提供服务的"DownstreamSchema": "Http","UseServiceDiscovery": true, //开启服务发现 "ServiceName": "Zen", //Consul 服务名称"LoadBalancerOptions": {"Type": "RoundRobin" //轮询      LeastConnection  》最少连接数的服务器   NoLoadBalance  不负载},//鉴权//"AuthenticationOptins": {//    "AuthenticationProviderKey": "UserGatewayKey",//    "AllowedScope": []//},"FileCacheOptions": {"TtlSeconds": 15, //Ttl   Time To live"Region": "UserCache" //可以调用Api缓存清理}}], "GlobalConfiguration": {//网关对外地址"BaseUrl": "Http://localhost:6299","ServiceDiscoveryProvider": {"Schema": "https","Host": "127.0.0.1","Port": 8500,"Type": "Consul" //由consul提供服务发现，每次请求去consul}//"ServiceDiscoveryProvider": {//    "Host": "localhost",//    "Port": 8500,//    "Type": "PollConsul", //由consul提供服务发现//    "PollingInterval": 1000 //轮询consul  频率毫秒--down掉是不知道的//    //“Token":"footoken"/ /需要ACL的话//}}
}

自定义缓存

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》》》

using Consul;
using Ocelot.Cache;namespace OcelotGateway.OcelotExtend
{/// <summary>/// 自定义的缓存扩展/// </summary>public class CustomCacheExtend : IOcelotCache<CachedResponse>{private readonly ILogger<CustomCacheExtend> logger;public CustomCacheExtend(ILogger<CustomCacheExtend> logger){this.logger = logger;}/// <summary>/// 存放缓存数据的字典，当然可以缓存在Redis 、Mongodb/// 可以提取出去 /// </summary>private class CacheDataModel{public required CachedResponse CachedResponse { get; set; }public DateTime Timeout { get; set; }public string Region { get; set; }}private static Dictionary<string,CacheDataModel> CustomCacheExtendDictionay=new Dictionary<string,CacheDataModel>();/// <summary>/// 没做过期处理，所以需要/// </summary>/// <param name="key"></param>/// <param name="value"></param>/// <param name="ttl"></param>/// <param name="region"></param>public void Add(string key, CachedResponse value, TimeSpan ttl, string region){this.logger.LogWarning($" This is {nameof(CustomCacheExtend)}.{nameof(Add)}");//CustomCacheExtendDictionay.Add(key, new CacheDataModel()//{//    CachedResponse = value,//    Region = region,//    Timeout = DateTime.Now.Add(ttl)//});CustomCacheExtendDictionay[key] = new CacheDataModel(){CachedResponse = value,Region = region,Timeout = DateTime.Now.Add(ttl)};//throw new NotImplementedException();}public void AddAndDelete(string key, CachedResponse value, TimeSpan ttl, string region){throw new NotImplementedException();}public void ClearRegion(string region){this.logger.LogWarning($"This is {nameof(CustomCacheExtend)}.{nameof(ClearRegion)}");var keyList=CustomCacheExtendDictionay.Where(kv=>kv.Value.Region.Equals(region)).Select(kv=>kv.Key);foreach (var key in keyList){CustomCacheExtendDictionay.Remove(key);}//throw new NotImplementedException();}public CachedResponse Get(string key, string region){this.logger.LogWarning($"This is {nameof(CustomCacheExtend)}.{nameof(Get)}");if (CustomCacheExtendDictionay.ContainsKey(key)&& CustomCacheExtendDictionay[key] != null&& CustomCacheExtendDictionay[key].Timeout > DateTime.Now&& CustomCacheExtendDictionay[key].Region.Equals(region)){return CustomCacheExtendDictionay[key].CachedResponse;}elsereturn null;//throw new NotImplementedException();}public bool TryGetValue(string key, string region, out CachedResponse value){throw new NotImplementedException();}}
}

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网关 Ocelot 服务治理》》限流

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{"Routes": [{"DownstreamPathTemplate": "/api/{url}", //服务地址 --url 变量"DownstreamSchema": "http","UpstreamPathTemplate": "/T/{url}", //网关地址   --url变量"UpstreamHttpMethod": [ "Get", "Post" ],"UseServiceDiscovery": true,"ServiceName": "zen", //Consul 服务名称"LoadBalancerOptions": {"Type": "RoundRobin" //轮询},"RateLimitOptions": {"ClientWhitelist": [ "xx", "yy" ], //白名单 ClientId 区分大小写"EnableRateLimiting": true,//过期时间"Period": "5m", //1s   ,5m.1h,1d"PeriodTimespan": 30, //多少秒之后客户端可以重试"Limit": 5 //统计时间段内允许的最大请求数量},//"AuthenticationOptions": {//    "AuthenticationProviderKey": "UserGatewayKey",//    "AllowedScopes": []//},//"QoSOptions": {//    "ExceptionsAllowedBeforeBreaking": 3, //允许多少异常请求//    "DurationOfBreak": 10000, //熔断的时间   单位  ms//    "TimeoutValue": 2000 //单位ms   如果下游请求的处理时间超过多少则自如将请求设置为超时  默认90s//},//"FileCacheOptions": {//    "TtlSeconds": 15,//    "Region": "UserCache" //可以调用Api清理//}}],"GlobalConfiguration": {//网关对外地址"BaseUrl": "Http://localhost:6299","ServiceDiscoveryProvider": {"Schema": "https","Host": "127.0.0.1","Port": 8500,"Type": "Consul" //由consul提供服务发现，每次请求去consul},"RateLimitOptions": {"QuotaExceededMessage": "Too Many requests , maybe later ? ", //当请求过载被截断时返回的消息"HttpStatusCode": 666 ,//当请求过载被截断时返回的http status"ClientIdHeader": "Client_id"    //用来识别客户端的请求头    ,   默认是 ClientId}}
}

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源码

Ocelot 配置文件

{===========================单地址======================================"Routes": [    {        // 上游  》》 接受的请求        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法        "UpstreamHttpMethod": [ "Get", "Post" ],        "UpstreamPathTemplate": "/T5726/{url}",        //下游》》对接受的请求 进行转发        //下游路径模板        "DownstreamPathTemplate": "/api/{url}",        "DownstreamScheme": "http",        "DownstreamHostAndPorts": [            {                "Host": "localhost",                "Port": 1005            }        ]    }]//===========================单地址====鉴权==================================//"Routes": [//    {//        // 上游  》》 接受的请求//        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法//        "UpstreamHttpMethod": [ "Get", "Post" ],//        "UpstreamPathTemplate": "/xx/{url}",//        //下游》》对接受的请求 进行转发//        //下游路径模板//        "DownstreamPathTemplate": "/api/{url}",//        "DownstreamScheme": "http",//        "DownstreamHostAndPorts": [//            {//                "Host": "localhost",//                "Port": 1005//            }//        ],//        "AuthenticationOptins": {//            "AuthenticationProviderKey": "UserGatewayKey",//            "AllowedScopes": []//        }//    }//]//===========================单地址====全匹配=================================//"Routes": [//    {//        // 上游  》》 接受的请求//        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法//        "UpstreamHttpMethod": [ "Get", "Post" ],//        //冲突的还可以加权重 Priority//        "UpstreamPathTemplate": "/{url}",//        //下游》》对接受的请求 进行转发//        //下游路径模板//        "DownstreamPathTemplate": "/{url}",//        "DownstreamScheme": "http",//        "DownstreamHostAndPorts": [//            {//                "Host": "localhost",//                "Port": 1005//            }//        ]//    }//]========================多地址多实例===路由冲突+权重匹配======================================//"Routes": [//    {//        // 上游  》》 接受的请求//        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法//        "UpstreamHttpMethod": [ "Get", "Post" ],//        "UpstreamPathTemplate": "/{url}",//        "Priority": 1, //默认是0 //        //下游》》对接受的请求 进行转发//        //下游路径模板//        "DownstreamPathTemplate": "/{url}",//        "DownstreamScheme": "http",//        "DownstreamHostAndPorts": [//            {//                "Host": "localhost",//                "Port": 1005//            }//        ]//    },//    {//        // 上游  》》 接受的请求//        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法//        "UpstreamHttpMethod": [ "Get", "Post" ],//        "UpstreamPathTemplate": "/{url}",//        "Priority": 1, //默认是0 //        //下游》》对接受的请求 进行转发//        //下游路径模板//        "DownstreamPathTemplate": "/{url}",//        "DownstreamScheme": "http",//        "DownstreamHostAndPorts": [//            {//                "Host": "localhost",//                "Port": 1006//            }//        ]//    }//]===========================路由冲突+权重匹配======================================//"Routes": [//    {//        // 上游  》》 接受的请求//        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法//        "UpstreamHttpMethod": [ "Get", "Post" ],//        "UpstreamPathTemplate": "/{url}",//        "Priority": 1, //默认是0 //        //下游》》对接受的请求 进行转发//        //下游路径模板//        "DownstreamPathTemplate": "/{url}",//        "DownstreamScheme": "http",//        "DownstreamHostAndPorts": [//            {//                "Host": "localhost",//                "Port": 1005//            }//        ]//    },//    {//        // 上游  》》 接受的请求//        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法//        "UpstreamHttpMethod": [ "Get", "Post" ],//        "UpstreamPathTemplate": "/{url}",//        "Priority": 1, //默认是0 //        //下游》》对接受的请求 进行转发//        //下游路径模板//        "DownstreamPathTemplate": "/{url}",//        "DownstreamScheme": "http",//        "DownstreamHostAndPorts": [//            {//                "Host": "localhost",//                "Port": 1006//            }//        ]//    }//]//===========================单地址多实例==负载均衡===============================//"Routes": [//    {//        // 上游  》》 接受的请求//        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法//        "UpstreamHttpMethod": [ "Get", "Post" ],//        "UpstreamPathTemplate": "/P5001/{url}",//        //能负载均衡，但是不能动态伸缩 consul//        "LoadBalancerOptions": {//            //RoundRobin>>轮询   LeastConnection  >>最少连接数的服务器  NoLoadBalance//            "Type": "RoundRobin"//        },//        //"LoadBalancerOptions": {//        //    //粘粘性//        //    "Type": "CookieStickySessions",//        //    "Key": "Asp.Net_SessionId",//        //    "Expiry": 180000//        //},//        //下游》》对接受的请求 进行转发//        //下游路径模板//        "DownstreamPathTemplate": "/api/{url}",//        "DownstreamScheme": "http",//        //无法动态伸缩   ==》consul  可以 //        "DownstreamHostAndPorts": [//            {//                "Host": "localhost",//                "Port": 1005//            },//            {//                "Host": "localhost",//                "Port": 1006//            },//            {//                "Host": "localhost",//                "Port": 1007//            }//        ]//    }       //]//===========================单地址多实例==负载均衡==Consul=  实现动态伸缩============================//"Routes": [//    {//        // 上游  》》 接受的请求//        //上游请求方法,可以设置特定的 HTTP 方法列表或设置空列表以允许其中任何方法//        "UpstreamHttpMethod": [ "Get", "Post" ],//        "UpstreamPathTemplate": "/P5001/{url}",//        //"LoadBalancerOptions": {//        //    //粘粘性//        //    "Type": "CookieStickySessions",//        //    "Key": "Asp.Net_SessionId",//        //    "Expiry": 180000//        //},//        //下游》》对接受的请求 进行转发//        //下游路径模板//        "DownstreamPathTemplate": "/api/{url}",//        "DownstreamScheme": "http",//        //支持Consul的服务发现 的配置 就是下面的  GlobalConfiguration配置//        "UseServiceDiscovery": true,//        //consul的服务名称 //        "ServiceName": "Zen",//        //能负载均衡，但是不能动态伸缩 consul//        "LoadBalancerOptions": {//            //RoundRobin>>轮询   LeastConnection  >>最少连接数的服务器  NoLoadBalance//            "Type": "RoundRobin"//        }//    }//],//"GlobalConfiguration": {//    //网关对外地址//    "BaseUrl": "Http://localhost:6299",//    "ServiceDiscoveryProvider": {//        "Schema": "https",//        "Host": "127.0.0.1",//        "Port": 8500,//        "Type": "Consul" //由consul提供服务发现，每次请求去consul//    }//    //"ServiceDiscoveryProvider": {//    //    "Host": "localhost",//    //    "Port": 8500,//    //    "Type": "PollConsul", //由consul提供服务发现//    //    "PollingInterval": 1000 //轮询consul  频率毫秒--down掉是不知道的//    //    //“Token":"footoken"/ /需要ACL的话//    //}//}//********************************Consul   +   Cache  缓存 ***************************//"Routes": [//    {//        "UpstreamPathTemplate": "/T/{url}", //上游 网关地址   //        "UpstreamHttpMethod": [], // 空代表任意方式   【“Get” ,"Post"】//        "DownstreamPathTemplate": "/api/{url}", //服务地址>>真实的提供服务的//        "DownstreamSchema": "Http",//        "UseServiceDiscovery": true, //开启服务发现 //        "ServiceName": "Zen", //Consul 服务名称//        "LoadBalancerOptions": {//            "Type": "RoundRobin" //轮询      LeastConnection  》最少连接数的服务器   NoLoadBalance  不负载//        },//        //鉴权//        //"AuthenticationOptins": {//        //    "AuthenticationProviderKey": "UserGatewayKey",//        //    "AllowedScope": []//        //},//        "FileCacheOptions": {//            "TtlSeconds": 15, //Ttl   Time To live//            "Region": "UserCache" //可以调用Api缓存清理//        }//    }//], //"GlobalConfiguration": {//    //网关对外地址//    "BaseUrl": "Http://localhost:6299",//    "ServiceDiscoveryProvider": {//        "Schema": "https",//        "Host": "127.0.0.1",//        "Port": 8500,//        "Type": "Consul" //由consul提供服务发现，每次请求去consul//    }//    //"ServiceDiscoveryProvider": {//    //    "Host": "localhost",//    //    "Port": 8500,//    //    "Type": "PollConsul", //由consul提供服务发现//    //    "PollingInterval": 1000 //轮询consul  频率毫秒--down掉是不知道的//    //    //“Token":"footoken"/ /需要ACL的话//    //}//}//**************************单地址  +  Ids4****************************8//"Routes": [//    {//        "DownstreamPathTemplate": "/api/{url}", // 服务地址  --url变量//        "DownstreamSchema": "http",//        "DownstreamHostAndPorts": [//            {//                "Host": "127.0.0.1",//                "Port": 5726, //服务端口//            }//        ],//        "UpstreamPathTemplate": "/T/{url}", //官网 地址  --url变量//        "UpstreamHttpMethod": [ "Get", "Post" ],//        "AuthenticationOptions": {//            "AuthenticationProviderKey": "UserGatewayKey",//            "AllowedScopes": []//        }//    }//]//************************** 超时 限流 熔断 降级 Consul Polly ********************"Routes": [{"DownstreamPathTemplate": "/api/{url}", //服务地址 --url 变量"DownstreamSchema": "http","UpstreamPathTemplate": "/T/{url}", //网关地址   --url变量"UpstreamHttpMethod": [ "Get", "Post" ],"UseServiceDiscovery": true,"ServiceName": "zen", //Consul 服务名称"LoadBalancerOptions": {"Type": "RoundRobin" //轮询},"RateLimitOptions": {"ClientWhitelist": [ "xx", "yy" ], //白名单 ClientId 区分大小写"EnableRateLimiting": true,//过期时间"Period": "5m", //1s   ,5m.1h,1d"PeriodTimespan": 30, //多少秒之后客户端可以重试"Limit": 5 //统计时间段内允许的最大请求数量},//"AuthenticationOptions": {//    "AuthenticationProviderKey": "UserGatewayKey",//    "AllowedScopes": []//},//"QoSOptions": {//    "ExceptionsAllowedBeforeBreaking": 3, //允许多少异常请求//    "DurationOfBreak": 10000, //熔断的时间   单位  ms//    "TimeoutValue": 2000 //单位ms   如果下游请求的处理时间超过多少则自如将请求设置为超时  默认90s//},//"FileCacheOptions": {//    "TtlSeconds": 15,//    "Region": "UserCache" //可以调用Api清理//}}],"GlobalConfiguration": {//网关对外地址"BaseUrl": "Http://localhost:6299","ServiceDiscoveryProvider": {"Schema": "https","Host": "127.0.0.1","Port": 8500,"Type": "Consul" //由consul提供服务发现，每次请求去consul},"RateLimitOptions": {"QuotaExceededMessage": "Too Many requests , maybe later ? ", //当请求过载被截断时返回的消息"HttpStatusCode": 666 ,//当请求过载被截断时返回的http status"ClientIdHeader": "Client_id"    //用来识别客户端的请求头    ,   默认是 ClientId}}
}