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# Ocelot.Provider.Nacos
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Ocelot集成Nacos注册中心组件
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### 开发环境
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+ .Net Core 3.1 因为最新稳定版的Ocelot是在.Net Core 3.1上构建的
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+ Ocelot版本 v16.0.1
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+ Nacos访问组件 [nacos-sdk-csharp-unofficial](https://github.com/catcherwong/nacos-sdk-csharp) v0.2.7
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### 添加引用
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```
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<PackageReference Include="Ocelot.Provider.Nacos" Version="1.0.0" />
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```
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或
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```
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dotnet add package Ocelot.Provider.Nacos --version 1.0.0
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```
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### 使用方式
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在已有的Ocelot的项目上添加以下内容，具体操作可查看[demo](https://github.com/softlgl/Ocelot.Provider.Nacos/tree/master/demo/ApiGatewayDemo)
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```cs
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public void ConfigureServices(IServiceCollection services)
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{
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//注册服务发现
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services.AddOcelot().AddNacosDiscovery();
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}
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```
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再已有的ocelot配置文件上添加
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```json
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{
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// 转发路由，数组中的每个元素都是某个服务的一组路由转发规则
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"Routes": [
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{
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"ServiceName": "productservice",
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// Uri方案，http、https
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"DownstreamScheme": "http",
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// 下游（服务提供方）服务路由模板
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"DownstreamPathTemplate": "/productapi/{everything}",
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// 上游（客户端，服务消费方）请求路由模板
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"UpstreamPathTemplate": "/productapi/{everything}",
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"UpstreamHttpMethod": [ "Get", "Post" ],
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"LoadBalancerOptions": {
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"Type": "RoundRobin" //轮询
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},
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// 使用服务发现
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"UseServiceDiscovery": true
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}
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],
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"GlobalConfiguration": {
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"ServiceDiscoveryProvider": {
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//这里是重点
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"Type": "Nacos"
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}
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}
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}
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```
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然后添加在appsettings.json文件中添加,具体配置字段和nacos-sdk-csharp是保持一致的
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```json
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"nacos": {
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"ServerAddresses": [ "http://localhost:8848" ],
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"DefaultTimeOut": 15000,
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"Namespace": "",
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"ListenInterval": 1000,
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"ServiceName": "apigateway"
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}
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```
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