Sentinel整合Gateway

1. pom引入依赖

   <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
   </dependency>
   <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-alibaba-sentinel-gateway</artifactId>
   </dependency>

2. 添加配置

   spring.cloud.sentinel.transport.dashboard=localhost:8858
   spring.cloud.sentinel.transport.port=8749
   spring.cloud.sentinel.filter.enabled=false

3. 硬编码限流规则

   @Configuration
   public class SentinelConfig {
       @PostConstruct
       public void init(){
           this.initCustomizeRule();
       }
   
       private void initCustomizeRule(){
           Set<GatewayFlowRule> list = new HashSet<>() ;
           GatewayFlowRule rule = new GatewayFlowRule("hello-nacos-client") ;
           rule.setResourceMode(SentinelGatewayConstants.RESOURCE_MODE_ROUTE_ID) ;
           // qps: 1
           rule.setGrade(1) ;
           rule.setCount(1) ;
           rule.setIntervalSec(1) ;
           rule.setControlBehavior(1) ;
           list.add(rule) ;
           GatewayRuleManager.loadRules(list) ;
       }
   }

4. 配置网关路由规则

   spring.cloud.gateway.enabled=true
   spring.cloud.gateway.discovery.locator.lower-case-service-id=true
   spring.cloud.gateway.routes[0].id=hello-nacos-client
   spring.cloud.gateway.routes[0].uri=lb://hello-nacos-client
   spring.cloud.gateway.routes[0].predicates[0]=Path=/hello-nacos/**
    spring.cloud.gateway.routes[0].filters[0]=StripPrefix=1

5. 浏览器访问：http://localhost:8080/hello-nacos/hello/index