说明: sentinel可以作为各微服务的限流,也可以作为gateway网关的限流组件。 spring cloud gateway有限流功能,但此处用sentinel来作为替待。
说明:sentinel流控可以放在gateway网关端,也可以放在各微服务端。
1,以父工程为基础,创建子工程
2,添加pom依赖
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-gateway</artifactId> </dependency> <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> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> </dependency>
2,添加配置项
server: port: 9092 spring: cloud: nacos: discovery: register-enabled: false server-addr: localhost:8848 namespace: c22e5019-0bee-43b1-b80b-fc0b9d847501 sentinel: transport: dashboard: localhost:8080 port: 8719 scg: fallback: mode: response response-status: 455 response-body: error! gateway: routes: - id: demo_route uri: lb://demo predicates: - Path=/demo/** - id: demo2_test uri: lb://demo2 predicates: - Path=/user/** application: name: gateway-sentinel
scg.fallback为sentinel限流后的响应配置
3,启动类
@SpringBootApplication @EnableDiscoveryClient public class GatewaySentinelApplication { public static void main(String[] args) { SpringApplication.run(GatewaySentinelApplication.class, args); } }
4,启动后,在sentinel控制台可以看到 gateway-sentinel 应用,可以通过控制台设置流控规则。
原文地址:https://www.cnblogs.com/dongbo/p/12225249.html
时间: 2024-10-10 22:20:56