spring cloud gateway整合sentinel作网关限流
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。
文章来自:https://www.cnblogs.com/dongbo/p/12225249.html