sentinel + gateway

一、sentinel 下載

啟動命令：java -Dserver.port=9090 -jar sentinel-dashboard-1.8.1.jar

這裡和只有 sentinel 時一模一樣

二、maven

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-gateway</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-sentinel</artifactId>
</dependency>

<dependency>
    <groupId>com.alibaba.csp</groupId>
    <artifactId>sentinel-transport-simple-http</artifactId>
</dependency>

<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>

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

三、設定檔

server:
  port: 8057
spring:
  application:
    name: sentinel-gateway-cloud
  main:
    allow-bean-definition-overriding: true # 因為報錯的提示，才加的
  cloud:
    sentinel:
      transport:
        port: 8719
        dashboard: localhost:9090 #對應 sentinel 的 port
      eager: true
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848
    gateway:
      routes:
        - id: sentinel_gateway_bruce
          uri: lb://provider-cloud
          predicates:
            - Path=/xxx/**
          filters:
            - StripPrefix=1

※以上可以寫在 application.yml 或 nacos 之類的伺服器上

四、啟動

啟動專案時要加上 VM 參數 -Dcsp.sentinel.app.type=1

左邊是整合後的畫面；右邊是沒有整合的畫面